 | | | Storage space partition | Storage space partition 2006-04-14 - By Bob McClure Jr
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On Fri, Apr 14, 2006 at 11:46:24AM -0400, Nair, Murlidharan T wrote:
>
> <much snippage>
>
> Hi!!
>
> I am in the last stages on my installation. My server can see the SAN
> and everything seems ok. Here is a list of what I plan to do with some
> question. I would really appreciate if you could tell me if I am doing
> something incorrect or is there anything that I have missed.
>
> 1. Creating a disk partition for LVM as follows
>
> fdisk /dev/emcpowera
>
> Where options chosen are t = 8e which is the linux lvm partition and w
> to write it.
>
>
> 2. Create a volume group descriptor at the start of the disk
>
> pvcreate /dev/emcpowera
You are using the whole disk rather than the partition, but that's okay.
> 3. Creat a volume group
>
> vgcreate bioVG /dev/emcpowera
>
> 4. Activate the volume group
>
> vgchange -a y bioVG
>
> 5. Find the total PE size
>
> Vgdisplay bioVG | grep "Total PE"
>
> 6. I need to create three logical volumes of specific size. Do I use
> lvcreate for this?
Yes, precisely.
> lvcreate -L 200G -nmysqlLV bioVG
>
> lvcreate -L 200G -nworkspaceLV bioVG
>
> lvcreate -L 20G -nwebservicelLV bioVG
>
> The rest is unallocated and is free to use at later stages.
>
>
> 7. When and how do we create a file system (analogous to using mkfs)?
When? As soon as you have run lvcreate.
How? The same way as with partitions.
Your logical volumes have names, /dev/bioVG/mysqlLV,
/dev/bioVG/workspaceLV, /dev/bioVG/webservicelLV. See the format:
/dev/<vgname>/<lvname> ? Now, just use mke2fs this way:
mke2fs -j /dev/bioVG/mysqlLV
and so on, assuming you want ext3 filesystems.
> 8. Mount the volumes I have created as follows
>
> mount /dev/bioVG/mysqlLV sqlhome
> mount /dev/bioVG/workspaceLV workspace
> mount /dev/bioVG/webserviceLV webservice
Well, you will probably want to make fstab entries like
/dev/bioVG/mysqlLV /sqlhome ext3 defaults 1 2
/dev/bioVG/orkspaceLV /workspace ext3 defaults 1 2
/dev/bioVG/webserviceLV /webservice ext3 defaults 1 2
The mount points must be fully pathed (from /).
Then you can (the first time)
mount /sqlhome
mount /workspace
mount /webservice
> Thanks for your help.
>
> Cheers ../Murli
Cheers,
--
Bob McClure, Jr. Bobcat Open Systems, Inc.
bob@(protected) http://www.bobcatos.com
The best things in life aren't things.
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