Hi!
I'm just in process of setting up an ovirt environment again. Using ovirt node
HV 2.3.0, on fibre channel storage. I'm forced to use Fedora 16, since Fedora
17 doesn't work with fibre channel storage or at least not with Qlogic HBA's.
I've allready told the list and Fedora forum that.
I asked some related questions before around fc storage with oVirt, and I will
be back with more.
Anyway, I set up the oVirt node HV on a single LUN of 2 Gb, I've done it before
on 1 Gb, and I tried it on 200 Mb. 200 Mb was too small, because it stopped at
25% and didn't want to go further. But the installation started without
reporting it beeing too small, which is a bit odd, isn't it?
Anyway, 1 or 2 Gb works fine! When I enter the shell in the HV and run pvs the
first time, I see this:
[root@node1 admin]# pvs PV VG
Fmt Attr PSize PFree /dev/mapper/3600144f0e03a46000000501798dd0001p4
HostVG lvm2 a-- 288.00m 0
PSize say's 288.00m.
LUN is a thin provisioned LUN made from qcow2 zfs, so maybe it only reports the
size that are used? Anyway, I just added a second LUN, for using as VM storage.
Here you can see:
[root@node1 admin]# cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: RW/DVD GCC-T10N
Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: OI Model: COMSTAR
Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 01 Vendor: OI Model: COMSTAR
Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 05
[root@node1 admin]#
But when I run pvs again in the HV, the new LUN doesn't show up. Note that I
restarted the HV, because I ran pvs also before restarting it, and thought I
needed to restart it for beeing able to see it through LVM. But LVM haven't yet
touched it, or perhaps not seen it? Is it so that LVM on the HV doesn't see
other LUN's than the first LUN, if it is not there during installation?
Last time I installed, I did the opposite, I installed with system LUN and with
data LUN, and then LVM could see both LUN's, though I couldn't use the data LUN
for storage. I've allready reported that.
So I wonder what is the right way of doing it, install with only system LUN and
than add data LUN after, or install with both system LUN and data LUN?
I suppose it would be the best if both way's worked?
I get back with more info later, when I tried to connect the storage LUN
through the engine...
Rgrds Johan
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