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  • 1.  Paging space mirrored

    Posted Wed July 19, 2006 09:43 AM

    Originally posted by: SystemAdmin


    In system there is two paging space, one is default paging space which is nothing but hd6 and other is paging00.

    The paging00 is present under hdisk1 and hd6 paging is present under hdisk0. Both the disks are present on different Volume group.

    My Concern is that, If either of the disk fails on the systems then system will come up or not ?
    Paging space mirrored is recommended or not for large systems.
    #AIX-Forum


  • 2.  Re: Paging space mirrored

    Posted Wed July 19, 2006 02:28 PM

    Originally posted by: SystemAdmin


    In your case if you lose hdisk1 you should be able to boot up without it, assuming there's nothing else vital on it. If you lose hdisk0 paging space will, with respect, be the least of your problems. Your system won't boot because you won't have a root volume group, hence no boot image, hence nothing else matters:-)

    For a high availablity configuration it's usually a good idea to define multiple page spaces outside of the root volume group, drop hd6 and then mirror the root volume group. That way loss of a physical volume in rootvg won't take your system down.

    HTH

    Jim Lane
    #AIX-Forum