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A few questions on FC / SAN and SDD..thanks.

  • 1.  A few questions on FC / SAN and SDD..thanks.

    Posted Tue March 06, 2007 04:14 AM

    Originally posted by: SystemAdmin


    Hi All, if a Shark F20 goes down / dissappears from view, what issues can I expect on the AIX side in regards to not getting the storage back once the F20 is back up? Is SDD an add-on? Does it have it's own unique commands? What commands can query the vpaths and HBA's for problems and what commands can resolve any issues etc...?

    I know some of these questions may appear daft, but if you can help please do.

    Many thanks


  • 2.  Re: A few questions on FC / SAN and SDD..thanks.

    Posted Tue March 06, 2007 07:46 PM

    Originally posted by: dukessd


    The AIX machine will log loads of errors against the adapter that was connected to the F20 and LVM_IO errors for the device that went missing that it was trying to access.

    Depending on the application and AIX configuration the host might hang or crash.

    SDD is an AIX add on.

    SDD has its own commands:
    http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/tips0553.html?Open

    Google: "site:ibm.com sdd commands" or similar for more info.

    Once the F20 is back up you may need to reboot the AIX host to reconnect and get the app up and running again.