Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: RAID5 multi disk failure
Top Forums UNIX for Advanced & Expert Users RAID5 multi disk failure Post 302593073 by chebarbudo on Wednesday 25th of January 2012 02:18:31 PM
Old 01-25-2012
OK, thanks to your pieces of advice, I went a little further :
I can tell that two of my 4 disks are removed from the array.
Code:
# mdadm --examine /dev/sda10 | grep 'Update Time'
    Update Time : Sun Jun  5 16:00:41 2011
# mdadm --examine /dev/sdb10 | grep 'Update Time'
    Update Time : Mon Jan 23 12:05:02 2012
# mdadm --examine /dev/sdc10 | grep 'Update Time'
    Update Time : Fri Jan 20 23:16:43 2012
# mdadm --examine /dev/sdd10 | grep 'Update Time'
    Update Time : Mon Jan 23 12:05:02 2012

One failed in june 2011, the second one failed 5 days ago.
I thought that RAID5 would turn read only as soon as one disk fails.
Does anyone knows more?
Please let's not discuss how crazy it is to have let my RAID5 run with one disk removed during 6 month. I didn't know what SMART was before now (belive me I'm reading the manual).

For more information, here is the status of the array
Code:
# mdadm --examine /dev/sdb10 | tail -6
this     1       8       26        1      active sync   /dev/sdb10

   0     0       0        0        0      removed
   1     1       8       26        1      active sync   /dev/sdb10
   2     2       0        0        2      faulty removed
   3     3       8       58        3      active sync   /dev/sdd10

Is there any chance I can resync 2 disks out of 4?

Any help will be appreciated.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Disk failure

is there anu way by which i can find out if all the disks on the system are working ? Milind Shauche. (2 Replies)
Discussion started by: shauche
2 Replies

2. HP-UX

Disk Failure

I am new to being a Unix admin and have a question about replacing some hardware. I have a K class box using HP-UX 10.20 with three disks. Two of the drives are in one logical volume. Every 3 or 4 days, the syslog is showing that one of these drives is experiencing "POWERFAILED" and then recovering... (6 Replies)
Discussion started by: SemiOfCol
6 Replies

3. SCO

Raid5 Failure

Forgive me, I do not know much about RAID so I'm going to be as detailed as possible. This morning, our server's alarm was going. I found that one of our drives have failed. (we have 3) It is an Adaptec ATA RAID 2400A controller I'm purchasing a new SCSI drive today. My questions: ... (2 Replies)
Discussion started by: gseyforth
2 Replies

4. Filesystems, Disks and Memory

Looking for a solution to disk failure!

Hi people, I have been using my disk for quite a long time but the other day I heard the drive making some noise and had to restart the system again. But when I did that the disk would not boot and I fear that the data might be deleted or lost. So, if you people have any know about the ways to get... (1 Reply)
Discussion started by: adam466
1 Replies

5. Filesystems, Disks and Memory

Looking for a solution to disk failure!

Hi people, I have been using my disk for quite a long time but the other day I heard the drive making some noise and had to restart the system again. But when I did that the disk would not boot and I fear that the data might be deleted or lost. So, if you people have any know about the ways to... (2 Replies)
Discussion started by: christopher4
2 Replies

6. Solaris

SAN disk failure

hi all, have a solaris 9 OS and a SAN disk which used to work fine is not getting picked up by my machine. can anyone point out things to check in order to troubleshoot this ?? thanks in advance. (3 Replies)
Discussion started by: cesarNZ
3 Replies

7. Solaris

Configure disk array in RAID5 and create file system

I'm new to forums, it's my first time posting. I have a sun v490 server. I just installed solaris 10.6, on the local drives. I'm being asked to do the following: For Oracle install I need “oracle” user that belong to “dba” and “oinstall” groups. File system /u01/app/oracle, 10GB (if... (6 Replies)
Discussion started by: Kjons76
6 Replies

8. Red Hat

How to monitor HP server hard disk failure ?

in red hat 4, 5 any one know any commands or any scritps to monitor HP DL 380 G5/6 server and trigger alarm when hard disk failed. thanks for all support ---------- Post updated at 02:45 PM ---------- Previous update was at 12:00 PM ---------- does HP ProLiant Support Pack support is... (4 Replies)
Discussion started by: maxlee24
4 Replies

9. Solaris

Poor disk performance however no sign of failure

Hello guys, I have two servers performing the same disk operations. I believe one server is having a disk's impending failure however I have no hard evidence to prove it. This is a pair of Netra 210's with 2 drives in a hardware raid mirror (LSI raid controller). While performing intensive... (4 Replies)
Discussion started by: s ladd
4 Replies

10. AIX

AIX hard disk failure

Hi all, I have encountered the issue with the hard disk, the disk is failed and need to replace by the new one. As my understanding, this is just to take out the failed disk and insert the new ones, and that's all. But the third party hardware vendor said, there should be another procedure... (9 Replies)
Discussion started by: Phat
9 Replies

LEARN ABOUT DEBIAN

time.gmtime

Time.gmTime(3kaya)					       Kaya module reference						Time.gmTime(3kaya)

NAME

       Time::gmTime - Convert a time to GMT.

SYNOPSIS

       Time gmTime( Int secs=now() )

ARGUMENTS

       secs The number of seconds since Jan 1 1970. This argument is optional and defaults to the current time.

DESCRIPTION

       Converts a time expressed in seconds since Jan 1 1970 to a Time.Time(3kaya) , using the GMT timezone.

AUTHORS

       Kaya standard library by Edwin Brady, Chris Morris and others (kaya@kayalang.org). For further information see http://kayalang.org/

LICENSE

       The  Kaya  standard  library  is  free  software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
       License (version 2.1 or any later version) as published by the Free Software Foundation.

RELATED

       Time.Time(3kaya)
       Time.localTime(3kaya)
       Time.mkTime(3kaya)
       Time.time(3kaya)

Kaya								   October 2012 						Time.gmTime(3kaya)
All times are GMT -4. The time now is 11:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy