troubleshooting Question

Win2k Adv Srv 'Unexpected Shutdown', Disk Mgr shows 'Resynching' after reboot and 'bad blocks' in disk 0.

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Robert NevansFlag for United States of America asked on
Storage
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Platform: HP dual 1ghz with 1gb ram, Win2k Advanced Server.  Disk 0 40gb Seagate, disk 1 80bg maxtor.  Tape & CD no floppy.  Active Dir and file server for small law office - 8 users all Win XP Pro.  All revs current.  Dosk 0 (c:) is the boot, it is dynamic and mirrored to a 38.3gb partition on disk 1.

Three times in 6 days a client has called with "server shut off".  I have gotomypc access to the server.  Rebooting server comes up fine.  Examing event log shows only "unexpected shutdown", nothing else in App, Sec, Sys, DNS, or File Repl logs.

Opening disk management upon reboot shows 'Resynching' of the boot volume (c: on disk 0) and its mirror (on disk 1).  One out of the three times I also observed 'bad blocks' in the gray area of Disk 0, twice I did not.

Having decided that this is not a transient but rather a persistent error that is costing productivity losses I need to addresses it.

1. Absence of errors in the event log: If there are disk errors, why are they not being reported? Is there a switch in the registry that I can check on or change?

2. The server is actively connected to an APC 1500 UPS and its log shows nothing of significance for over 45 days.

3. It seems that disk 0 must be failing, although there are no 'bad blocks' or 'delayed write' errors in the event log or on screen.  Since it is a standard Disk Management dynamic mirror, is this the correct procedure for replace disk 0:
   1. wait for re-synch to complete
   2. reactivate both disk 0 and disk 1
   3. modify boot.ini (currently only shows disk 0 boot), current shows:
                                    multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Advanced Server" /fastdetect
       i should add the following:
                                    multi(0)disk(1)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Advanced Server"
   4. remove the mirror?  on which drive or does it make a difference?
   5. shut down the server
   6. remove failing disk 0, replace with new drive
   7. boot the server (hopefully to disk 1 - what do i do if this fails?)
   8. Disk Manager - activate the new disk 0, change to dynamic, change drive letters so it is c:
   9. then reboot and mirror or mirror and then reboot.

4. is there a simpler way (besides getting the client to invest in raid-5 hot swap)?  (since there are potential bad blocks on disk 0 and since everything is dynamic and the drives are two different sizes I don't think ghost or its cousins will be very cheap or easy).

Thanks
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