Synology DS408 RAID5 crashed after a Read error

[CandymanLUX]

I am still running my DS-408 without any problems so far with the Maxtor 6B200M0 disks. I'm currently waiting for Seagate to send med the 1TB Barracuda ES.2 series disks as replacement. I also just bought a Squeesebox Duet that is fantastic product. It just works. Are you convinced it is the box and not the disc causing the problems?

Well I'm glad for you that it works but honestly I'm not shelling out that much money to feed it with 200GB discs . My DS209+ and my second DS408 just work flawlessly with the 1.5 TB Seagates. This DS408 already has the 7th!!! (yes seventh) disc and it keeps on crashing ... true less with the new firmware but still ... once a week is too much ... even once a month I would consider too much. Besides, the second DS408 is much more stressed than this on a daily base and never encountered any issue. The exchanged discs also work fine within the PC ... which leaves only the hardware left now ... due to the fact that I exchanged all of the discs already (1;2;3 and 4) and it's each time another one crashing (while using the same power and Sata cables all the time) ... so something hardware related I believe .

[hedbert]

Candyman-
How is the new firmware working? Last I heard it was working quite well.

I had half of the issue happen the other day. My music stopped playing and lost connection to the server. My DS408 was NON-RESPONSIVE so i pulled the power. When it came back up I DID NOT LOSE any of the drives. It was all working after it started back up.

[Zouk !]

 
May I ask to all if you finally consider that your problem are coming from NAS or ST31500341AS ? (or don't know ?)


Regards,
 Zouk !

[hedbert]

Well it happened to me again. Drive 3 crashed in the middle of this morning while I was not using it. The last 2 drive crashes have been drive 3. SO I am gonna have seagate replace drive 3.

[CandymanLUX]

Since I disabled Hibernation after my last crash from Sunday, the box has been fairly stable so far (touching wood) ...

[hedbert]

Since I disabled Hibernation after my last crash from Sunday, the box has been fairly stable so far (touching wood) ...

Did the Beta FW from Synology help the situation at all?

[hedbert]

There is now a class action lawsuit against seagate on these drives.
http://www.kbklawfirm.com/seagate/Seaga ... -drive.php

[hedbert]

Good news on the last day of the year .

I am happy to report that with Franklin's help, he managed to bring back my RAID5 (with the two failed discs) back to live and I have full access to my 2 TB of data again. This is really outstanding support from Synology and surely something which makes a difference especially compared to other NAS-selling companies out there.

Thanks Franklin & the Synology team and have a Happy New Year!

@ Franklin
Can you help me do this too? I am replacing my drives one at a time but my RAID just lost 2 drives.

[Franklin]

Greetings hedbert

Please create a support ticket and prepare your system for remote access (port 23, 5000) are needed. Our support staff will email the instructions for remote access.

Please note that the USA support office is moving to a new location, a response may be delayed.

Hope this helps

[hedbert]

Greetings hedbert

Please create a support ticket and prepare your system for remote access (port 23, 5000) are needed. Our support staff will email the instructions for remote access.

Please note that the USA support office is moving to a new location, a response may be delayed.

Hope this helps

Thank you! I have and I am awaiting a response. Everything is set up! I was able to access it from work today via Telnet and Web.

Thank you!

[lehalse]

Just to let you know. I received my disks from Seagate today and received the same type of drives ST31500341AS 1,5TB Drives. I had an agreement with the support that they should return 1TB ES drives. My Maxtor 6B200M0 has in the meantime running for a month without any issues. I am not really motivated to mount the 1,5TB drives at all in the DS408 box. The only difference this time is that they all came with CC1H firmware and not SD1A as I had previously. Is there anyone running ST31500341AS with CC1H firmware without reliability issues?

[hedbert]

Just to let you know. I received my disks from Seagate today and received the same type of drives ST31500341AS 1,5TB Drives. I had an agreement with the support that they should return 1TB ES drives. My Maxtor 6B200M0 has in the meantime running for a month without any issues. I am not really motivated to mount the 1,5TB drives at all in the DS408 box. The only difference this time is that they all came with CC1H firmware and not SD1A as I had previously. Is there anyone running ST31500341AS with CC1H firmware without reliability issues?

I have heard that the CC1H drives are good to go! Now I just got 3 replacement drives with FW SD19!! SOOO PISSED! I am on the phone holding for someone at Seagate now! The CC1H drives have a different part number. So I am going to request that specific part number!

[tstn6]

Hi,

It's been some months since any activity on this post... so I'm not sure if anyone is still checking, or if the latest status is more promising.

I'm having the same problem as reported in this post by Candyman, also with the Seagate ST31500341AS 1,5TB Drives (firmware CC1H) on the DS408, configured as a RAID5 array of 3x1.5Tb.

One of the disks would report read errors and drop out of the RAID5 array, anywhere from after a day up to a week.
Even after replacing the initial "failed" disk (Seagate support responded the CC1H firmware was correct), the same problem with a disk dropping out of the RAID array happened again within a week. Actually, the disk not only dropped from the RAID array, but the DS408 Web UI reported the disk was not connected to the NAS - sometimes after a reboot of the DS408 it would show again.
In the meantime I plugged the failed disk into a PC and ran the Seagate utility "Seatools for Windows" to check for faults, but none were reported.
So far, 3 of the 4 Seagate 1.5Tb disks have dropped out of the RAID5 array after the DS408 reports many read errors for that disk (in the system logs).

After some investigations I found the procedure on the Synology site, which details how to correctly prepare disks for RAID, and I started to follow this (http://forum.synology.com/wiki/index.php/How_to_prepare_a_Hard_Disk_whilst_installed_in_a_Synology_NAS). Unfortunately, during this process, another disk dropped out of the RAID array and the volume went to status "Crashed", consequently losing all data on the volume. Interestingly the 2nd disk that failed had already been through the disk preparation process and was previously successfully used to rebuild the RAID5 array.

I'm not sure if the problem is related to the DS408, or the Seagate 1.5Tb disks. I also read on this forum (http://forum.synology.com/enu/viewtopic.php?p=59755&sid=cbb21c6932bae10a89e2e0d6ca213f42#p60057, http://forum.synology.com/enu/viewtopic.php?f=7&t=10599&start=15) multiple people reported that faulty SATA cables were provided with the NAS, causing similar issues. Surely 3 of the 4 SATA cables provided aren't faulty in my DS408... I can't fail the Seagates on thier own so have no valid reason to return them.


Has anyone had a stable system running using these Seagate 1.5Tb drives in RAID5 on a Synology NAS? Or even non RAID?

I've spent so much time and money on this, along with some lost data, I feel I've bought a real dud, either the DS408 or the Seagate disks... it hasn't served it's purpose at all and has only been a counter-productive exercise so far.


Thanks in advance for any reply...

[tstn6]

Hi,

It's been some months since any activity on this post... so I'm not sure if anyone is still checking, or if the latest status is more promising.

I'm having the same problem as reported in this post, also with the Seagate ST31500341AS 1,5TB Drives with firmware CC1H on the DS408, configured as a RAID5 array of 3x1.5Tb.

One of the disks would report read errors and drop out of the RAID5 array, anywhere from after a day up to a week.
Even after replacing the initial "failed" disk (Seagate support responded that CC1H firmware was correct), the same problem with a disk dropping out of the RAID array happened again within a week. Actually, the disk not only dropped from the RAID array, but the DS408 Web UI reported the disk was not connected to the NAS - sometimes after a reboot of the DS408 it would show again.
In the meantime I plugged the failed disk into a PC and ran the Seagate utility "Seatools for Windows" to check for faults, but none were reported.
So far, 3 of the 4 Seagate 1.5Tb disks have dropped out of the RAID5 array after the DS408 reports many read errors for that disk (in the system logs).

After some investigations I found the procedure on the Synology site, which details how to correctly prepare disks for RAID, and I started to follow this (http://forum.synology.com/wiki/index.php/How_to_prepare_a_Hard_Disk_whilst_installed_in_a_Synology_NAS). Unfortunately, during this process, another disk dropped out of the RAID array and the volume went to status "Crashed", consequently losing all data on the volume. Interestingly the 2nd disk that failed had already been through the disk preparation process and was previously successfully used to rebuild the RAID5 array.

I'm not sure if the problem is related to the DS408, or the Seagate 1.5Tb drives. I also read on this forum (e.g. http://forum.synology.com/enu/viewtopic.php?p=59755&sid=cbb21c6932bae10a89e2e0d6ca213f42#p60057) people reported that faulty SATA cables were provided with the NAS, causing RAID instability issues. But surely 3 of the 4 SATA cables provided with my DS408 wouldn't be faulty...


Has anyone had a stable system running using these Seagate 1.5Tb drives in RAID5 on a Synology NAS? Or even non RAID?


Thanks...

[sangk]

HI tstn6,

I would recommend submitting a kernel to Synology support staff for review to investigate further on your issue. Link is in my signature.

Thanks,