Re: [linux-lvm] using LVM with SAN

[Luca Berra <bluca comedia it>]

On Wed, Sep 20, 2006 at 05:08:53PM +0200, de Toma Alessandro wrote:
> Dear All,
> we have create a vg on a LINUX RH ES4 UP2.
> The storage is a CX500 and the multypath software is POWERPATH 4.5.
>
> During the creation of VG we are this worning:
> # vgcreate VolGroupSUN01 /dev/emcpowerb1
> Found duplicate PV fPxLqOcxkEO2Umku09icOn5oJ1IC5H84: using /dev/sdc1 not
> /dev/emcpowera1
....
> Volume group "VolGroupSUN01" successfully created
> This is correct?

no, please edit /etc/lvm/lvm.conf and set up filters so lvm will only
use /dev/emcpower* devices.

note that if your root vg is on local scsi disks you will have to add
those to the filter as well.

eg:
  filter =[ "a|/dev/sda[1-9]*|", "a|/dev/sdb[1-9]*|", "a|/dev/emcpower.*|", "r|.*|" ]


> When we umount the volume:
> [root mezzicluslin02 ~]# umount /dev/VolGroupSUN00/LogVolSUN00
> /home/SUNstorage
> umount: /dev/mapper/VolGroupSUN00-LogVolSUN00: not mounted
> umount: /dev/mapper/VolGroupSUN00-LogVolSUN00: not mounted
>
> This is correct?
no, umount takes only 1 parameter, either the device or the mount point.

L.

--
Luca Berra -- bluca comedia it
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