Event ID 6 dmboot error

  • Thread starter Thread starter Dave Davis
  • Start date Start date
D

Dave Davis

Here is the event log error:
ID: 6 Source: dmboot
Description: dmboot: Failed to auto-import disk group <group name>. All
volumes in the disk group are not available.

Software is Windows 2000 server, sp3.

Hardware is Promise 100 TX2 internal raid card with four drives, raid 0/1,
stipe, mirror. They have single drive C on motherboard primary ide. the raid
was working ok, then channel 2 slave drive failed. Customer had turned off
server when i got there and removed drive to see what he needed to buy. i
restarted server to check out any other errors and the event above showed
up. this raid array is now inaccessable. drive manager shows drive 0 being
ok (single ide on motherboard with o/s and exchange). it shows drive 1 as
dynamic unreadable. Customer bought wrong drive and it would be next day
before he could get correct one so i went ahead and did post service pack
updates on windows and exchange, no errors. The next day I installed new ide
drive in array and let promise fastbuild utiility rebuild array. It was
successful. Problem is that the error did not go away and the array is still
not accessable and still shows dynamic unreadable. I'm almost certain that
the array is ok and all partitions, data are there, but that doesn't matter
if the o/s cant even see the drive.

Anyone have any ideas? Would rolling back updates to state before drive
failure help? Promise is claiming that they don't recommend configuring
array as dynamic because it is unstable, but customer says it has been that
way for several years with no problem. They really need to recover the data
on the array. I don't believe they have a current backup.

Thanks,

Dave
 
This posting is provided "AS IS" with no warranties, and confers no rights

Hi Dave,

I hope you should be aware of Knowledge Base Article of Microsoft ,
they talk extensively on different error mesages and how to fix them. In
case if you come up with any Error msg , the Best bet online is the KB
articles ...!!

This link take you to Microsoft Support Link where u can find the KB link.
http://support.microsoft.com

This link will directly take you to the KB article search
http://support.microsoft.com/default.aspx?scid=fh;EN-US;KBHOWTO

I found the following links that talk about the dbboot error :

1. Extending Hardware RAID Array May Cause Dynamic Unreadable/Offline
Error

http://support.microsoft.com/default.aspx?scid=kb;en-us;294244


2. System or Boot Disk Listed as Dynamic Unreadable in Disk Management :

http://support.microsoft.com/default.aspx?scid=kb;en-us;236086&Product=win20
00

3. Best Practices for Using Dynamic Disks on Windows 2000-Based Computers
http://support.microsoft.com/?kbid=329707

Regards,
Venkat.
 
Promise is claiming that they don't recommend configuring
array as dynamic because it is unstable, but customer says it has been that
way for several years with no problem.<<

They may have meant that if you already implement RAID reduncy on a hardware
level, why add even more on a software level? By using Dynamic disks, you
add complexity in case something goes wrong.

Recovery depends upon how the drive was 'partitioned', what volumes were
present etc. Also, recovering data would be easier if the disk/array was
initially a BASIC disk upgraded at some point. If the disk/array was DYNAMIC
from day one, volume boundries aren't cylinder alligned and you would have a
harder time locating volume headers.

Joep

--
D I Y D a t a R e c o v e r y . N L - Data & Disaster Recovery Tools

http://www.diydatarecovery.nl
http://www.diydatarecovery.com

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