AIX break rootvg mirror from system down Post: 302942123

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Operating Systems AIX AIX break rootvg mirror from system down Post 302942123 by rbatte1 on Friday 24th of April 2015 11:57:21 AM

04-24-2015

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It would suggest that when the server was first installed that someone used a single disk (that would be labelled hdisk0) and the when complete they ran a mirrorvg rootvg only. There are more steps required to make it a usable mirror, namely running bosboot and setting the bootlist

Within SMS, can you choose your boot disk and enquire what is on each disk? I can't remember how right now and all my servers are running, so I can't just bounce one. I think you need to ask it to scan all devices, and it might take a while depending on your configuration.

If it sees your disk has a bootable AIX, try selecting it. That would suggest that just the bootlist is incorrect.

If SMS doesn't think that your disk has, all may not be lost, but it might be a little difficult. When in single user off media (tape / CD / DVD / or NIM) maybe you could try running the bosboot command against the correct disk? You may need to get this from the serial number.

It still may not work, but nothing else springs to mind at the moment without restoring from mksysb which I presume you don't want to do.

Robin

rbatte1

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LEARN ABOUT HPUX

vxbootsetup

vxbootsetup(1M) 														   vxbootsetup(1M)

NAME

       vxbootsetup - set up system boot information on a Veritas Volume Manager disk

SYNOPSIS

       /etc/vx/bin/vxbootsetup [-g diskgroup] [medianame ... ]

DESCRIPTION

       The  vxbootsetup utility configures physical disks so that they can be used to boot the system. Before vxbootsetup is called to configure a
       disk, the required volumes, standvol, rootvol and swapvol (and optionally, dumpvol) must be created on the disk.  All of these volumes must
       be contiguous with only one subdisk.

       The -g option may be used to specify the boot disk group.

       If  no  medianame arguments are specified, all disks that contain usable mirrors of the root, swap, /usr and /var volumes are configured to
       be bootable.

       If medianame arguments are given, only the disks that are associated with the specified disk names are configured to be bootable.

       vxbootsetup requires that:

       o    The root volume must be named rootvol and must have a usage type of root.

       o    The swap volume must be named swapvol and must have a usage type of swap.

       o    The volumes containing /usr and /var (if any) must be named usr and var, respectively.

       See the chapter "Recovery from Boot Disk Failure" in the Veritas Volume Manager Troubleshooting Guide for detailed information on  how  the
       system boots and how VxVM impacts the system boot process.  The vxmirror, vxrootmir, and vxresize utilities call vxbootsetup automatically.
       If you use vxassist, or vxmake and vxplex to create mirrors of the root volume on a disk, you must run vxbootsetup explicitly to  make  the
       disk bootable.

ARGUMENTS

       medianame
	    Specifies the disk name (disk media name) of a VM disk that is to be configured as bootable.

SEE ALSO

       disksetup(1M),  edvtoc(1M),  vxassist(1M),  vxevac(1M),	vxinstall(1M),	vxintro(1M),  vxmake(1M),  vxmirror(1M), vxplex(1M), vxresize(1M),
       vxrootmir(1M)

       Veritas Volume Manager Troubleshooting Guide

VxVM 5.0.31.1							    24 Mar 2008 						   vxbootsetup(1M)