I have a mirrored LVM volume, and wish to break the mirror leaving only copy1 (effectively removing copy 0).
Here's the config:
I think running the above example command will convert the mirror to a linear volume running on copy 0. Any ideas how I can do the same, but leave it running on copy 1?
Thanks in advance.
---------- Post updated at 03:26 AM ---------- Previous update was at 01:59 AM ----------
i figured it out cheers. You need to specify the devices you wish to remove from the mirror, after the lvconvert command.
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)
I apologize is this isn't an appropriate post for the 'advanced' UNIX, so please let me know if I should post this under UNIX for dummies, but here's my problem in a nutshell: I having problems creating a mirrored logical volume.
I have created two new physical volumes
... (2 Replies)
I am working in Datastage Migration project. The applications has to be moved from legacy machines to the new machines.
all the applications will be having their own application id and password (non expiry) created in the unix (5.3). Now the scripts and the datastage applications has to be moved... (1 Reply)
Hi,
I need to know who can I create an script in order to check server mirror in AIX. I got this script
!/usr/bin/ksh
#
# Check if a VG is mirrored.
#
# lsattr -El <lvname> -a strictness -a copies
# If copies=2 and scrictness=y, then VG is mirrored
#
# LVs are retrieved via 'lsvg -l... (5 Replies)
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... (6 Replies)
Hi,
I have old server hp rp 3440 hp-ux 11.11. One mirrored disk is faulty. I need spesial patch PHKL_31216 and PHCO_30698, which give to correctly remove disk. Unfortunately I don't have access to hp support site. Please help me find it patch.
regards,Andre (0 Replies)
Hello,
I am trying to convert a single-drive Centos 7.2 installation with LVM into a two-disk mdadm mirror with mrrored LVM. I was able to follow the excellent instructions at:
http://www.dgoradia.com/creating-a-raid1-mirrored-on-an-existing-centos-on-lvm/and did create a two-disk mirror... (1 Reply)
Discussion started by: Clovis_Sangrail
1 Replies
LEARN ABOUT REDHAT
lvextend
LVEXTEND(8) System Manager's Manual LVEXTEND(8)NAME
lvextend - extend the size of a logical volume
SYNOPSIS
lvextend [-A|--autobackup {y|n}] [-d|--debug] [-h|--help] {-l|--extents [+]LogicalExtentsNumber| -L|--size [+]LogicalVolumeSize[kKmMgGtT]}
[-v|--verbose] LogicalVolumePath [PhysicalVolumePath...]
DESCRIPTION
lvextend allows you to extend the size of a logical volume. Extension of snapshot logical volumes (see lvcreate(8) for information to cre-
ate snapshots) is supprted as well.
OPTIONS
-A, --autobackup y/n
Controls automatic backup of VG metadata after the change ( see vgcfgbackup(8) ). Default is yes.
-d, --debug
Enables additional debugging output (if compiled with DEBUG).
-h, --help
Print a usage message on standard output and exit successfully.
-l, --extents [+]LogicalExtentsNumber
Extend or set the logical volume size in units of logical extents. With the + sign the value is added to the actual size of the
logical volume and without it, the value is taken as an absolute one.
-L, --size [+]LogicalVolumeSize[kKmMgGtT]
Extend or set the logical volume size in units in units of megabytes. A size suffix of M for megabytes, G for gigabytes or T for
terabytes is optional. With the + sign the value is added to the actual size of the logical volume and without it, the value is
taken as an absolute one.
-v, --verbose
Gives verbose runtime information about lvextend's activities.
Examples
"lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of that logical volume by 54MB on physical volume /dev/sdk3. This is
only possible if /dev/sdk3 is a member of volume group vg01 and there are enough free physical extents in it.
DIAGNOSTICS
lvextend returns an exit code of 0 for success or > 0 for error:
1 no logical volume name on command line
2 invalid physical volume name on command line
3 invalid logical volume name
4 error checking existence of logical volume
5 logical volume not active
6 error reading VGDA
7 requested physical volume not in this volume group
8 error getting index of logical volume
9 logical volume size not bigger than before
10 logical volume size exceeds volume group free capacity
11 logical volume size exceeds maximum
12 error setting up VGDA for logical volume extension
13 error extending VGDA for logical volume in kernel
14 error writing VGDA to physical volume(s)
15 error getting index for read/write statistics transfer
16 error getting status of logical volume from kernel
17 error setting up copy on write exception table
95 driver/module not in kernel
96 invalid I/O protocol version
97 error locking logical volume manager
98 invalid lvmtab (run vgscan(8))
99 invalid command line
ENVIRONMENT VARIABLES
LVM_AUTOBACKUP
If this variable is set to "no" then the automatic backup of VG metadata is turned off.
LVM_VG_MAX_BACKUPS
This variable determines the backup history depth of kept VGDA copy files in /etc/lvmconf. It can be set to a positive number
between 0 and 999. The higher this number is, the more changes you can restore using vgcfgrestore(8).
LVM_VG_NAME
The default Volume Group Name to use. Setting this variable enables you to enter just the Logical Volume Name rather than its com-
plete path.
See alsolvm(8), lvcreate(8), lvreduce(8), lvchange(8)AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com>
Heinz Mauelshagen LVM TOOLS LVEXTEND(8)