Logical disk shows not available
Hi Eeveryone I have installed SCOM 2007 R2 in our environment and are quite new to it. For some reason it shows me one 2 or 3 servers that the Logical drive is not availbale I'm pasting the details below that i get in ScOM. If i try to acccess the drive by logging onto the server i can do it without issues. Should i be alarm by this warning or can i close the alert? Thanks for the help ================================ Summary The logical disk volume is not available. The data stored on the volume is inaccessible. Causes A logical disk may become inaccessible due to a number of reasons some of which include: • Related physical disk has been removed • Physical disk has become corrupt (for example; bad sectors) or inoperable • Problem with physical disk driver Resolutions Check the status of your hardware for any failures (for example, a disk, controller, cabling failure). In most cases, the system log contains additional events from the lower-level storage drivers that indicate the cause of the failure. After you have isolated and resolved the hardware problem: 1. Open the Disk Management snap-in. 2. Rescan the disks and then reactivate any disks with errors. Resynchronize or regenerate the volume as necessary if the disk was a member of a mirrored or RAID-5 volume. 3. Run chkdsk on any reactivated volumes. "
June 13th, 2011 8:57am

Kevin Holman gives additional troubleshooting options here: http://blogs.technet.com/b/kevinholman/archive/2010/07/29/logical-disk-availability-is-critical-what-does-this-mean.aspx Cheers GrahamView OpsMgr tips and tricks at http://systemcentersolutions.wordpress.com/
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June 13th, 2011 8:59am

10 to 1 that the issue is the file system on the disk has been flagged as corrupt. Look for error event id 55 in the System log to see this. The monitor itself gets the status from wmi. Run wbemtest, connect to root\cimv2, and query "select * frmo win32_logicaldisk'. Double click on the volume from the alert and scroll down to the VolumeDirty property, it will say TRUE.Layne, 2011 Microsoft Community Contributor Recipient
June 13th, 2011 4:09pm

Yep - that is precisely what the url runs through ... copied and pasted below: As to resolutions: Open the Disk Management snap-in. Rescan the disks and then reactivate any disks with errors. Resynchronize or regenerate the volume as necessary if the disk was a member of a mirrored or RAID-5 volume. Run chkdsk on any reactivated volumes. But what if you didn't see any problems? Then what? It’s not like we are going to run off and run a chkdsk on a production server if we don't see anything wrong or know about any previous disk issues. At that point – it is good to know what this monitor is actually doing. If you look at the MP in the XML, or follow the Monitor > MonitorType > DataSource in the Authoring Console, you will see this monitor runs a script every 5 minutes (Microsoft.Windows.Server.LogicalDiskHealthCheck.vbs) While the script does MANY checks… the primary driver of “BAD” state is a single item – a WMI query to the Win32_LogicalDisk class to see if the Volume is marked as dirty. You check this yourself: Open WBEMTEST Connect to root\CIMV2 Select query, and paste in: “select * from Win32_LogicalDisk where (DriveType=3 or DriveType=6) and FileSystem != null” (no quotes) Whichever drive letter is red – select that one by double-click. On the right side – click SHOW MOF Scroll all the way down in the list to “VolumeDirty” If VolumeDirty = True, then this monitor will be “bad”. What this means is – at some point this volume got a NTFS error, or was removed from the OS in a critical manner. It *requires* a Chdksk /f to be run against this volume to restore VolumeDirty to a FALSE condition. So – if you see these – you can double check this by running the simple WMI query… and then just schedule a Chkdsk on the volume during the next available maintenance window.View OpsMgr tips and tricks at http://systemcentersolutions.wordpress.com/
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June 13th, 2011 6:05pm

thanks all, i will run the chkdsk /f tonight after hours and see if that fixes the problem
June 14th, 2011 1:11am

Thanks for the help guys, the proposed solution does work ;>
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June 15th, 2011 1:21am

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