Post by ursus on May 24, 2011 13:45:40 GMT 7
Hi all,
I was running my N5200 (not PRO) happily with two 500GB WD RE2 WD5000YS disks as RAID 1 (currently about 90% of the available space used) and FW (firmware) 2.00.12 until yesterday. Then it happened!
The N5200 started to respond slowly to file access. About the same time it started to continuously beep. On the LCD it stated "DISK INFO: [X0___]" and "R[1-2]: Degraded". There were two error messages sent to me:
Em206E event (warning level) occurred
The system MyNAS001 is suffering from disk problem.
RAID is endangered. However, the data access is still functional.
Please solve the disk problem (e.g. replacing with a new hard disk).
The system will bring RAID back to the healthy state automatically.
Em208E event (warning level) occurred
Hard Disk 1 on MyNAS001 has an I/O error.
This hard disk might have bad sectors on it.
Please replace the hard disk as soon as possible.
The WebGUI shows "Reallocated Sector Count" 209 on disk 1. Disk 2 has 0.
As I tend to turn of the system when supposed to not using it for more than a day, the disks had only about 6900 working hours. WD states MTBF of 1’200’000 hours.
What I did since yesterday:
- Full backup of all data.
- Get my cold spare disk (same model, brandnew) out of my attic.
I see two options for me:
1) Fix it by just installing the cold spare disk and continue working as normal but stay limited to only about 45GB free space which is not a good prospect for the (near) future.
2) Fix it by investing some cash for 3 new 500GB disks (quite cheap those days), investing some time for a) FW Upgrade, b) building a new (empty) RAID 5 with those 5 disks (two "old" ones, three new ones), restoring data from backup. This will take some hours/days I guess but in the end I would have plenty of space for the future.
As I was not in this forum for years, nor visited Thecus websites while my N5200 was running fine I have to raise some questions (some due to confusion about FW, some to get advise):
1) Why the hell disk 1 died after so "many" hours?
Is bay 1 (the one on the top) known for heating problems?
2) Are WD’s RE4 disks (WD5003ABYX) any good?
Does N5200 support those?
Any specific FW needed for those?
3) Is RAID 5 on the N5200 any good or should I stay with RAID 1 (stability, reliability, performance)?
I could buy two 1TB disks instead of three 500GB for about the same price and build a new RAID 1 with them.
4) Which FW should I upgrade to (currently in use is 2.00.12)?
Is 2.00.18.4 any good?, the latest?
What about 2.01.XX and 3.XX.XX?
5) What about software modules and FW versions (>2.00.12)?
Which FW version is most compatible to available modules?
Is there any clash?
Suggestions?
Many Thanks for any help!
Cheers, Urs (from Switzerland)
BTW: I use mixed clients (WinXP, Vista, Win7) to access the data on the NAS.
I was running my N5200 (not PRO) happily with two 500GB WD RE2 WD5000YS disks as RAID 1 (currently about 90% of the available space used) and FW (firmware) 2.00.12 until yesterday. Then it happened!
The N5200 started to respond slowly to file access. About the same time it started to continuously beep. On the LCD it stated "DISK INFO: [X0___]" and "R[1-2]: Degraded". There were two error messages sent to me:
Em206E event (warning level) occurred
The system MyNAS001 is suffering from disk problem.
RAID is endangered. However, the data access is still functional.
Please solve the disk problem (e.g. replacing with a new hard disk).
The system will bring RAID back to the healthy state automatically.
Em208E event (warning level) occurred
Hard Disk 1 on MyNAS001 has an I/O error.
This hard disk might have bad sectors on it.
Please replace the hard disk as soon as possible.
The WebGUI shows "Reallocated Sector Count" 209 on disk 1. Disk 2 has 0.
As I tend to turn of the system when supposed to not using it for more than a day, the disks had only about 6900 working hours. WD states MTBF of 1’200’000 hours.
What I did since yesterday:
- Full backup of all data.
- Get my cold spare disk (same model, brandnew) out of my attic.
I see two options for me:
1) Fix it by just installing the cold spare disk and continue working as normal but stay limited to only about 45GB free space which is not a good prospect for the (near) future.
2) Fix it by investing some cash for 3 new 500GB disks (quite cheap those days), investing some time for a) FW Upgrade, b) building a new (empty) RAID 5 with those 5 disks (two "old" ones, three new ones), restoring data from backup. This will take some hours/days I guess but in the end I would have plenty of space for the future.
As I was not in this forum for years, nor visited Thecus websites while my N5200 was running fine I have to raise some questions (some due to confusion about FW, some to get advise):
1) Why the hell disk 1 died after so "many" hours?
Is bay 1 (the one on the top) known for heating problems?
2) Are WD’s RE4 disks (WD5003ABYX) any good?
Does N5200 support those?
Any specific FW needed for those?
3) Is RAID 5 on the N5200 any good or should I stay with RAID 1 (stability, reliability, performance)?
I could buy two 1TB disks instead of three 500GB for about the same price and build a new RAID 1 with them.
4) Which FW should I upgrade to (currently in use is 2.00.12)?
Is 2.00.18.4 any good?, the latest?
What about 2.01.XX and 3.XX.XX?
5) What about software modules and FW versions (>2.00.12)?
Which FW version is most compatible to available modules?
Is there any clash?
Suggestions?
Many Thanks for any help!
Cheers, Urs (from Switzerland)
BTW: I use mixed clients (WinXP, Vista, Win7) to access the data on the NAS.