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тАО06-10-2007 11:21 PM
тАО06-10-2007 11:21 PM
Fail event on /dev/md1
Hi,
Je receive a mdadm deamon mail with this text:
"A Fail event had been detected on md device /dev/md1."
And in log file from kernel :
WARNING: Kernel Errors Present
Info fld=0x2acc396, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x49c3ed1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5925fb1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5c82101, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x6967dd9, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0xb0e6ec, Current sde: sense key Medium Error...: 1 Time(s)
end_request: I/O error, dev sde, sector...: 1 Time(s)
What's it? Am I losing the hards disks?
Regards,
C.L.
*********
Bonjour,
Je viens de recevoir du deamon mdadm le message suivant :
"A Fail event had been detected on md device /dev/md1."
et r├йguli├иrement, j'ai les messages suivants :
WARNING: Kernel Errors Present
Info fld=0x2acc396, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x49c3ed1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5925fb1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5c82101, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x6967dd9, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0xb0e6ec, Current sde: sense key Medium Error...: 1 Time(s)
end_request: I/O error, dev sde, sector...: 1 Time(s)
Qu'est ce que cela signifie? suis en train de perdre les disques?
Cordialement,
C.L.
Je receive a mdadm deamon mail with this text:
"A Fail event had been detected on md device /dev/md1."
And in log file from kernel :
WARNING: Kernel Errors Present
Info fld=0x2acc396, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x49c3ed1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5925fb1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5c82101, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x6967dd9, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0xb0e6ec, Current sde: sense key Medium Error...: 1 Time(s)
end_request: I/O error, dev sde, sector...: 1 Time(s)
What's it? Am I losing the hards disks?
Regards,
C.L.
*********
Bonjour,
Je viens de recevoir du deamon mdadm le message suivant :
"A Fail event had been detected on md device /dev/md1."
et r├йguli├иrement, j'ai les messages suivants :
WARNING: Kernel Errors Present
Info fld=0x2acc396, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x49c3ed1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5925fb1, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x5c82101, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0x6967dd9, Current sde: sense key Recovered Error...: 1 Time(s)
Info fld=0xb0e6ec, Current sde: sense key Medium Error...: 1 Time(s)
end_request: I/O error, dev sde, sector...: 1 Time(s)
Qu'est ce que cela signifie? suis en train de perdre les disques?
Cordialement,
C.L.
3 REPLIES 3
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тАО06-11-2007 12:27 AM
тАО06-11-2007 12:27 AM
Re: Fail event on /dev/md1
Shalom,
You definitely have a bad sector and should plan on the replacement of the disk that contains /dev/md1
SEP
You definitely have a bad sector and should plan on the replacement of the disk that contains /dev/md1
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО06-11-2007 12:36 AM
тАО06-11-2007 12:36 AM
Re: Fail event on /dev/md1
Thx,
And for sde??? It's the same thing?
C.L
And for sde??? It's the same thing?
C.L
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тАО06-11-2007 07:56 AM
тАО06-11-2007 07:56 AM
Re: Fail event on /dev/md1
The md devices are "Multiple Disks", i.e. software RAID devices. They act as containers for the physical disks in RAID or multipath configurations.
For example, if your /dev/md1 is configured to RAID1 (=mirroring) mode, you'll find the /dev/md1 device "contains" /dev/sde and at least one other /dev/sd* disk device.
The simplest way to view your /dev/md* configuration is to run "cat /dev/mdstat".
The kernel shows error messages because the actual disk device /dev/sde is failing. The mdadm daemon has noticed the failing /dev/sde belongs to /dev/md1.
In RAID1 or RAID5 configurations, the warning from mdadm is useful because a single failing disk does not cause any immediate problems. But if a second disk from the same RAID set fails, you will lose data: in this case, the message from mdadm means you're no longer protected against another disk failure.
So you should replace the failing /dev/sde and then re-sync the RAID set. If you don't know how to do this, google for Linux Software-RAID HOWTO.
If you have a RAID0 configuration (to increase performance, not reliability), you may have already lost some data. If you don't have your backups up to date, back up anything important on the disks *now*!!!
MK
For example, if your /dev/md1 is configured to RAID1 (=mirroring) mode, you'll find the /dev/md1 device "contains" /dev/sde and at least one other /dev/sd* disk device.
The simplest way to view your /dev/md* configuration is to run "cat /dev/mdstat".
The kernel shows error messages because the actual disk device /dev/sde is failing. The mdadm daemon has noticed the failing /dev/sde belongs to /dev/md1.
In RAID1 or RAID5 configurations, the warning from mdadm is useful because a single failing disk does not cause any immediate problems. But if a second disk from the same RAID set fails, you will lose data: in this case, the message from mdadm means you're no longer protected against another disk failure.
So you should replace the failing /dev/sde and then re-sync the RAID set. If you don't know how to do this, google for Linux Software-RAID HOWTO.
If you have a RAID0 configuration (to increase performance, not reliability), you may have already lost some data. If you don't have your backups up to date, back up anything important on the disks *now*!!!
MK
MK
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