LVM lvcreate don't want to format Post: 302296073

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Top Forums UNIX for Dummies Questions & Answers LVM lvcreate don't want to format Post 302296073 by Ivan45 on Tuesday 10th of March 2009 09:53:25 AM

03-10-2009

Registered User

Hi Zaxxon,

thanks for your quick reply.
Unfortunately if Im using mkfs, all preexisting data will be lost.

Let me explain my scenario :
We have two sites.
Site 1 has an AIX connected to a Storage through iscsi protocol. This is the production site. This AIX server use LVM to create VG, PV, LV with no problem.(LV command is formating.

Site 2 (disaster Site) has a second SAN Storage which is receiving mirrored data from Site 1. A second AIX server is attached to this second Storage through iscsi ( this LUN is a data replication from Site 1)
The idea would be to mount the LUN ( which is already populated) on the second AIX through LVM. This is where I get Stuck as I cannot create an LV and mount the system until I do a MKFS !!!!
Is this a normal behavior ? did I miss something ?

Thanks a lot
Ivan

Ivan45

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LEARN ABOUT CENTOS

yum-fs-snapshot.conf

YUM-FS-SNAPSHOT.CONF(5) 					   File Formats 					   YUM-FS-SNAPSHOT.CONF(5)

NAME

       yum-fs-snapshot.conf(5)

SYNOPSIS

       yum-fs-snapshot.conf(5)	is the configuration file for yum-fs-snapshot(1) Yum plugin for snapshotting your filesystems before running a yum
       transaction.  By default, this plugin will snapshot all filesystems that it is capable of snapshotting.	This  includes	block-level  snap-
       shots using LVM snapshots.

FILES

       /etc/yum/pluginconf.d/fs-snapshot.conf

FILE FORMAT

       yum-fs-snapshot.conf(5) utilizes configuration options in the form of

       OPTION=VALUE

OPTION

       exclude
	      This is a space delimited list of the mount points you do not wish to have snapshotted by this plugin.

OPTION

       create_snapshots_in_post
	      This is a boolean value used to control whether snapshots are also created after running the yum transaction.

OPTION - [lvm] section
       enabled
	      This is a boolean value used to control whether LVM snapshots will be created for filesystems built on LVM logical volumes.

OPTION - [lvm] section
       lvcreate_size_args
	      This is the space delimited lvcreate argument list that is used to specify the size of the snapshot LV.  Valid lvcreate size options
	      are -l or -L.  If not specified then LVM snapshots will not be created for volumes that are not thinly provisioned.

AUTHOR

	      Josef Bacik <josef@toxicpanda.com>
	      Mike Snitzer <msnitzer@fedoraproject.org>

SEE ALSO

       yum-fs-snapshot(1)

								  3 February 2010					   YUM-FS-SNAPSHOT.CONF(5)