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Oracle VM User Manual

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Creating a Shared Virtual Disk for HA
High Availability 9-5
# iscsiadm -m node -p 10.2.1.250:3260,4 -T
iqn.1992-04.com.emc:cx.apm00070202838.b1 -o delete
# iscsiadm -m node -p 10.1.1.249:3260,2 -T
iqn.1992-04.com.emc:cx.apm00070202838.a1 -o delete
# iscsiadm -m node -p 10.0.1.249:3260,5 -T
iqn.1992-04.com.emc:cx.apm00070202838.a2 -o delete
5. Verify that only the iSCSI targets you want to use for the server pool are visible:
# iscsiadm -m node
6. Review the partitions by checking /proc/partitions:
# cat /proc/partitions
major minor #blocks name
8 0 71687372 sda
8 1 104391 sda1
8 2 71577607 sda2
253 0 70516736 dm-0
253 1 1048576 dm-1
7. Restart the iSCSI service:
# service iscsi restart
8. Review the partitions by checking /proc/partitions. A new iSCSI device (for
example, sdb) is listed. Determine the share disk volume you want to use and
create the desired partitions (for example, /dev/sdb1) using the fdisk command.
# cat /proc/partitions
major minor #blocks name
8 0 71687372 sda
8 1 104391 sda1
8 2 71577607 sda2
253 0 70516736 dm-0
253 1 1048576 dm-1
8 16 1048576 sdb
9. Format the shared virtual disk from any of the Oracle VM Servers in the cluster.
For example, to create an OCFS2 partition with a 4k block size, 4k cluster size,
64MB journal size, and 16 node slots:
# mkfs.ocfs2 -L mylabel -b 4K -C 4K -J size=64M -N 16 /dev/sdb1
9.2.2 Creating a Shared Virtual Disk Using OCFS2 on SAN
To create a shared virtual disk using OCFS2 on SAN:
1. Review the partitions by checking /proc/partitions. Determine the share disk
volume (for example, sdb) you want to use and create the desired partitions (for
example, /dev/sdb1) using the fdisk command:
# cat /proc/partitions
major minor #blocks name
8 0 71687372 sda
8 1 104391 sda1
8 2 71577607 sda2
253 0 70516736 dm-0
253 1 1048576 dm-1
8 16 1048576 sdb

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Oracle VM Specifications

General IconGeneral
Live MigrationYes
DeveloperOracle Corporation
Storage SupportNFS, iSCSI, Fibre Channel, Local Storage
CategoryServer
Host OS SupportOracle Linux, Red Hat Linux, SUSE Linux
Guest OS SupportOracle Linux, Red Hat Linux, SUSE Linux, Windows, Solaris
ManagementOracle VM Manager
High AvailabilityYes
Network SupportVLAN

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