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  build
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__init__.py 820 Bytes
asyncnotifier.py 6 kB
backend.py 105 kB
bdev.py 70.5 kB
bootstrap.py 28.7 kB
cli.py 95.8 kB
cmdlib.py 408.7 kB
compat.py 3.7 kB
config.py 62.4 kB
constants.py 34 kB
daemon.py 23.5 kB
errors.py 9.6 kB
ht.py 4 kB
jqueue.py 58.5 kB
jstore.py 3.7 kB
locking.py 48.2 kB
luxi.py 15.7 kB
mcpu.py 16.1 kB
netutils.py 13.6 kB
objects.py 43.4 kB
opcodes.py 36.7 kB
qlang.py 2.6 kB
query.py 35.2 kB
rpc.py 46.7 kB
runtime.py 3.3 kB
serializer.py 4.5 kB
ssconf.py 15.2 kB
ssh.py 8.6 kB
storage.py 12.7 kB
uidpool.py 11.8 kB
workerpool.py 13.3 kB

Latest revisions

# Date Author Comment
a593b742 04/20/2011 11:20 am Apollon Oikonomopoulos

Shared storage instance failover

Modify LUFailoverInstance to enable shared storage instances to failover.
Shared storage instance failover requires either a target node or an
iallocator to determine the target node. If none is given, the cluster default...
1477a16f 04/20/2011 11:20 am Apollon Oikonomopoulos

KVM: use cache=none for shared disk templates

Disable host cache for externally mirrored disks to avoid cache incoherency.
Without this, migrations between the same two nodes may end up in disk
corruption.

This is a runtime override of cluster defaults, mostly a workaround....
2cb78cc7 04/20/2011 11:20 am Apollon Oikonomopoulos

Add DTS_MIRRORED frozenset

Use DTS_MIRRORED to indicate mirrored disk templates that allow
migrations/failover.

DTS_MIRRORED is the union of DTS_EXT_MIRROR and DTS_NET_MIRROR.

Signed-off-by: Apollon Oikonomopoulos <>
Reviewed-by: Michael Hanselmann <>...
69266fae 04/20/2011 11:20 am Apollon Oikonomopoulos

Add bdev_sizes RPC call

The bdev_sizes multi-node RPC call returns the sizes of the requested
block devices on the desired nodes. Its intended use is to verify the
existence of a block device on a given node for shared block storage
support.

Block device paths are expected to lie under constants.BLOCKDEV_DIR...
391d0261 04/20/2011 11:20 am Apollon Oikonomopoulos

Shared block storage support

This patch introduces basic shared block storage support.

It introduces a new storage backend, bdev.PersistentBlockDevice, to
use as a backend for shared block storage. The new bdev requires a new
BLOCKDEV_DRIVER_MANUAL constant with the value "manual" and uses it as...
5e2e3283 04/20/2011 11:20 am Apollon Oikonomopoulos

IAllocator changes to work with shared storage

Make cmdlib.IAllocator shared-storage-aware. IAllocator requires secondary
nodes only on DTS_NET_MIRROR disk templates and requires no secondaries for
DTS_EXT_MIRROR templates.

Signed-off-by: Apollon Oikonomopoulos <>...
36a072e8 04/20/2011 11:20 am Apollon Oikonomopoulos

Migration and failover: add iallocator and target_node slots

Add iallocator and target_node slots to OpMigrateInstance and
OpFailoverInstance to facilitate shared-storage-backed instance mobility. Add
iallocator slot to OpMigrateNode (no explicit target_node in this case)....
04967d3a 04/20/2011 11:20 am Apollon Oikonomopoulos

CLI changes to facilitate shared storage migration/failover

Add DST_NODE_OPT to cli.py to use for directly specifying the target node
during migration/failover.

gnt-instance failover/migrate also get passed an iallocator option.

gnt-node failover/migrate get only a target_node option....
b9187ba2 04/20/2011 11:20 am Apollon Oikonomopoulos

Shared storage instance migration

Modify LUMigrateInstance and TLMigrateInstance to allow instance migrations for
instances with DTS_EXT_MIRROR disk templates.

Migrations of shared storage instances require either a target node, or an
iallocator to determine the target node. If none is given, the cluster default...
9a833381 04/20/2011 11:20 am Apollon Oikonomopoulos

Shared storage node migration

Modify LUNodeMigrate to provide node migration for nodes with instances using
shared storage. gnt-node migrate has to be passed an iallocator for migration
of shared storage instances to be performed. When using a shared storage...

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