Disk errors on ESXi 4

You have Windows running as a guest OS on ESXi 4. Where are your drives showing errors? In Windows? If so what kind of disk is it and how is it attached, e.g. is the disk virtual or direct access? If it's direct access you're likely having physical hardware failure and will need to move to a different disk.

Hi,

they are windows errors. VSS stopped working on the drive so i restarted the server and found that it went into chkdsk mode. After 20 mins of finding various errors it aborted and booted back into windows. The drive is still showing but obviously some data has issues. They are virtual disks on an iscsi san.

You had a VSS issue, rebooted with the disk marked dirty and thus chkdsk ran and various errors were found. Could you check your event log and post some of them? When you say chkdsk aborted how exactly did it abort? Did you stop it, or did it finish on its own?

If you edit settings on your VM what type of disk and controller are you using?

VSS errors are 7001 and 12305. There doesn't appear any errors relating to the chkdsk that run during boot up.. The chkdsk aborted on its own...cannot recall the error but it wasn't descriptive. Prior to aborting it was finding errors on various sectors. Using thick disks with LSI Logic SAS controller.

What text is listed for 7001? Did you make any recent changes to your disk configuration? In Disk Management do your volumes show up as healthy? How much space is free on your disks?

No changes have been made to the disk config. Disks show as healthy in disk management. Free space is >25% on all drives.

Log Name:      Application
Source:        VSS
Date:          9/10/2010 7:00:00 PM
Event ID:      7001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      AMCFS01S.cml.bm
Description:
VssAdmin: Unable to create a shadow copy: Either the specified volume was not found or it is not a local volume.
Command-line: 'C:\Windows\system32\vssadmin.exe Create Shadow /AutoRetry=15 /For=\\?\Volume{b9c95de3-4270-11df-8617-0050568a1297}\'.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="VSS" />
    <EventID Qualifiers="0">7001</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2010-09-10T22:00:00.000000000Z" />
    <EventRecordID>1585</EventRecordID>
    <Channel>Application</Channel>
    <Computer>AMCFS01S.cml.bm</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Unable to create a shadow copy</Data>
    <Data>Either the specified volume was not found or it is not a local volume. </Data>
    <Data>C:\Windows\system32\vssadmin.exe Create Shadow /AutoRetry=15 /For=\\?\Volume{b9c95de3-4270-11df-8617-0050568a1297}\</Data>
    <Data>
    </Data>
    <Binary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inary>
  </EventData>
</Event>

\\?\Volume{f1cff748-369f-11df-b6fb-806e6f6e6963}\
     *** NO MOUNT POINTS ***

 \\?\Volume{b9c95de3-4270-11df-8617-0050568a1297}\
     D:\

 \\?\Volume{f3566656-5093-11df-9c70-0050568a1297}\
     E:\

 \\?\Volume{f1cff749-369f-11df-b6fb-806e6f6e6963}\
     C:\

 \\?\Volume{f1cff74d-369f-11df-b6fb-806e6f6e6963}\
     A:\

 \\?\Volume{f1cff74c-369f-11df-b6fb-806e6f6e6963}\
     Z:\

Check if VSS can see the D:\
vssadmin list volumes
vssadmin list shadowstorage
vssadmin list shadows