Question

Cannot rebuild RAID drive

Asked by: CocosDad

One drive of a 3 drive RAID 5 system failed during the middle of the day.  This is a Small Business Server 2003 and both SQL and Exchange were both open.  Server will actually come up on the remaining 2 drives but both Exchange and SQL will not open.  I went into the LSI Configuration Utility, failed the hot spare and set it to rebuild.  Process gets to about 24% and fails with an error.  Have tried rebuilding both the hot spare and the original failed drive several times each; same error at about 24%   Have installed a new 250GB SATA drive that is currently rebuilding but do not  have that warm, fuzzy feeling.

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Asked On
2009-10-30 at 10:50:23ID24858893
Tags

Gateway E-9510T LSI MegaRAID RAID 5

Topics

Storage Technology

,

Hard Drives & Storage

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: charlestassePosted on 2009-10-30 at 11:06:00ID: 25705431

Based on what you have reported the issue may not be with the hard drive.

When a drive failes to rebuild and replacing it with another drive that fails to rebuild at the same point indicates damage to the consistancy of the Array. This is indictive of a punchered stripe

http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_23330688.html

The only resolution is to save / image you data, delete the array and recreate it, restoring your data. This is not a perfect fit as the data that is corrupted by the puncher is not recoverable

 

by: jamietonerPosted on 2009-10-30 at 11:14:00ID: 25705494

If the rebuild fails again at about the same spot(24%), that usually indicates a punctured stripe or 1 of the remaining online drives has problems. If this is the case the only way to recover is to recreate the array and reinstall the os(or re-image the system) and restore from backup.

 

by: jamietonerPosted on 2009-10-30 at 11:15:07ID: 25705502

Looks like i was way slow this time.

20120131-EE-VQP-002

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