 | | | Storage space partition | Storage space partition 2006-04-14 - By Nair, Murlidharan T
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-- --Original Message-- --
From: redhat-install-list-bounces@(protected)
[mailto:redhat-install-list-bounces@(protected)] On Behalf Of Bob McClure
Jr
Sent: Friday, April 14, 2006 3:06 PM
To: Getting started with Red Hat Linux
Subject: Re: Storage space partition
On Fri, Apr 14, 2006 at 02:44:35PM -0400, Nair, Murlidharan T wrote:
>
>
> -- --Original Message-- --
> From: redhat-install-list-bounces@(protected)
> [mailto:redhat-install-list-bounces@(protected)] On Behalf Of Bob
McClure
> Jr
> Sent: Friday, April 14, 2006 1:17 PM
> To: Getting started with Red Hat Linux
> Subject: Re: Storage space partition
>
> On Fri, Apr 14, 2006 at 11:46:24AM -0400, Nair, Murlidharan T wrote:
> >
> > <much snippage>
> >
> [root@(protected) ~]# pvcreate /dev/emcpowera
> Physical volume "/dev/emcpowera" successfully created
>
> [root@(protected) ~]# vgcreate bio01VG /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Volume group "bio01VG" successfully created
Okay, now I'm not sure what is going on. It is more common for linux
to identify the drives as /dev/sda, /dev/sdb, etc. rather than
/dev/emcpowera. What might be more useful would be to run
fdisk -l # That's ell as in list.
and see what drives show up. Is it possible that /dev/emcpowera is
the physical SAN disk(s) and that /dev/sdb and /dev/sdc are the
virtual disks created by the SAN? If so, the latter should be
partitioned and pvcreated.
Also note that you created the partition and then ignored it. Had you
used the partition, it would have been called /dev/emcpowera1 when you
ran pvcreate.
Rick Stevens, feel free to jump in here. I'm operating from very
recent and limited experience with a SAN.
> [root@(protected) ~]# vgdisplay bio01VG
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Volume group "bio01VG" doesn't exist
>
> [root@(protected) ~]# vgchange -a y bio01VG
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
> not /dev/emcpowera
> Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
> not /dev/emcpowera
> Unable to find volume group "bio01VG"
I just noticed that the partition it created was called emcpowera1. Here
is part of the output
========================================================
Disk /dev/emcpowera: 700.0 GB, 700079669248 bytes
255 heads, 63 sectors/track, 85113 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/emcpowera1 1 85113 683670141 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
========================================================
I assumed that it would create the partition with the same name so when
I did a pvcreate I used
pvcreate /dev/emcpowera
I am thinking of doing a pvremove I ran the test here is what I got
==================================================================
[root@(protected) /]# pvremove -t -v /dev/emcpowera
Test mode: Metadata will NOT be updated.
/dev/cdrom: open failed: Read-only file system
Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdb
not /dev/emcpowera
Found duplicate PV XKollgX4GsBzbFyJsK13JS62S3P4b0Vr: using /dev/sdc
not /dev/emcpowera
Labels on physical volume "/dev/emcpowera" successfully wiped
Test mode: Wiping internal cach
==================================================================
Then I can start back with pvcreate correct? Also will there be any
consequences of running vgcreate on /dev/emcpowera that used dev/sbd ?
If so how can I fix it?
Thanks for your time ../Murli
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