Solved

ReadyNAS multiple disk faluire

Posted on 2012-12-22
3
908 Views
Last Modified: 2012-12-23
I have a ReadyNAS Pro Business Edition with six Seagate ST32000542AS 2T drives, set up in RAID Level 5.  About a month ago, I discovered that disk 1 was reported as failed, and the ReadyNAS genereate the message "Detected increasing command timeouts [65537] on disk 1 ... This often indicates an impdneing failure. ...".  I rebooted and the ReadyNAS resynched, and no longer reported disk 1 as a problem.  Then ten days ago, I got the same message for disk 6.  I again rebooted, the ReadyNAS resynched and no longer reported disk 6 as a problem.

And now, I have the same problem reported on disk 2.  It is currently resynching.  

It seems strange to me to get reported failures on different disks.  Each disk was placed in service in September 2010, and the ReadyNAS is used in my nome.  The disks still have almost a year of warranty left.

I am wondering if this is just a case of the disks reaching the end of their lives, or is the ReadyNAS experiencing problems itself?

Thank you.
0
Comment
Question by:ShrimperEd
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 10

Expert Comment

by:Gajendra Rathod
ID: 38716654
Please update the firmware of RAID controller card and hard disk.

Please take the full backup before firmware update.
0
 
LVL 17

Expert Comment

by:Chris Millard
ID: 38716658
I've had similar experiences with a QNAP NAS device with disks in a RAID 5 - The disks are only 3 or 4 months old at the moment. I had one showing as failed - I ran a full surface scan and it came back online without any further problem. The same then occurred on another drive - again I ran a surface scan and it came back online.

I've had no further problems since, and the S.M.A.R.T. all shows fine on these drives.

I wouldn't necessarily think that it means the drives are about to fail, but I would (as mentioned above) ensure that you have the most up to date firmware, and make sure that the NAS box is configured to alert you if anything happens.

And I guess, keeping a spare drive to hand wouldn't be a bad thing either!

One other thing - don't rely on your NAS unit being your only backup of data!
0
 
LVL 47

Accepted Solution

by:
David earned 500 total points
ID: 38716711
Those disks are totally unacceptable for RAID5 use.  They are cheap desktop drives and will lock up for 30+ seconds when trying to do bad block recovery.  If you are going to do RAID5, then you need to get ENTERPRISE class drives ... period.

If you insist having these drives then the only thing you can do is move to a RAID10 config.  This will be more tolerant of error timeouts because all your data will be on two disks at once, so the firmware will grab the data it needs from the mirror or a disk that is timing out, are likelihood that it will fail a disk is much lower.

S.M.A.R.T. WILL show all disks are fine .. because the disks ARE OK.   It is an issue of suitability for use, and operational characteristics, not that the disks are bad.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

this article is a guided solution for most of the common server issues in server hardware tasks we are facing in our routine job works. the topics in the following article covered are, 1) dell hardware raidlevel (Perc) 2) adding HDD 3) how t…
Learn about cloud computing and its benefits for small business owners.
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

632 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question