Hello,
aix 5.2, mirrored rootvg on hdisk0 and hdisk1. hdisk0 is dead. I can boot to cd, into sms, into maintenance mode. I can fsck all the various partitions on hdisk1 (the hd4 hd2 hd3, etc...) all is fine. But without the hdisk0 part of the mirror I cannot get the system to boot. ystem hangs on boot with a LED code of 517 (or is it 518?).
None of the lvm commands for dealing with mirrors are in the cd /usr.
I tried editing the image.data file to remove references to hdisk0, and changed all the copies from 2 to 1, fixed the PP entries to match, and hoped that would break the mirrors, but alas.
So for kicks I mounted the "real" usr and now the commands are available, but now they won't work because rootvg cannot be varyonvg'd.
Code:
# lsvg -l rootvg
0516-013 : The volume group cannot be varied on because
there are no good copies of the descriptor area.
Hello again,
We need to install patches to HP-UX B.11.11 but would like to break the mirror it has (with out damaging it) so that in case of failure we can use this a meassure procedure.
Any ideas on how to do this
Thank you! (2 Replies)
Hi All,
How do you know if you need to break the mirror on solaris 8 patch update?
Here's the patch example, 117350-54. On the site, it's just a low type update and not a medium or critical.
Is breaking a mirror a best practice only or really a requirement to some patch?
Thanks,
itik (1 Reply)
Hi All,
How do I break the solaris 8 mirror? And how do I make sure I will point the first hd mirror on reboot.
If the first break mirror won't boot. How do I make the copy mirror to boot?
Thanks in advance,
itik (2 Replies)
Hello
I have a question
I have a box with Aix 5.3 with rootvg on mirror.
I deleted a filesystem and I create a new one to install some software but when I type lsvg -l rootvg all my filesystems has mirror unless the new one.
My question is I can mirror this fs only ??? or I have to... (9 Replies)
We are considering a DR strategy of booting AIX 5.3 and 5.3 logical partitions from EMC Symmetrix SAN disks, so that we can replicate via SRDF to a recovery site. Has anyone tried configuring AIX 5.x systems to boot from SAN disk? If so, can you provide any information on the pros and cons of... (6 Replies)
Guys,
In my AIX 6.1 box the rootvg was on hdisk2, I tried to migrated it to hdisk0
Added hisk0 to rootvg , mirrored rootvg and changed bootlist and and sucessfully rebooted from hdisk0
Now I tried to remove the hdisk2 from rootvg so breaked mirror
-bash-3.00# unmirrorvg rootvg hdisk2... (3 Replies)
Hello all,
I need help for erasing IBM P5 machine running AIX 5.3.
I have 2 system disks (Hardware mirror) and i'm looking for a way like a LIVE CD bootable CD so I can boot with the cd and then format the system disks with a "secure erase" software. (7 Replies)
Hello:
I have a machine built on 2 drives and mirrors have been created to a second set of 2 drives (4 total) on the same platform. SVM.
Might anyone provide guidance to create a second machine by breaking the mirrored set, moving the two mirrors (2) to another machine (same platform type),... (1 Reply)
Hello,
Few days ago I created both mksysb and savevg archives of rootvg.
How can I restore this rootvg now because the AIX crashed during some software tests. There is no way to start from hdisk0 because most of the system files are deleted (this includes libc.a).
I tough it will be trivial... (6 Replies)
Hi Guys,
I have a mirrored LVM volume, and wish to break the mirror leaving only copy1 (effectively removing copy 0).
Here's the config:
# lvs -a -o +devices
lvdata vg01 mwi-ao 2.19T lvdata_mlog 100.00 lvdata_mimage_0(0),lvdata_mimage_1(0)
vg01... (0 Replies)
Discussion started by: badoshi
0 Replies
LEARN ABOUT HPUX
vxbrk_rootmir
vxbrk_rootmir(1M)vxbrk_rootmir(1M)NAME
vxbrk_rootmir - break off a mirror of a VxVM root disk to create a separate root disk generation
SYNOPSIS
/etc/vx/bin/vxbrk_rootmir [-g diskgroup] [-v] [-b] [-t tasktag] {daname|dmname}
DESCRIPTION
The vxbrk_rootmir command creates a mirror of a Veritas Volume Manager (VxVM) rootable boot disk, breaks the mirror, and then makes the
broken-off mirror into a completely separate root disk that is suitable for booting by itself.
Except the specified target disk, the bootdg should not contain any disks other than valid root mirror disks. A valid root mirror disk
should have mirrors of all volumes in the bootdg. Thus, all disks must be exactly identical in terms of the volumes contained.
The given disk access name, daname, or disk media name, dmname, is first checked to see if it is already a valid root disk mirror. If so,
the mirror is broken off from the current VxVM root disk, and regenerated into a unique VxVM root disk. If the specified disk is not a
valid root disk mirror, and is unused for other purposes, the vxrootmir command is first called to mirror the specified disk from the cur-
rent VxVM root disk. After the mirroring operation is complete, the mirror is then broken off, and regenerated into a unique VxVM root
disk.
OPTIONS -b Uses the setboot command to set the alternate boot disk to the specified disk. If the -v option is also specified, information is
displayed about the current setboot settings.
-g diskgroup
Specifies the disk group into which the newly broken-off mirror is to be placed. The disk group is created if it does not already
exist. If the disk group already exists, the broken-off mirror is added to it. If this option is not specified, the disk group of
the broken-off mirror is set to the current default disk group. However, the generation number is made different from the default disk
group to prevent the mirror from being automatically imported.
-t tasktag
Marks any tasks that are registered to track the progress of an operation with the specified tag, tasktag. This option is passed to
vxrootmir if it is necessary first to mirror the specified disk that is to be broken off.
-v Displays verbose output, including timestamps for operations that are in progress. This option is passed to vxrootmir if it is neces-
sary first to mirror the specified disk that is to be broken off.
ARGUMENTS
daname Specifies the disk to be used as the broken off mirror by its disk access name (such as c0t2d0).
dmname Specifies the disk to be used as the broken off mirror by its disk media name (such as rootdisk03).
EXAMPLES
This example shows the vxbrk_rootmir command being executed on a disk that already contains a valid root mirror:
/etc/vx/bin/vxbrk_rootmir -g brkdg -vb c4t15d0
VxVM vxbrk_rootmir INFO V-5-2-4023 17:47:
Checking specified disk(s) for presence and type
VxVM vxbrk_rootmir INFO V-5-2-4025 17:47:
DA c4t15d0s2, DM rootdisk06 is a valid root mirror
VxVM vxbrk_rootmir INFO V-5-2-4052 17:47:
Saving configuration data for later restoration
VxVM vxbrk_rootmir INFO V-5-2-4022 17:47:
Breaking off root mirror on DA c4t15d0s2
VxVM vxbrk_rootmir INFO V-5-2-4054 17:47:
Setting broken off mirror on c4t15d0s2 as unique root disk
VxVM vxbrk_rootmir INFO V-5-2-2566 17:47:
Preparing disk c4t15d0s2 as a VxVM root disk
VxVM vxbrk_rootmir INFO V-5-2-4046 17:47:
Patching devnodes, fstab and volboot file in new Root FS
VxVM vxbrk_rootmir INFO V-5-2-4045 17:47:
Patching /stand/bootconf file to contain new root disk
VxVM vxbrk_rootmir INFO V-5-2-2462 17:48:
Current setboot values:
VxVM vxbrk_rootmir INFO V-5-2-4048 17:48:
Primary: 0/0/2/0.2.0
VxVM vxbrk_rootmir INFO V-5-2-4010 17:48:
Alternate: 0/2/1/0.8.0.255.2.5.0
VxVM vxbrk_rootmir INFO V-5-2-4042 17:48:
Making c4t15d0s2 (0/2/1/0.8.0.255.1.15.0) the alternate boot disk
VxVM vxbrk_rootmir INFO V-5-2-4028 17:48:
Disk c4t15d0s2 is now a broken off root disk
The next example shows the command being executed on a disk that does not contain a valid root mirror, and which requires vxrootmir be
called to mirror the root disk first:
/etc/vx/bin/vxbrk_rootmir -g brkdg -vb c5t5d0
VxVM vxbrk_rootmir INFO V-5-2-4023 16:25:
Checking specified disk(s) for presence and type
VxVM vxbrk_rootmir INFO V-5-2-4043 16:25: Mirroring root disk
VxVM vxrootmir INFO V-5-2-2501 16:25:
Gathering information on the current VxVM root configuration
VxVM vxrootmir INFO V-5-2-2441 16:25:
Checking specified disk(s) for usability
VxVM vxrootmir INFO V-5-2-2566 16:25:
Preparing disk c5t5d0 as a VxVM root disk
VxVM vxrootmir INFO V-5-2-3766 16:25:
Disk c5t5d0 is now EFI partitioned disk c5t5d0s2
VxVM vxrootmir INFO V-5-2-2410 16:25:
Adding disk c5t5d0s2 to brkdg as DM rootdisk03
VxVM vxrootmir INFO V-5-2-1646 16:25:
Mirroring all volumes on root disk
VxVM vxrootmir INFO V-5-2-1648 16:25: Mirroring volume standvol
VxVM vxrootmir INFO V-5-2-1648 16:26: Mirroring volume swapvol
VxVM vxrootmir INFO V-5-2-1648 16:30: Mirroring volume rootvol
VxVM vxrootmir INFO V-5-2-1648 16:31: Mirroring volume homevol
VxVM vxrootmir INFO V-5-2-1648 16:31: Mirroring volume tmpvol
VxVM vxrootmir INFO V-5-2-1648 16:31: Mirroring volume usrvol
VxVM vxrootmir INFO V-5-2-1648 16:34: Mirroring volume optvol
VxVM vxrootmir INFO V-5-2-1648 16:36: Mirroring volume varvol
VxVM vxrootmir INFO V-5-2-1616 16:40:
Disk c5t5d0s2 is now a mirrored root disk
VxVM vxbrk_rootmir INFO V-5-2-4052 16:40:
Saving configuration data for later restoration
VxVM vxbrk_rootmir INFO V-5-2-4022 16:40:
Breaking off root mirror on DA c5t5d0s2
VxVM vxbrk_rootmir INFO V-5-2-4054 16:40:
Setting broken off mirror on c5t5d0s2 as unique root disk
VxVM vxbrk_rootmir INFO V-5-2-2566 16:40:
Preparing disk c5t5d0s2 as a VxVM root disk
VxVM vxbrk_rootmir INFO V-5-2-4046 16:41:
Patching devnodes, fstab and volboot file in new Root FS
VxVM vxbrk_rootmir INFO V-5-2-4045 16:41:
Patching /stand/bootconf file to contain new root disk
VxVM vxbrk_rootmir INFO V-5-2-2462 16:41: Current setboot values:
VxVM vxbrk_rootmir INFO V-5-2-4048 16:41:
Primary: 0/0/2/0.2.0
VxVM vxbrk_rootmir INFO V-5-2-4010 16:41:
Alternate: 0/2/1/0.8.0.255.2.0.0
VxVM vxbrk_rootmir INFO V-5-2-4042 16:41:
Making c5t5d0s2 (0/2/1/0.8.0.255.2.5.0) the alternate boot disk
VxVM vxbrk_rootmir INFO V-5-2-4028 16:41:
Disk c5t5d0s2 is now a broken off root disk
SEE ALSO vxbootsetup(1M), vxdg(1M), vxintro(1M), vxrootmir(1M), vxtask(1M)VxVM 5.0.31.1 24 Mar 2008 vxbrk_rootmir(1M)
04-23-2015
