Many people use Buffalo NAS, LinkStation, or TerStation in-house or in-house.′When I come to work during the holidays or after a power outage, LinkStation and TerStation are in ′′EM mode′′ and I cannot access the shared folder, and sometimes I cannot see the data inside.′A known-good LinkStation may suddenly go into EM mode and become unusable.This section describes the causes and recovery methods of LinkStation and TerStation in EM mode.
Table of Contents
1. What is the EM mode displayed on LinkStation and TerStation?
1.1.EM Mode Display Example
1.1.1. ·Example LS500 Series Display
1.1.2. ·Other LinkStation Display Examples
1.1.3. ·Example display on the TeraStation LCD panel
1.2. What Causes EM Mode?
1.2.1.1. If the hard drive inside the NAS, such as LinkStation, fails or is about to break.
1.2.2.2. When a power outage occurs, a sudden power outage, or lightning strikes while using the NAS
1.2.3.3. Failure of NAS body or damage to board and power supply parts
1.2.4.4.Firmware bugs and bugs
1.2.5.5. Mis-inserting the Cable
1.3. How to recover and work with LinkStation or TerStation in EM mode
1.3.1.1. Update Firmware
1.3.2.2. Remove the hard drive from the NAS to recover data
1.3.3.3. If you are worried about how to recover or deal with it,
1.3.3.1.1. How to Update Firmware
1.3.3.2.2. How do I recover data by removing the hard drive from the NAS?
1.4. What is a Firmware Update?
1.5. Precautions for Firmware Updates
1.6. How to Update Firmware
1.6.1.1.Preparation
1.6.2.2. Download the app for updates from the Software Download Service
1.6.3.3. When downloaded, expand the compressed file
1.6.4.4. Actual Firmware Update Flow
1.6.4.1. NAS Using NAS Navigator 2, check network information (IP address and subnet mask) of LinkStation and take notes of the contents
1.6.4.2. パソコン Temporary changes to personal computer network information
1.6.4.3.3 Temporary changes to network information
1.6.4.4.4 Perform firmware updates
1.6.4.5.5 After the update is complete, restore the network information of the PC to its original value.
1.7. What Does Firmware Update Fail?
1.7.1.1. Firmware Update Does Not Complete Successfully
1.7.2.2. Formatting (initialization) is prompted ·Error message appears
1.7.3.3. Disk check does not stop after firmware update
1.8. When you want to recover data by removing the hard drive from the LinkStation
1.9. How to Prevent EM Mode from Occurring
1.9.1.1. Take regular backups
1.9.2.2. Utilize email notification function and receive error notification
1.9.3.3. Utilize regular hard drive disk checks (diagnostics)
1.9.4.4. Countermeasures against unexpected shutdowns such as power outages·UPS introduction
1.9.5.5. To prevent the effects of lightning strikes and equipment failure due to lightning
2. In the unlikely event that a device such as LinkStation is in EM mode,
What are the EM modes displayed on LinkStation and TerStation?
EM mode refers to a situation in which the NAS (Network Hard Drive) boot software is damaged and cannot boot properly, and the NAS cannot be accessed from a PC.When LinkStation or TerStation is in EM mode, Buffalo NAS boot software, and NAS Navigator 2 displays EM mode and disk space when you select the product icon such as LinkStation.EM mode stands for Emergency Mode, and some models may display ′standby mode′ instead of ′EM mode′.If you replace a computer with a computer, just as the operating system such as Windows is damaged and the computer does not boot, the NAS will be unable to boot.This condition is referred to as ′EM mode′, ′standby mode′, or ′recovery mode′, which causes problems such as not being able to access LinkStation or TerStation.
↓ If you do not have access to the LinkStation, please refer to this as well.
AT DATA RECOVERY MEDIUM
What Causes and How to Recover LinkStation Inaccessible?
https://www.adte.jp/rec/hdd/post-678/
Unable to access the LinkStation being used by the share.An error message appears.The shared folder is inaccessible.If you have trouble reading or writing a folder containing the saved data, don′t panic and check one by one.In the event of a LinkStation failure, repeated reboots and power-on cycles can worsen the failure.Here are some ways to solve equipment problems that contain important data.
EM Mode Display Example
EM and standby modes can be viewed in NAS Navigator 2, the management software of the Buffalo NAS.
·Example display on LS500 series
①A green or yellow ′?′ mark appears on the icon of a product such as LinkStation.
②When you click on the product icon, EM mode appears on the disk space (lower part of the screen).
③When I hover my mouse over the icon of the product, in addition to the name and IP address, I detected ′E04 firmware is damaged′ and ′EM mode′.US>Please perform a firmware update or contact the repair center.′
·Examples of display on other LinkStations
①Some LinkStation Names in NAS Navigator 2 Include EM Characters
②Click the product icon → EM mode or standby mode appears at the bottom of the screen.
③Sometimes the ′!′ mark appears on the icon instead of the ′?′ mark.
L When the word ′EM′ is displayed in the name of LinkStation or TerStation, the device is in ′recovery mode′, and in this state, it is often a symptom of not being able to access the file or read or write the file.
·Examples of display on the TerStation LCD panel
EMERGENCY MODE NO ARRAY INFO on the LCD panel for models with LCD panels installed in the TerStation body
You may also see .
What Causes EM Mode?
EM mode can occur due to the following reasons:
The hard drive inside the NAS, such as LinkStation, has failed or is about to break.
Power outages, sudden power outages, or lightning strikes while using the NAS
Failure of NAS body, damage to board and power supply parts
Firmware bugs and bugs
Incorrect cable insertion
1. If the hard drive inside the NAS, such as LinkStation, fails or is about to break.
A failed hard drive on a NAS, such as LinkStation or TerStation, can damage the NAS firmware and cause it to enter ′EM mode.′Alternatively, the condition of the hard drive may deteriorate, and it may lead to a sudden display of EM mode may suddenly be displayed.
2. If a power outage occurs while using the NAS, the power is suddenly turned off, or lightning strikes occur.
After a power outage or circuit breaker falls, the NAS firmware such as LinkStation and TerStation may be corrupted and lead to ′EM mode′ due to lightning strikes.In many cases, if you try to turn it back on after a sudden power outage other than a planned power outage or after moving, you will be in EM mode.A sudden shutdown can cause overcurrent and damage to the firmware.Also, be aware that if the NAS freezes or does not respond, it may go into ′EM mode′ after turning it off and on again.
↓If you are having trouble connecting to NAS such as LinkStation after the power outage, click here.
AT DATA RECOVERY MEDIUM
Learn how to avoid NAS connectivity or data loss after a power outage
https://www.adte.jp/rec/hdd/post-716/
It also explains how to deal with NAS (TeraStation, LinkStation, LANDISK, etc.) and server problems after a power outage, and also explains how to avoid losing important data on the NAS after a power outage.
3. Failure of NAS body, damage to board and power supply parts
For NASs that have been running for more than 5 years, ′EM mode′ can be caused by a failure of the unit, damage to the board and power supply parts.Even if you use it for a short period of time, you need to be careful because the parts inside may suddenly break down.
4. Firmware bugs and defects
A firmware bug or bug can cause ′EM mode′ and cause problems that prevent the NAS from booting.
5. Incorrect cable insertion
If you have multiple power cables, such as running multiple LinkStation and TerStation, be careful not to mis-insert the power cable.In some cases, plugging a cable with different power into a LinkStation may result in ′EM mode′ or prompt initialization.How to recover and work with LinkStation or TerStation in EM mode
When LinkStation or TerStation goes into EM mode or Standby mode, there are the following recovery and troubleshooting options:Each has its own advantages and disadvantages, so you need to be careful about what you do and what you do.If you don′t want to lose the data you have inside, or if you have any concerns or concerns, stop and talk to a professional data recovery company before proceeding.
perform a firmware update
Recover data by removing the hard drive from the NAS
in the event of difficulties in how to recover or deal with
1. Update the firmware
The firmware update must be done by connecting the NAS to the PC via a LAN cable.
merit
·If the firmware update is successful (if successful), it will return to the original device such as LinkStation ·Data will be restored.
disadvantage
·If the firmware update fails, there is a risk that all data stored in LinkStation and TerStation will disappear.
′·If you use a model that does not have a wired LAN terminal on a Windows or Mac PC, you will need to purchase a ′′LAN connection adapter (USB connection type)′ and prepare it separately.′
2. Recover data by removing the hard drive from the NAS
merit
·If the work is successful, the data contained in the NAS such as LinkStation and TerStation can be recovered and retrieved
disadvantage
·HDDs (HDDs configuring RAID) built into NAS such as LinkStation cannot be directly connected to personal computers, so there is more to worry about.
·It is difficult for individuals to deal with problems or problems with the HDD itself (to recover or repair the HDD, it is necessary to procure a dedicated environment such as a clean room, advanced technical capabilities, expertise, and compatible parts).
·There is a risk that the condition may deteriorate by continuing to energize, turning off the power, and restarting the hard drive itself when there is a problem.
·In the case of hard drives that have RAID built, the risk of increasing failures such as RAID configuration being broken or RAID collapse is increased by proceeding.
·If there are more than one HDD built into LinkStation or TerStation, it is difficult to handle.
·Depending on the type of HDD installed, it may be necessary to destroy the external case.
3. If you are worried about how to recover or deal with it,
If you have data backed up, or if the data in the LinkStation disappears, the device should be able to operate in good condition, and if you only want to repair the NAS,
1. How to update the firmware
For those who have not been able to back up their data, or who are in trouble if they lose their stored data,
2. How to recover data by removing the hard drive from the NAS
Consider doing .Either way, if you have any concerns or concerns, give priority to consulting a professional data recovery provider before proceeding.If you try not to get worse, you can avoid the risk of losing data.
↓If you have a problem with NAS such as LinkStation and are considering repairing it, click here.
AT DATA RECOVERY MEDIUM
Repair and recovery in the event of a NAS problem.
https://www.adte.jp/rec/hdd/post-1185/
In case of trouble such as inaccessible NAS or shared folder, NAS does not work, does not boot, does not turn on, etc., it is important to check where the failure occurred and to take correct action.Here are some of the things you should be careful about when you think of a NAS failure, how to deal with it, and the differences between manufacturer repair and data recovery.
What is a Firmware Update?
LinkStation and TerStation contain one to eight internal HDDs, and the information within each HDD is partitioned (separated area on recording media data).The hard drive partition has an OS and data section, and the firmware is stored in the OS section.Updating firmware refers to replacing the contents of the OS portion of the partition in the recording media with a newer version.
What to Do When Updating Firmware?
When LinkStation or TerStation is in EM mode, many people think that updating the firmware of the product will solve the problem and restore it.However, it is important to be aware that firmware updates may fail, or that updates may not recover.In addition, when there is a problem with LinkStation/TeraStation, such as EM mode, firmware updates can worsen the hard drive failure condition or make it difficult to recover.If the data stored in LinkStation or TerStation is important, or if you are worried that it might disappear, you should give priority to consulting a professional data recovery provider before proceeding.I want to avoid the consequences of working in a hurry and regretting it as much as possible.
How to Update Firmware
If you want to try a firmware update when LinkStation or TerStation is in EM mode, you need to proceed in the following order:
preliminary preparation
Download apps for updates from the software download service
expand the compressed file once downloaded
actual firmware update flow
1.Preparation
Firmware updates require installation of （ Windows PC (model with wired LAN) LAN LAN adapter (if Windows PC does not have wired LAN terminal) パソコン LAN cable to connect PC to LinkStation. NAS NAS Navigator 2 is installed.Let′s get ready.
2. Download applications for updates through the software download service
Open the product manufacturer site (the Buffalo site) in a web browser to download the software.*Let′s look for the LinkStation and TerStation models in the list.
You will see some downloadable software, so click LinkStation Series Firmware Update (Windows) to start the download.
3. Expand the compressed file once downloaded
After downloading the program for firmware updates, it is saved as a compressed file.Expand the compressed file, open the destination folder, and check for updates only (such as LSUpdater).ここ We will not run the application here yet.
4. Actual firmware update flow
The update process is as follows:
①Use NAS Navigator 2 to view network information (IP address and subnet mask) for LinkStation and/or TerStation and take notes of the content
②temporarily change network information on a personal computer
Windows Start Menu → Control Panel → Network and Sharing Center → Change Adapter Settings → Network Connection → Double-click the LAN connection that connects the PC to LinkStation or TerStation → LAN Connection Status → Click on Properties → Press Properties → Open Internet Protocol Version 4 (TCP/IPv4) → Take notes.IPYou do not need to take notes when the IP address is automatically obtained.In the case of the computer you use for business purposes, it often contains numbers, so be sure to take notes if there are numbers in the items.If the network information before the change is lost and the contents cannot be restored, the computer will not be connected to the network.Let′s be careful.
③temporarily change network information
Enter numbers on the Internet Protocol Version 4 (TCP/IPv4) screen based on the IP address and subnet mask of the LinkStation and TerStation that were previously examined using NAS Navigator 2.(*The opening method is the same as the flow of 2)
·IP address: LinkStation ·Enter the number at the end of the IP address of the TerStation as +1 or -1
·Subnet mask: Insert the numerical value of the checked subnet mask as it is
·Default gateway: Enter the same number as the IP address of the LinkStation/TerStation you checked.
ネットワーク After changing the network information, if you leave this screen open without closing it, you will not need to open it again after updating the firmware.④perform a firmware update
′Double-click on ′′LSUpdater′′ for updates only → Start a dedicated program → Verify that the device displayed in the upper left corner (LinkStation, TeraStation model number, etc.) is correct → Press ′′Update′′ button at the bottom → Update′ screen →′
⑤Restore the network information on your computer to its original value when the update is complete
③Display the LAN connection screen that was left open in step → Press the button on the property → Select Internet Protocol Version 4 (TCP/IPv4) as you did when you changed it → Click the button on the property → Replace the changed number with the original number → Press OK to close all screens → Work completed
What Does Firmware Update Fail?
In many cases, when equipment such as LinkStation or TeraStation goes into EM mode, attempts to update the firmware fail.If the update fails, there may be serious damage to the LinkStation/TeraStation unit or internal hard drive, or the condition may deteriorate due to the update, leading to the failure of the update.If the data stored in LinkStation or TerStation is important, or if there is a problem when it is lost, it is dangerous to proceed with the operation.Let′s give priority to consulting a professional restoration company if you have any concerns.
Firmware Update Does Not Complete Successfully
Formatting (initialization) is prompted ·Error message appears
Disk check does not stop after firmware update
US>1. Firmware update does not complete successfully
If you are experiencing problems such as firmware updates failing or not completing successfully after many attempts, stop working.It is very dangerous to try again and again.It can lead to deteriorating conditions and data loss.
2. Formatting (initialization) is prompted ·Error message appears
Do not press ′No′ to format or initialize any error messages that need to be formatted.If you press ′yes′ in a hurry, all the data will be erased.
3. Disk check does not stop after firmware update
Damage to non-firmware areas may result in disk checks running after the update and non-stop problems.Turn off the power immediately when the disk check does not stop working.If this disk check does not stop, not only will the check be completed no matter how long you wait, but the HDD will continue to be loaded, so there is a high risk of data loss and inability to retrieve it.If you feel that something is wrong, you should first contact the data recovery company immediately after turning off the power.
When you want to recover data by removing the hard drive from the linkstation,
If you want to recover your data by removing the hard drive from the LinkStation or TerStation, you can check the status by connecting the hard drive directly to your computer.However, even if you connect the hard drive taken from the NAS directly to the PC, the file format is different, so you cannot see the contents of the stored data such as folders and files.Be careful because you cannot access it.When a hard drive has a minor logical failure, recovery software can be used to recover, but it is difficult to determine the extent of the failure by individuals, and the condition often deteriorates due to the attempt of the recovery software.In addition, many of the hard drives in LinkStation and TerStation contain RAID information, making it difficult for individuals to respond if not only EM mode but also RAID information is corrupted or if the partition information is corrupted.If the hard drive itself is experiencing a physical failure, four essentials are required: a dedicated environment such as a clean room, advanced technical capabilities, access to compatible parts, and expertise.If you really want to take out your hard drive and restore it, consult a professional recovery company before proceeding.When you want to reduce the cost of recovery, it is often better to consult with them without losing data, and without regret.
↓ If you would like to retrieve data from your hard drive, please visit here.
AT DATA RECOVERY MEDIUM
What do I do when I want to retrieve data from a failed hard drive?
https://www.adte.jp/rec/hdd/post-1307/
Hard drives are the most prone to failure among server components such as personal computers and NAS.A hard drive is one of the recording media that stores important data, and if it is broken, data can be lost, so be careful when handling it.Here′s how to retrieve and troubleshoot data in the event of a hard drive failure.
How to Prevent EM Mode from Occurring
While it is not entirely possible to prevent LinkStation or TerStation from entering EM mode, a combination of several preventive measures can help you prepare for trouble.
back up regularly
Use email notification function and receive error notification
Utilize regular hard drive disk checks (diagnostics)
Countermeasures against unexpected shutdowns such as power outages ·Introduction of UPS
To prevent the effects of lightning strikes and equipment failure due to lightning
1. Back up regularly
Buffalo LinkStations and TerStations come standard with automatic and regular backups to other NASs and USB external HDDs.You need to set up a backup in advance, but make sure to set it up as the most important and most important preventive measure.However, it is important to be careful because there are many cases where some kind of problem occurs even when setting up the backup, such as the failure of the backup or the failure of the backup in the middle of the backup.Don′t worry too much that it′s okay because you′re setting it up, check your backup destination files regularly once a month and check your timestamp to see if you can get a backup.
2. Utilize email notification function and receive error notification
LinkStation and TerStation have the ability to automatically send emails and notify you of errors when something goes wrong or is about to go wrong.The email notification function also needs to be set up in advance, but it is one of the functions that should be set up to minimize damage in the event of trouble.
3. Utilize regular hard drive disk checks (diagnostics)
LinkStation and TerStation have the ability to diagnose drives, such as internal hard drives, and disk checks.In the event of a hard drive failure, this disk-checking feature can be used to repair any minor failures.However, it is safer to back up before performing a disk check before performing a disk check, as disk checks can lead to poor conditions and data loss in the event of a severe or physical failure of the hard drive failure.Regular checks can fix anomalies, which can also help prevent failures and serious errors such as EM mode.
4. Countermeasures against unexpected shutdowns such as power outages · Introduction of UPS
If you have an uninterruptible power supply (UPS) in place, you will be able to deal with unexpected power problems, even if there is a sudden power outage and the power is off, such as a LinkStation.Turning off the power is one of the most burdensome activities for equipment and hard drives.With UPS, power is not immediately cut off in the event of a power outage, helping prevent LinkStation failures and hard drive damage.If a power outage causes a sudden shutdown of a LinkStation, the firmware is often damaged, and power outages are often the trigger for an ′EM mode′ to occur.Also, since sudden power outages often cause internal HDD failures, one of the ways to avoid equipment problems is to install UPSs if the data stored in the LinkStation is important.
5. To prevent the effects of lightning strikes and equipment failure due to lightning
Lightning and lightning can also cause problems with LinkStation.The data stored in the LinkStation is important, and it is safer to turn off the power when the device is turned off or when a lightning warning is issued.Also, each manufacturer distributes power taps for lightning guards, so it′s better to prepare them.
In the unlikely event that a device such as LinkStation is in EM mode,
If you can′t improve the situation by trying what you can do when LinkStation or TerStation is in EM mode, or if you can′t retrieve or import data stored in LinkStation or TerStation, you should stop and talk to a data recovery provider.It is very dangerous to proceed with the work if the cause is unknown or you are worried about how to operate it.This is because if you continue to work on it, the condition may deteriorate to the point where you cannot recover the data.It′s important to contact a professional recovery company as soon as possible when you want to avoid the risk of data loss or reduce recovery costs.If you′re worried about which restoration company to consult, check whether you have AI or proprietary technology.You can see that it is a company with high technical capabilities.Advanced technology has AI technology and proprietary technology, and has a lot of experience in troubleshooting and recovering LinkStation and TerStation, helping to reduce recovery costs.If you are in trouble, why don′t you start with a free consultation?
Table of Contents
1. What is the EM mode displayed on LinkStation and TerStation?
1.1.EM Mode Display Example
1.1.1. ·Example LS500 Series Display
1.1.2. ·Other LinkStation Display Examples
1.1.3. ·Example display on the TeraStation LCD panel
1.2. What Causes EM Mode?
1.2.1.1. If the hard drive inside the NAS, such as LinkStation, fails or is about to break.
1.2.2.2. When a power outage occurs, a sudden power outage, or lightning strikes while using the NAS
1.2.3.3. Failure of NAS body or damage to board and power supply parts
1.2.4.4.Firmware bugs and bugs
1.2.5.5. Mis-inserting the Cable
1.3. How to recover and work with LinkStation or TerStation in EM mode
1.3.1.1. Update Firmware
1.3.2.2. Remove the hard drive from the NAS to recover data
1.3.3.3. If you are worried about how to recover or deal with it,
1.3.3.1.1. How to Update Firmware
1.3.3.2.2. How do I recover data by removing the hard drive from the NAS?
1.4. What is a Firmware Update?
1.5. Precautions for Firmware Updates
1.6. How to Update Firmware
1.6.1.1.Preparation
1.6.2.2. Download the app for updates from the Software Download Service
1.6.3.3. When downloaded, expand the compressed file
1.6.4.4. Actual Firmware Update Flow
1.6.4.1. NAS Using NAS Navigator 2, check network information (IP address and subnet mask) of LinkStation and take notes of the contents
1.6.4.2. パソコン Temporary changes to personal computer network information
1.6.4.3.3 Temporary changes to network information
1.6.4.4.4 Perform firmware updates
1.6.4.5.5 After the update is complete, restore the network information of the PC to its original value.
1.7. What Does Firmware Update Fail?
1.7.1.1. Firmware Update Does Not Complete Successfully
1.7.2.2. Formatting (initialization) is prompted ·Error message appears
1.7.3.3. Disk check does not stop after firmware update
1.8. When you want to recover data by removing the hard drive from the LinkStation
1.9. How to Prevent EM Mode from Occurring
1.9.1.1. Take regular backups
1.9.2.2. Utilize email notification function and receive error notification
1.9.3.3. Utilize regular hard drive disk checks (diagnostics)
1.9.4.4. Countermeasures against unexpected shutdowns such as power outages·UPS introduction
1.9.5.5. To prevent the effects of lightning strikes and equipment failure due to lightning
2. In the unlikely event that a device such as LinkStation is in EM mode,
What are the EM modes displayed on LinkStation and TerStation?
EM mode refers to a situation in which the NAS (Network Hard Drive) boot software is damaged and cannot boot properly, and the NAS cannot be accessed from a PC.When LinkStation or TerStation is in EM mode, Buffalo NAS boot software, and NAS Navigator 2 displays EM mode and disk space when you select the product icon such as LinkStation.EM mode stands for Emergency Mode, and some models may display ′standby mode′ instead of ′EM mode′.If you replace a computer with a computer, just as the operating system such as Windows is damaged and the computer does not boot, the NAS will be unable to boot.This condition is referred to as ′EM mode′, ′standby mode′, or ′recovery mode′, which causes problems such as not being able to access LinkStation or TerStation.
↓ If you do not have access to the LinkStation, please refer to this as well.
AT DATA RECOVERY MEDIUM
What Causes and How to Recover LinkStation Inaccessible?
https://www.adte.jp/rec/hdd/post-678/
Unable to access the LinkStation being used by the share.An error message appears.The shared folder is inaccessible.If you have trouble reading or writing a folder containing the saved data, don′t panic and check one by one.In the event of a LinkStation failure, repeated reboots and power-on cycles can worsen the failure.Here are some ways to solve equipment problems that contain important data.
EM Mode Display Example
EM and standby modes can be viewed in NAS Navigator 2, the management software of the Buffalo NAS.
·Example display on LS500 series
①A green or yellow ′?′ mark appears on the icon of a product such as LinkStation.
②When you click on the product icon, EM mode appears on the disk space (lower part of the screen).
③When I hover my mouse over the icon of the product, in addition to the name and IP address, I detected ′E04 firmware is damaged′ and ′EM mode′.US>Please perform a firmware update or contact the repair center.′
·Examples of display on other LinkStations
①Some LinkStation Names in NAS Navigator 2 Include EM Characters
②Click the product icon → EM mode or standby mode appears at the bottom of the screen.
③Sometimes the ′!′ mark appears on the icon instead of the ′?′ mark.
L When the word ′EM′ is displayed in the name of LinkStation or TerStation, the device is in ′recovery mode′, and in this state, it is often a symptom of not being able to access the file or read or write the file.
·Examples of display on the TerStation LCD panel
EMERGENCY MODE NO ARRAY INFO on the LCD panel for models with LCD panels installed in the TerStation body
You may also see .
What Causes EM Mode?
EM mode can occur due to the following reasons:
The hard drive inside the NAS, such as LinkStation, has failed or is about to break.
Power outages, sudden power outages, or lightning strikes while using the NAS
Failure of NAS body, damage to board and power supply parts
Firmware bugs and bugs
Incorrect cable insertion
1. If the hard drive inside the NAS, such as LinkStation, fails or is about to break.
A failed hard drive on a NAS, such as LinkStation or TerStation, can damage the NAS firmware and cause it to enter ′EM mode.′Alternatively, the condition of the hard drive may deteriorate, and it may lead to a sudden display of EM mode may suddenly be displayed.
2. If a power outage occurs while using the NAS, the power is suddenly turned off, or lightning strikes occur.
After a power outage or circuit breaker falls, the NAS firmware such as LinkStation and TerStation may be corrupted and lead to ′EM mode′ due to lightning strikes.In many cases, if you try to turn it back on after a sudden power outage other than a planned power outage or after moving, you will be in EM mode.A sudden shutdown can cause overcurrent and damage to the firmware.Also, be aware that if the NAS freezes or does not respond, it may go into ′EM mode′ after turning it off and on again.
↓If you are having trouble connecting to NAS such as LinkStation after the power outage, click here.
AT DATA RECOVERY MEDIUM
Learn how to avoid NAS connectivity or data loss after a power outage
https://www.adte.jp/rec/hdd/post-716/
It also explains how to deal with NAS (TeraStation, LinkStation, LANDISK, etc.) and server problems after a power outage, and also explains how to avoid losing important data on the NAS after a power outage.
3. Failure of NAS body, damage to board and power supply parts
For NASs that have been running for more than 5 years, ′EM mode′ can be caused by a failure of the unit, damage to the board and power supply parts.Even if you use it for a short period of time, you need to be careful because the parts inside may suddenly break down.
4. Firmware bugs and defects
A firmware bug or bug can cause ′EM mode′ and cause problems that prevent the NAS from booting.
5. Incorrect cable insertion
If you have multiple power cables, such as running multiple LinkStation and TerStation, be careful not to mis-insert the power cable.In some cases, plugging a cable with different power into a LinkStation may result in ′EM mode′ or prompt initialization.How to recover and work with LinkStation or TerStation in EM mode
When LinkStation or TerStation goes into EM mode or Standby mode, there are the following recovery and troubleshooting options:Each has its own advantages and disadvantages, so you need to be careful about what you do and what you do.If you don′t want to lose the data you have inside, or if you have any concerns or concerns, stop and talk to a professional data recovery company before proceeding.
perform a firmware update
Recover data by removing the hard drive from the NAS
in the event of difficulties in how to recover or deal with
1. Update the firmware
The firmware update must be done by connecting the NAS to the PC via a LAN cable.
merit
·If the firmware update is successful (if successful), it will return to the original device such as LinkStation ·Data will be restored.
disadvantage
·If the firmware update fails, there is a risk that all data stored in LinkStation and TerStation will disappear.
′·If you use a model that does not have a wired LAN terminal on a Windows or Mac PC, you will need to purchase a ′′LAN connection adapter (USB connection type)′ and prepare it separately.′
2. Recover data by removing the hard drive from the NAS
merit
·If the work is successful, the data contained in the NAS such as LinkStation and TerStation can be recovered and retrieved
disadvantage
·HDDs (HDDs configuring RAID) built into NAS such as LinkStation cannot be directly connected to personal computers, so there is more to worry about.
·It is difficult for individuals to deal with problems or problems with the HDD itself (to recover or repair the HDD, it is necessary to procure a dedicated environment such as a clean room, advanced technical capabilities, expertise, and compatible parts).
·There is a risk that the condition may deteriorate by continuing to energize, turning off the power, and restarting the hard drive itself when there is a problem.
·In the case of hard drives that have RAID built, the risk of increasing failures such as RAID configuration being broken or RAID collapse is increased by proceeding.
·If there are more than one HDD built into LinkStation or TerStation, it is difficult to handle.
·Depending on the type of HDD installed, it may be necessary to destroy the external case.
3. If you are worried about how to recover or deal with it,
If you have data backed up, or if the data in the LinkStation disappears, the device should be able to operate in good condition, and if you only want to repair the NAS,
1. How to update the firmware
For those who have not been able to back up their data, or who are in trouble if they lose their stored data,
2. How to recover data by removing the hard drive from the NAS
Consider doing .Either way, if you have any concerns or concerns, give priority to consulting a professional data recovery provider before proceeding.If you try not to get worse, you can avoid the risk of losing data.
↓If you have a problem with NAS such as LinkStation and are considering repairing it, click here.
AT DATA RECOVERY MEDIUM
Repair and recovery in the event of a NAS problem.
https://www.adte.jp/rec/hdd/post-1185/
In case of trouble such as inaccessible NAS or shared folder, NAS does not work, does not boot, does not turn on, etc., it is important to check where the failure occurred and to take correct action.Here are some of the things you should be careful about when you think of a NAS failure, how to deal with it, and the differences between manufacturer repair and data recovery.
What is a Firmware Update?
LinkStation and TerStation contain one to eight internal HDDs, and the information within each HDD is partitioned (separated area on recording media data).The hard drive partition has an OS and data section, and the firmware is stored in the OS section.Updating firmware refers to replacing the contents of the OS portion of the partition in the recording media with a newer version.
What to Do When Updating Firmware?
When LinkStation or TerStation is in EM mode, many people think that updating the firmware of the product will solve the problem and restore it.However, it is important to be aware that firmware updates may fail, or that updates may not recover.In addition, when there is a problem with LinkStation/TeraStation, such as EM mode, firmware updates can worsen the hard drive failure condition or make it difficult to recover.If the data stored in LinkStation or TerStation is important, or if you are worried that it might disappear, you should give priority to consulting a professional data recovery provider before proceeding.I want to avoid the consequences of working in a hurry and regretting it as much as possible.
How to Update Firmware
If you want to try a firmware update when LinkStation or TerStation is in EM mode, you need to proceed in the following order:
preliminary preparation
Download apps for updates from the software download service
expand the compressed file once downloaded
actual firmware update flow
1.Preparation
Firmware updates require installation of （ Windows PC (model with wired LAN) LAN LAN adapter (if Windows PC does not have wired LAN terminal) パソコン LAN cable to connect PC to LinkStation. NAS NAS Navigator 2 is installed.Let′s get ready.
2. Download applications for updates through the software download service
Open the product manufacturer site (the Buffalo site) in a web browser to download the software.*Let′s look for the LinkStation and TerStation models in the list.
You will see some downloadable software, so click LinkStation Series Firmware Update (Windows) to start the download.
3. Expand the compressed file once downloaded
After downloading the program for firmware updates, it is saved as a compressed file.Expand the compressed file, open the destination folder, and check for updates only (such as LSUpdater).ここ We will not run the application here yet.
4. Actual firmware update flow
The update process is as follows:
①Use NAS Navigator 2 to view network information (IP address and subnet mask) for LinkStation and/or TerStation and take notes of the content
②temporarily change network information on a personal computer
Windows Start Menu → Control Panel → Network and Sharing Center → Change Adapter Settings → Network Connection → Double-click the LAN connection that connects the PC to LinkStation or TerStation → LAN Connection Status → Click on Properties → Press Properties → Open Internet Protocol Version 4 (TCP/IPv4) → Take notes.IPYou do not need to take notes when the IP address is automatically obtained.In the case of the computer you use for business purposes, it often contains numbers, so be sure to take notes if there are numbers in the items.If the network information before the change is lost and the contents cannot be restored, the computer will not be connected to the network.Let′s be careful.
③temporarily change network information
Enter numbers on the Internet Protocol Version 4 (TCP/IPv4) screen based on the IP address and subnet mask of the LinkStation and TerStation that were previously examined using NAS Navigator 2.(*The opening method is the same as the flow of 2)
·IP address: LinkStation ·Enter the number at the end of the IP address of the TerStation as +1 or -1
·Subnet mask: Insert the numerical value of the checked subnet mask as it is
·Default gateway: Enter the same number as the IP address of the LinkStation/TerStation you checked.
ネットワーク After changing the network information, if you leave this screen open without closing it, you will not need to open it again after updating the firmware.④perform a firmware update
′Double-click on ′′LSUpdater′′ for updates only → Start a dedicated program → Verify that the device displayed in the upper left corner (LinkStation, TeraStation model number, etc.) is correct → Press ′′Update′′ button at the bottom → Update′ screen →′
⑤Restore the network information on your computer to its original value when the update is complete
③Display the LAN connection screen that was left open in step → Press the button on the property → Select Internet Protocol Version 4 (TCP/IPv4) as you did when you changed it → Click the button on the property → Replace the changed number with the original number → Press OK to close all screens → Work completed
What Does Firmware Update Fail?
In many cases, when equipment such as LinkStation or TeraStation goes into EM mode, attempts to update the firmware fail.If the update fails, there may be serious damage to the LinkStation/TeraStation unit or internal hard drive, or the condition may deteriorate due to the update, leading to the failure of the update.If the data stored in LinkStation or TerStation is important, or if there is a problem when it is lost, it is dangerous to proceed with the operation.Let′s give priority to consulting a professional restoration company if you have any concerns.
Firmware Update Does Not Complete Successfully
Formatting (initialization) is prompted ·Error message appears
Disk check does not stop after firmware update
US>1. Firmware update does not complete successfully
If you are experiencing problems such as firmware updates failing or not completing successfully after many attempts, stop working.It is very dangerous to try again and again.It can lead to deteriorating conditions and data loss.
2. Formatting (initialization) is prompted ·Error message appears
Do not press ′No′ to format or initialize any error messages that need to be formatted.If you press ′yes′ in a hurry, all the data will be erased.
3. Disk check does not stop after firmware update
Damage to non-firmware areas may result in disk checks running after the update and non-stop problems.Turn off the power immediately when the disk check does not stop working.If this disk check does not stop, not only will the check be completed no matter how long you wait, but the HDD will continue to be loaded, so there is a high risk of data loss and inability to retrieve it.If you feel that something is wrong, you should first contact the data recovery company immediately after turning off the power.
When you want to recover data by removing the hard drive from the linkstation,
If you want to recover your data by removing the hard drive from the LinkStation or TerStation, you can check the status by connecting the hard drive directly to your computer.However, even if you connect the hard drive taken from the NAS directly to the PC, the file format is different, so you cannot see the contents of the stored data such as folders and files.Be careful because you cannot access it.When a hard drive has a minor logical failure, recovery software can be used to recover, but it is difficult to determine the extent of the failure by individuals, and the condition often deteriorates due to the attempt of the recovery software.In addition, many of the hard drives in LinkStation and TerStation contain RAID information, making it difficult for individuals to respond if not only EM mode but also RAID information is corrupted or if the partition information is corrupted.If the hard drive itself is experiencing a physical failure, four essentials are required: a dedicated environment such as a clean room, advanced technical capabilities, access to compatible parts, and expertise.If you really want to take out your hard drive and restore it, consult a professional recovery company before proceeding.When you want to reduce the cost of recovery, it is often better to consult with them without losing data, and without regret.
↓ If you would like to retrieve data from your hard drive, please visit here.
AT DATA RECOVERY MEDIUM
What do I do when I want to retrieve data from a failed hard drive?
https://www.adte.jp/rec/hdd/post-1307/
Hard drives are the most prone to failure among server components such as personal computers and NAS.A hard drive is one of the recording media that stores important data, and if it is broken, data can be lost, so be careful when handling it.Here′s how to retrieve and troubleshoot data in the event of a hard drive failure.
How to Prevent EM Mode from Occurring
While it is not entirely possible to prevent LinkStation or TerStation from entering EM mode, a combination of several preventive measures can help you prepare for trouble.
back up regularly
Use email notification function and receive error notification
Utilize regular hard drive disk checks (diagnostics)
Countermeasures against unexpected shutdowns such as power outages ·Introduction of UPS
To prevent the effects of lightning strikes and equipment failure due to lightning
1. Back up regularly
Buffalo LinkStations and TerStations come standard with automatic and regular backups to other NASs and USB external HDDs.You need to set up a backup in advance, but make sure to set it up as the most important and most important preventive measure.However, it is important to be careful because there are many cases where some kind of problem occurs even when setting up the backup, such as the failure of the backup or the failure of the backup in the middle of the backup.Don′t worry too much that it′s okay because you′re setting it up, check your backup destination files regularly once a month and check your timestamp to see if you can get a backup.
2. Utilize email notification function and receive error notification
LinkStation and TerStation have the ability to automatically send emails and notify you of errors when something goes wrong or is about to go wrong.The email notification function also needs to be set up in advance, but it is one of the functions that should be set up to minimize damage in the event of trouble.
3. Utilize regular hard drive disk checks (diagnostics)
LinkStation and TerStation have the ability to diagnose drives, such as internal hard drives, and disk checks.In the event of a hard drive failure, this disk-checking feature can be used to repair any minor failures.However, it is safer to back up before performing a disk check before performing a disk check, as disk checks can lead to poor conditions and data loss in the event of a severe or physical failure of the hard drive failure.Regular checks can fix anomalies, which can also help prevent failures and serious errors such as EM mode.
4. Countermeasures against unexpected shutdowns such as power outages · Introduction of UPS
If you have an uninterruptible power supply (UPS) in place, you will be able to deal with unexpected power problems, even if there is a sudden power outage and the power is off, such as a LinkStation.Turning off the power is one of the most burdensome activities for equipment and hard drives.With UPS, power is not immediately cut off in the event of a power outage, helping prevent LinkStation failures and hard drive damage.If a power outage causes a sudden shutdown of a LinkStation, the firmware is often damaged, and power outages are often the trigger for an ′EM mode′ to occur.Also, since sudden power outages often cause internal HDD failures, one of the ways to avoid equipment problems is to install UPSs if the data stored in the LinkStation is important.
5. To prevent the effects of lightning strikes and equipment failure due to lightning
Lightning and lightning can also cause problems with LinkStation.The data stored in the LinkStation is important, and it is safer to turn off the power when the device is turned off or when a lightning warning is issued.Also, each manufacturer distributes power taps for lightning guards, so it′s better to prepare them.
In the unlikely event that a device such as LinkStation is in EM mode,
If you can′t improve the situation by trying what you can do when LinkStation or TerStation is in EM mode, or if you can′t retrieve or import data stored in LinkStation or TerStation, you should stop and talk to a data recovery provider.It is very dangerous to proceed with the work if the cause is unknown or you are worried about how to operate it.This is because if you continue to work on it, the condition may deteriorate to the point where you cannot recover the data.It′s important to contact a professional recovery company as soon as possible when you want to avoid the risk of data loss or reduce recovery costs.If you′re worried about which restoration company to consult, check whether you have AI or proprietary technology.You can see that it is a company with high technical capabilities.Advanced technology has AI technology and proprietary technology, and has a lot of experience in troubleshooting and recovering LinkStation and TerStation, helping to reduce recovery costs.If you are in trouble, why don′t you start with a free consultation?
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