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Full Discussion: How to identify virtual/physic disk path on X4100?
Special Forums Hardware How to identify virtual/physic disk path on X4100? Post 302768489 by sunnychen98 on Friday 8th of February 2013 04:21:41 PM
Old 02-08-2013
Hello,

The problem has been just resolved, but not as what we expected the way the problem should be resolved.

What we did was that we have found a similar structure server as spare, so our original idea was to shut down this spare server, boot to BIOS, check it's disk mirroring setting, pull one disk out, boot up to see the error message, then which might help us to determine which disk was the real bad one.

While local HW team told me they only saw 2 disks in X4100, I started to suspect there was no HW mirroring set-up, so we ran format->analyze->read on spare server, I intentionally picked c2t3d0 ( the one was bad on prod server ), after HW team confirmed they saw the blinking light while doing analyze, we decided to replace the disk on the problem server in the same slot.

After disk was hot-swap, "format", "prtvtoc /dev/rdsk/c2t3d0s2", "raidctl -l" all worked, then my suspicion raised : why I was seeing 2 disks in format? If it's HW mirroring, I should only see 1 disk in "format" ( since it's virtual to OS ).

Conclusion: the X4100 has 2 disks only and never been configured with HW mirroring.
 

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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)
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