LinuxQuestions.org
Did you know LQ has a Linux Hardware Compatibility List?
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Server
User Name
Password
Linux - Server This forum is for the discussion of Linux Software used in a server related context.

Notices



Reply
 
Search this Thread
Old 04-29-2008, 06:42 AM   #1
elpresidente44
LQ Newbie
 
Registered: Apr 2008
Posts: 1

Rep: Reputation: 0
Unhappy mdadm raid 5 and failing drive doesn't drop out of array


i'm running a raid 5 array set up with mdadm on my fileserver. when one of the drives began to log uncorrectable sector errors, and reads were failing (burning programs would fail on some images on the disk, video was corrupted) the drive didn't drop out of the array. this brings to mind some questions i can't find the answers to:

- why didnt the drive drop out of the array?
- why doesn't the array use the parity to pass along good data to the reading applications instead of letting reads time out (?) or sending corrupted data? (when i manually failed the drive, good data came out of the degraded array, as i suppose you'd expect)

thanks in advance,
jonathan

Last edited by elpresidente44; 04-29-2008 at 08:10 AM.
 
Old 05-24-2008, 08:38 PM   #2
rtspitz
Member
 
Registered: Jan 2005
Location: germany
Distribution: suse, opensuse, debian, others for testing
Posts: 307

Rep: Reputation: 32
hmmm, what do the logfiles say ?

maybe:

kernel: raid5:md0: read error corrected..........


I think disks only drop out of the array, if the whole device fails (is gone).
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I need help on repairing a mdadm raid 5 array compgeek50 Linux - Hardware 0 02-24-2008 09:06 AM
remount RAID drive after reboot with mdadm ufmale Linux - Software 1 11-15-2007 09:13 PM
Recovering a Raid 5 array, mdadm mess-up somebox Linux - Server 4 10-17-2007 07:57 PM
mdadm: re-assembling raid array on new installation hamish Linux - Server 3 06-10-2007 03:23 PM
using mdadm to grow an existing RAID 1 array kevburger Linux - Hardware 1 08-18-2005 09:17 AM


All times are GMT -5. The time now is 10:53 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration