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cxcal_18687's avatar
cxcal_18687
Icon for Nimbostratus rankNimbostratus
Jun 21, 2011

Failing Hard Drive

Looking to shed a little more light on a suspected hard drive issue.

 

 

DataCenter Engineer said the F5 LTM has a blighting light complaining about a hard drive failure.

 

 

I don't show anything on the system (unless I'm looking in the wrong place)

 

 

Can someone direct me to some useful documentation to help determine if there is a hard drive problem.

 

 

 

Thanks for the help!

 

 

 

 

 

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  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jun 21, 2011
    You could check /var/log/ltm for bad sector or other HDD related errors. Or you could run the End User Diagnostic to check definitively.

     

     

    Aaron
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jun 21, 2011
    have u checked /var/log/kern.log? hdd error is usually shown there.

     

     

    additionally, eud may not contain fsck. it depends on what eud version u r using.

     

     

    sol11664: Change in Behavior: Removal of File System Check from the EUD

     

    http://support.f5.com/kb/en-us/solutions/public/11000/600/sol11664.html

     

     

    hth
  • Techgeeeg's avatar
    Techgeeeg
    Icon for Nimbostratus rankNimbostratus
    Jun 21, 2011
    Yes EDU will help you to find out where the problem exactly is....
  • cxcal_18687's avatar
    cxcal_18687
    Icon for Nimbostratus rankNimbostratus
    Jun 21, 2011
    Can a filesystem check be performed remotely or does it require you to connected to via console in single user mode?
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jun 21, 2011
    Only in single user mode as the drive needs to be unmounted:

     

     

    sol10328: Forcing a file system check on the next system reboot

     

    http://support.f5.com/kb/en-us/solutions/public/10000/300/sol10328.html?sr=15095806

     

     

    Aaron
  • cxcal_18687's avatar
    cxcal_18687
    Icon for Nimbostratus rankNimbostratus
    Jun 22, 2011
    Can someone explain what the "undefined" indicates?

     

     

     

    Sys::Raid::Disk

     

    Name Serial Number Array Member Array Status

     

    ------------------------------------------------------

     

    CF1 CB06537260500900RY05 no undefined

     

    HD1 WD-WCAT1E936493 yes ok

     

    HD2 WD-WCAT1E937650 yes ok

     

     

     

    Running v10.1.0

     

  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jun 23, 2011
    That's just showing that there isn't a RAID array defined for the compact flash. I see the same thing on a working 8900: 

    
Sys::Raid::Disk
Name  Serial Number         Array Member  Array Status
------------------------------------------------------
CF1   B85131BGBCR209131600  no            undefined
HD1   WD-WCAT18687337       yes           ok
HD2   WD-WCAT18687750       yes           ok

    Which platform is this? Have you seen SOL12170:

    sol12170: The BIG-IP system may use the CompactFlash card for the swap partition on some platforms

    http://support.f5.com/kb/en-us/solutions/public/12000/100/sol12170.html

    You could force an disk check following SOL10328. You might also try running qkview and uploading the tech.out to http://ihealth.f5.com to review the suggestions there. If you don't get anything useful there, you could open a case with F5 Support.

    Aaron