[ale] Disaster Recovery - HELP!

[Dow Hurst]

This type situation of a corrupted file system has come up several times 
on the list.  Could we develop a collaborative talk with several experts 
contributing practical ideas on file system recovery as a talk at one of 
the meetings?  Just a suggestion.

I think a dd piped into a tar file to tape or another drive would be in 
order at this point for Jonathon, but this is just what I've learned 
watching Bob do his thing.  Jonathon, take each drive and put them one 
at a time into a box where you have a tape or more disk space.  dd and 
pipe into tar each one of the drives to capture a permanent copy of what 
you have.  Then, after you finish the dd, go back to working on the RAID 
recovery.  You can always use Bob's trick of using grep on a tar file to 
find stuff.

Or, you could just call Bob and let him help you out!
Dow


Danny Cox wrote:

>Jonathan,
>
>On Tue, 2003-03-25 at 10:08, Jonathan Glass wrote:
>  
>
>>Anyone ever tried to recover data from a hardware RAID 5 partition after losing
>>2 out of 5 disks?  The directory structure appears, but I get INPUT/OUTPUT
>>errors when trying to LS directories.  Any thoughts on how to recover, except
>>from tape?  
>>    
>>
>
>	One thought: find "raidreconf", now part of the raid tools package, I
>think.  It can "export" from a RAID5 to a single disk.  The RAID must be
>shutdown/offline, and it runs entirely in user space.  You'll still get
>errors, but what it can read, it will.
>
>	Again, this is just an idea.  It may work, and it may not.... :-(
>
>	Caveat: I wrote the RAID5 code, so beware! ;-)
>
>  
>

-- 
__________________________________________________________
Dow Hurst                  Office: 770-499-3428
Systems Support Specialist    Fax: 770-423-6744
1000 Chastain Rd. Bldg. 12
Chemistry Department SC428  Email:   dhurst at kennesaw.edu
Kennesaw State University         Dow.Hurst at mindspring.com
Kennesaw, GA 30144
*****************************************************************
This message (including any attachments) contains confidential  *
information intended for a specific individual and purpose,     *
and is protected by law.  If you are not the intended recipient,*
you should delete this message and are hereby notified that     *
any disclosure, copying, or distribution of this message, or    *
the taking of any action based on it, is strictly prohibited.   *
*****************************************************************


_______________________________________________
Ale mailing list
Ale at ale.org
http://www.ale.org/mailman/listinfo/ale