Solved

Data drive missing in SBS2003

Posted on 2009-07-12
7
410 Views
Last Modified: 2012-05-07
After having to run a chkdsk /f on a RAID 5 volume that makes up the D: drive on an SBS 2003 server, I rebooted and the D: drive (C: is the system drive it's ok) is simply missing from windows explorer. It's like Windows has no reference to the drive at all.

The Raid manager shows the volume and it is optimal.  All drives show fine on boot up as well. It's like PHYSICALLY the drives are fine but LOGICALLY windows doesn't see the drive.

Any ideas? Thanks,
0
Comment
Question by:dgrenda
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 30

Expert Comment

by:Britt Thompson
ID: 24835144
Right click on My Computer and go to Manage > Find Disk Management and verify that the volume still has a drive letter assigned to it.
0
 

Author Comment

by:dgrenda
ID: 24835219
Disk management says it is dynamic and offline. But it does see it. I tried to reactivate it and got events:

Disk group LioxxxverDg0: Errors in some configuration copies:
Disk Harddisk1, copy 1: Block 320: Invalid magic number in the configuration copy

and

INTERNAL Error - The disk group contains no valid configuration copies  (C10000B6).
0
 
LVL 76

Assisted Solution

by:Alan Hardisty
Alan Hardisty earned 100 total points
ID: 24835305
Extract from http://www.quetek.com/RAID_mistakes.htm
Chkdsk being run on one of the disksChkdsk is a Windows utility that uses simple algorithms to recover data from a corrupt disk. Chkdsk can be started by the user or automatically by Windows if it detects disk corruption at boot time. (Windows will ask for confirmation before starting chkdsk but will start it anyway if no response is received after a number of seconds.) Chkdsk is not RAID-aware. Its algorithms only work in the simplest cases. In general, it must be avoided.

If chkdsk attempts to repair one or more member disks, the RAID data patterns will be destroyed, usually beyond recovery.  
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
LVL 30

Expert Comment

by:Britt Thompson
ID: 24835313
The dynamic disk is where you ran into trouble...since you have a hardware RAID the dynamic disk LDM database was probably blown up when you ran chkdsk.

You'll most likely have to do a data recovery on the existing disk and reformat it. Make sure you keep the hardware RAID as a basic disk or GPT if it's over 2TB. http://www.ontrackdatarecovery.com/file-recovery-software/

http://support.microsoft.com/kb/309044
0
 
LVL 30

Accepted Solution

by:
Britt Thompson earned 300 total points
ID: 24835339
0
 
LVL 47

Assisted Solution

by:noxcho
noxcho earned 100 total points
ID: 24835344
Do you have up to date backup of the data? If yes, then restore from it.
0
 

Author Closing Comment

by:dgrenda
ID: 31602597
Thank you all. The chkdsk pulled 3+ Gig of files and that doomed the drive. I will probably just convert the drive and reformat it and resotre.
0

Featured Post

Comparison of Amazon Drive, Google Drive, OneDrive

What is Best for Backup: Amazon Drive, Google Drive or MS OneDrive? In this free whitepaper we look at their performance, pricing, and platform availability to help you decide which cloud drive is right for your situation. Download and read the results of our testing for free!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The question appears often enough, how do I transfer my data from my old server to the new server while preserving file shares, share permissions, and NTFS permisions.  Here are my tips for handling such a transfer.
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question