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.
Kind of stuck. suggestions?
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 OSF1
volmirror
volmirror(8) System Manager's Manual volmirror(8)NAME
volmirror - Mirrors volumes on a disk or control default mirroring
SYNOPSIS
/usr/sbin/volmirror [-g diskgroup] [-d yes|no] medianame [new_medianame...]
/usr/sbin/volmirror [-g diskgroup] [-d yes|no] -a [new_medianame...]
/usr/sbin/volmirror [-g diskgroup] [-d yes|no]
/usr/sbin/volmirror [-g diskgroup] -D
OPTIONS
The volmirror command supports the following options: Limits operation of the command to the given disk group, as specified by disk group
ID or disk group name. The medianame operands will be evaluated relative to the given disk group. If no disk group is supplied to the
volmirror command, rootdg is presumed. Changes the default for subsequent volume creation, depending on the option argument. If the option
argument is yes, all subsequent volumes created using the volassist command will automatically be created as mirrored volumes. If the
option argument supplied is no, mirroring will be turned off for future volumes by default. Displays current default status for mirroring.
Mirrors all existing volumes for the specified disk group.
DESCRIPTION
The volmirror command provides a mechanism to mirror all the contents of a specified disk, to mirror all currently unmirrored volumes in
the specified disk group, or to change or display the current defaults for mirroring. All volumes that have only a single plex (mirror
copy), will be mirrored by adding an additional plex.
Volumes containing subdisks that reside on more than one disk will not be mirrored by volmirror.
The volmirror command is generally called from the voldiskadm menus. It is not an interactive command and once called, will continue until
completion of the operation or until a failure is detected.
Note
Due to the nature of generating mirror copies of volumes, this command may take a considerable time to complete.
In the first listed form of the command, the disk media name is supplied on the command line to volmirror. That name is taken to be the
only disk from which volumes should be mirrored. In the case of mirroring volumes from a specified disk, only simple single-subdisk volumes
are mirrored.
In the first and second listed forms of the command, the new_medianame ... parameter identifies a new disk media name (or set of names).
The mirroring operation being performed will use these names as targets on which to allocate the mirrors. An error will result if the same
disk is specified for both the source and target disk and if no other viable targets are supplied.
EXAMPLES
The following are examples of the use of the volmirror command. The following command mirrors the contents of the disk named disk01 to any
available space on any available disk. Subsequent calls to volassist will cause created volumes to be mirrored by default. volmirror -d
yes disk01 The following command displays the current status of default mirroring. It prints the string yes if mirroring is currently
enabled or no, if not. volmirror -D The following command mirrors any volumes on disk02 onto disk03. volmirror disk02 disk03
FILES
The defaults file for volassist parameters.
SEE ALSO volintro(8), volassist(8), volrootmir(8)volmirror(8)