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| author | Erik Zaadi <erikz@il.ibm.com> | 2012-12-12 17:49:33 +0200 |
|---|---|---|
| committer | Erik Zaadi <erikz@il.ibm.com> | 2013-02-18 16:51:46 +0200 |
| commit | 933365a583daa5b9eabcf2397c3e7b803e7af74c (patch) | |
| tree | ee35d83f788338a3de5dee6bac84176541682023 /nova/exception.py | |
| parent | ae888be9a356e88589d0ceeb5a777a627c284a4d (diff) | |
| download | nova-933365a583daa5b9eabcf2397c3e7b803e7af74c.tar.gz nova-933365a583daa5b9eabcf2397c3e7b803e7af74c.tar.xz nova-933365a583daa5b9eabcf2397c3e7b803e7af74c.zip | |
Enable multipath for libvirt iSCSI Volume Driver
Implements: blueprint libvirt-volume-multipath-iscsi
nova/virt/libvirt/volume.py:LibvirtISCSIVolumeDriver can now
make use of multipath (behavior defined by use_multipath flag)
runs a scsi inquiry to the storage vendor (iSCSI portal)
asking for more portals, logins to the discovered portals and uses a
multipath device (/dev/mapper/XX) instead of a singlepath device
(/dev/disk/by-path/ip-IP:PORT-iscsi-IQN-lun-X).
This improves IO speed and robustness, since if one iSCSI portal goes
down, there are still others to take care of IO.
Change-Id: I30489234b8329f576cf2cbb0ef390670dbee5b95
Diffstat (limited to 'nova/exception.py')
0 files changed, 0 insertions, 0 deletions