Urgent - Please help

[Muhammad T. ALam]

Hi,

We have a server with external SCSI storage (RAID). We have three logical
with RAID 5. suddenly the external storage drive shutdown and from three
logical drive two removed from my computer icon. It is giving me error ..
Logical drive faliure...

Please tell how can i retrive the drive with data.....

NOTE all drive is RAID 5
OS is Windows NT
Array configuration tool is COMPAQ ARRAY CONFIGURATION TOOL.

Please help...

Thankx

Tausif Alam

 

[Steve Duff [MVP]]

With one drive failure, a RAID 5 volume should continue to
work -- it will reconstruct the missing data which is part of
what RAID5 does.

It's a little hard for me to sort out exactly what you're
saying, but it sounds as though you have three >physical< SCSI drives
and (probably) one >logical< RAID5 drive -- and that drive #2 has
simply failed. In that case if another drive fails before you replace #2
and rebuild the data on to it, then you are in serious trouble.

First, if you don't have a current backup and the system is
still useable, you need to take care of that immediately.
Second, given the rather sensitive state of your system and
your apparent lack of experience with recovery, I'd really
advise that you call someone in. Pushing the wrong button
or pulling the wrong drive at the wrong time can easily leave you
with no data at all. RAID5 volumes in a critical state are very
tricky to deal with.

I may be reading your post wrong -- it could also be that you're
saying your server has failed. In that case you need to post
more information as I can't understand what is going on.

Steve Duff, MCSE
Ergodic Systems, Inc.