From: "Bill Dossett" <Bill.Dossett(a)pb.com>
To: users(a)ovirt.org
Sent: Thursday, April 9, 2015 11:07:36 PM
Subject: [ovirt-users] FW: gluster and multipath
Fumble fingered accidental send…
From: Bill Dossett
Sent: 09 April 2015 11:33
To: users(a)ovirt.org
Subject: gluster and multipath
Hi,
Just got very confused trying to add create an additional brick on my gluster
node (I had created one yesterday and all was fine0
I had already created a partition on my /dev/sdb called sdb1
But when I tried mkfs.xfs (I am using xfs as that was in the example I was
following – if LVM or something else would be better I am open to
suggestions!)
It said /dev/sdb1 no such file or directory – which confused me as this
worked yesterday.
I deleted the partition recreated it and tried and then it said that the
device was busy.
It appears that multipathd is the culprit… but what I am struggling with is
why it worked yesterday?? I may have created the partition before I pushed
the gluster install to it from the ovirt-engine? And does that install multi
pathd and it is now grabbing my devices? It is the only thing I can think
of.
And if that is the case – I guess I have to blacklist these devices in
multipath.conf while I create the partitions? And reboot and then remove the
blacklist and reboot – seems a bit clunky, is there a better way to add
partitions and bricks?
Or I am just in a vortex wormhole of misunderstanding and grasping at stars
to try and pull myself out ?
Thankyou for any advice – especially as this may not be so ovirt or a
question, but it’s what I am working on.
Bill Dossett
Systems Architect
Tech Central – Global Engineering Services
T +1 303 440 3523
M +44 (0)777 590 8612
bill.dossett(a)pb.com
pitneybowes.com
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