Re: [Xen-users] Mass LVM VBD script for DomU creation

[Tristram Cheer <tristram@xxxxxxxxxxxxx>]

That will teach me to hit send too quick, remove the 'echo' from each of 
the lines in order for it to actually do things, as it stands the script 
will just spit out the command's it would have run
Tristram Cheer wrote:

> Hi everybody,
>
> After going through and makeing 20 LV's in LVM and formatting them etc 
> etc getting ready to deploy 20 DomU's i've made a very basic script to 
> configure LVM and format the drives for a bunch of servers at once. 
> Thought i would share it with the list, i know its nothing great but 
> it saved me a bunch of time
> -------------------------------------------------------------------------------------------------- 
>
> #!/bin/bash
> # Creates LV in LVM for Server List
> # Written By Tristram Cheer
>
> #Create the PV on the drive
> echo pvcreate '/dev/'$1
>
> # Create the VG on the PV
> echo vgcreate 'vg-'$1 '/dev/'$1
>
> #Create the LV for the root filesystem and swap filesystem and format 
> them both
> for server in `cat serverlist`
> do
> echo lvcreate '-L'$2'M' -n $server 'vg-'$1
> echo lvcreate '-L'$3'M' -n $server'-swap' 'vg-'$1
> echo mkfs.ext3  '/dev/vg-'$1'/'$server
> echo mkswap '/dev/vg-'$1'/'$server'-swap'
> done
>
> exit 0
> -------------------------------------------------------------------------------------------------- 
>
> save that bash script in a folder somewhere and create a file in the 
> same folder called 'serverlist' in that file list all the names of the 
> servers you want to make, 1 to each line.
> Then you can run the script like so
> ./mass-lvm-domu-create.sh sda 2252 512
>
> Where sda is the disk you are using for teh LVM, 2552 is the size in 
> megabytes of the root volume and 512 is the size of the Swap partition.
> Beware this assumes you are starting from scratch, it will create the 
> PV and VG on the drive you specifiy etc etc, those that cant read what 
> the script does from the code shouldnt really use it.
> USE AT OWN RISK.
>
> - Tristram Cheer
>
>
> _______________________________________________
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> http://lists.xensource.com/xen-users



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