0
votes
0answers
113 views

Ubuntu 12.04 multipath boot device with LVM

I'm bootstrapping Ubuntu nodes using cobbler, with a predefined preseed. Due to a bug in Ubuntu: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959749 it doesn't work too well to install on a ...
1
vote
1answer
822 views

Multipath device unpresented to host. How to delete it from LVM and the system?

OS: Red Hat Enterprise Linux AS release 4 Storage people had unpresented a couple of disks previously exported to the system (things that... sometimes happens). Well, there is no problem with this ...
3
votes
1answer
1k views

Why does my lvm2 volume group only work with multipath device mapper and not powerpath?

My server is an Oracle Enterprise Linux 5.4 (RHEL5) on an hp blade (x64) with qlogic HBAs connected to an EMC clariion SAN. We are migrating from multipath to powerpath, because emc and the company ...
5
votes
1answer
608 views

Home-grown SAN — topology ideas?

I'm interested in hand-rolling a SAN solution on Linux with the following technologies: iscsi mdadm raid lvm multipath xfs/gfs/??? teamed NICs Hardware-wise, I'm thinking of 2 x gigE (or better) ...
0
votes
1answer
572 views

LVM issues when adding a newly-carved LUN from a Clariion - pvcreate fails

This seems to be a semi-common issue asked, but I have not yet found a good solution. I try the following: [root@localhost ~]# pvcreate /dev/sdc Can't open /dev/sdc exclusively. Mounted filesystem? ...
0
votes
1answer
881 views

Adding multipath to server and change lvm to use new devices

Hi I have a server running RHEL5 (HP Proliant DL365) connected to a EVA. LVM is used for the SAN disks like this /dev/sdav VolGroup09 lvm2 a- 150.00G 90.00G /dev/sdbi VolGroup08 ...