SmallNetBuilder Forums
Go Back   SmallNetBuilder Forums > NAS > General NAS Discussion

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-26-2013, 07:02 AM
dotdavid dotdavid is offline
New Member
 
Join Date: Feb 2013
Posts: 5
Thanks: 2
Thanked 0 Times in 0 Posts
dotdavid is just starting out
Unhappy Zyxel NSA-221 RAID1 Degraded

I have had a NSA-221 for a while now running 2x 250GB drives in a RAID1 array with no problems on firmware 4.40. I recently upgraded to a pair of 3TB Seagate ST3000DM001 drives and for a few days after installation things were fine. However after those few days the NAS became unresponsive (couldn't log into web UI or access SMB shares) so I rebooted it. After the reboot the RAID array was reported as being degraded. Both disks are reported as "healthy" in the SMART software add-on however.

I attempted to repair the RAID array but it gave me an error saying something along the lines of the second hard drive must be equal or greater in size to the first hard drive. I tried the "failed" drive in a Ubuntu VM and the data appeared to be there, so I wiped all the partitions, rebuilt the RAID volume and restored from a backup.

However three or four days after doing this the RAID array failed again, with the same symptoms.

My question is; is this symptomatic of a hard drive failure (considering the healthy SMART status and fact I can read the drive's data in Ubuntu) or is it just buggy RAID software in the NAS? I would ordinarily blame the drive, but the NAS *is* extraordinarily buggy so I don't really trust it not to waste my time.

Are there any good tools that would diagnose a drive failure - I was thinking of using Seagate's SeaTools with the drive in a USB disk caddy but wonder if it would get confused with the filesystem on the drive considering it's for Windows/DOS only.

Any advice gratefully received...
Reply With Quote
  #2  
Old 02-26-2013, 03:05 PM
tipstir tipstir is offline
Very Senior Member
 
Join Date: Aug 2008
Location: South Florida
Posts: 1,627
Thanks: 0
Thanked 35 Times in 35 Posts
tipstir is just starting out
Send a message via AIM to tipstir Send a message via Yahoo to tipstir Send a message via Skype™ to tipstir
Default

Quote:
Originally Posted by dotdavid View Post
I have had a NSA-221 for a while now running 2x 250GB drives in a RAID1 array with no problems on firmware 4.40. I recently upgraded to a pair of 3TB Seagate ST3000DM001 drives and for a few days after installation things were fine. However after those few days the NAS became unresponsive (couldn't log into web UI or access SMB shares) so I rebooted it. After the reboot the RAID array was reported as being degraded. Both disks are reported as "healthy" in the SMART software add-on however.

I attempted to repair the RAID array but it gave me an error saying something along the lines of the second hard drive must be equal or greater in size to the first hard drive. I tried the "failed" drive in a Ubuntu VM and the data appeared to be there, so I wiped all the partitions, rebuilt the RAID volume and restored from a backup.

However three or four days after doing this the RAID array failed again, with the same symptoms.

My question is; is this symptomatic of a hard drive failure (considering the healthy SMART status and fact I can read the drive's data in Ubuntu) or is it just buggy RAID software in the NAS? I would ordinarily blame the drive, but the NAS *is* extraordinarily buggy so I don't really trust it not to waste my time.

Are there any good tools that would diagnose a drive failure - I was thinking of using Seagate's SeaTools with the drive in a USB disk caddy but wonder if it would get confused with the filesystem on the drive considering it's for Windows/DOS only.

Any advice gratefully received...

How do you know it's the NSA which you did say was working fine. Are you use the firmware update supports 3Tb..
Reply With Quote
  #3  
Old 02-26-2013, 03:33 PM
dotdavid dotdavid is offline
New Member
 
Join Date: Feb 2013
Posts: 5
Thanks: 2
Thanked 0 Times in 0 Posts
dotdavid is just starting out
Default

Quote:
Originally Posted by tipstir View Post
How do you know it's the NSA which you did say was working fine. Are you use the firmware update supports 3Tb..
Hi, I'm definitely on the 3TB-supporting firmware, but some people I've been speaking to say it might be something to do with the RAID implementation and/or XFS file system. I'm going to try it with a JBOD configuration using one drive as master and backing up regularly to the other drive, to see if that is any more stable.
Reply With Quote
Reply

Tags
degraded, failure, nsa221, raid, zyxel

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 03:07 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  437
azazel1024  125
john9527  97
L&LD  95
htismaqe  81
ColinTaylor  70
stevech  65
hggomes  64
sfx2000  58
Anzaia  50
RMerlin  6273
john9527  447
stevech  352
ryzhov_al  289
TeHashX  252
L&LD  242
RogerSC  202
sinshiva  146
sfx2000  136
joegreat  127
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  46990
Old RT-AC68 -...  22233
Old RT-AC68P...  7022
Old Moderate Nat...  4676
Old ASUS RT-N66U...  4238
Old iOS 8.1...  3969
Old RT-AC87U -...  2433
Old WiFi...  2422
Old RT-AC68P QOS...  1964
Old AC68U,...  1747
Old Asuswrt-Merli...  215
Old RT-AC68 -...  137
Old Review: 24...  35
Old iOS 8.1...  33
Old RT-AC68P...  33
Old Moderate Nat...  29
Old WiFi...  27
Old RT-AC87U -...  26
Old RT-AC68P QOS...  24
Old How to flash...  24


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
© 2006-2014 Pudai LLC All Rights Reserved.