Hard drive failure in mirror set

T

tk

I have a Window 2000 server with 2 IDE drives that are mirrored. When I
open disk management they both have a status of online (errors). When I
checked the event log I found Event ID 2, dmboot: Volume Volume1 (C:)
started in failed redundancy mode. Is this telling me one of my drives have
failed? If so, how can I tell which one?

Thanks
 
R

Richard G. Harper

Yep, that's what it's telling you. If your drive mirror is on a hardware
controller its utilities or BIOS setup should be able to identify the failed
drive. If the drive mirror is a software mirror you will need to use drive
diagnostic software from the drive manufacturer to see which drive is
defective.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
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K

Kurt

And unfortunately, no matter which drive is bad, if the data corruption has
been replicated to both, you may have data loss. You definitely need to run
whatever utilities are required to identify the failing drive, ghost the
good one, break the mirror, replace the drive (or both of them if they are
inexpensive IDEs), and don't overwrite last weeks backups just yet!

....kurt

Richard G. Harper said:
Yep, that's what it's telling you. If your drive mirror is on a hardware
controller its utilities or BIOS setup should be able to identify the
failed drive. If the drive mirror is a software mirror you will need to
use drive diagnostic software from the drive manufacturer to see which
drive is defective.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


tk said:
I have a Window 2000 server with 2 IDE drives that are mirrored. When I
open disk management they both have a status of online (errors). When I
checked the event log I found Event ID 2, dmboot: Volume Volume1 (C:)
started in failed redundancy mode. Is this telling me one of my drives
have
failed? If so, how can I tell which one?

Thanks
 
K

Kurt

As a side note, I've had so many failures of 2-drive redundant setups
(RAID-1) where data was corrupt on both drives that I've started keeping a
3rd drive, mounted and cold. When ever there's a major change (add software,
add users, etc) I break the mirror and ghost the main drive. Then if either
or both drives fail I can just unplug the old drives, plug in the ghosted
one and a new one, restore last nights backup and re-create the mirror. Of
course if you have a large dynamic network, this won't work. But for small
offices with little turnover - it makes you a hero.

....kurt

Richard G. Harper said:
Yep, that's what it's telling you. If your drive mirror is on a hardware
controller its utilities or BIOS setup should be able to identify the
failed drive. If the drive mirror is a software mirror you will need to
use drive diagnostic software from the drive manufacturer to see which
drive is defective.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


tk said:
I have a Window 2000 server with 2 IDE drives that are mirrored. When I
open disk management they both have a status of online (errors). When I
checked the event log I found Event ID 2, dmboot: Volume Volume1 (C:)
started in failed redundancy mode. Is this telling me one of my drives
have
failed? If so, how can I tell which one?

Thanks
 

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