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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....
9419c980 04/20/2011 11:20 am Apollon Oikonomopoulos

Shared file support for tools/burnin

Make burnin work with -t sharedfile and update burnin's help.

Shared block storage support is not included, as currently there is no way to
provision shared block storage from within Ganeti.

Signed-off-by: Apollon Oikonomopoulos <>...
88f8f0f7 04/20/2011 11:20 am Apollon Oikonomopoulos

Rename DTS_NET_MIRROR to DTS_INT_MIRROR

DTS_INT_MIRROR better contrasts DTS_EXT_MIRROR.

Signed-off-by: Apollon Oikonomopoulos <>
[: updated patch for changed context]
Signed-off-by: Iustin Pop <>
Reviewed-by: Iustin Pop <>
b94590c6 04/20/2011 11:20 am Iustin Pop

Instance failover: fix bug for INT_MIRROR cases

Patches db366d9a and aac4511a added support for EXT_MIRROR instances,
but inadvertently introduced a bug: for INT_MIRROR cases, we don't
need (actually we can't support) neither an iallocator nor a target
node....
dc5377f8 04/20/2011 11:20 am Apollon Oikonomopoulos

Allow disk adoption during disk addition

It is now possible to allow adopting a disk during gnt-instance modify time, as
follows:

gnt-instance modify --disk add:adopt=/path/to/disk (blockdev)
or
gnt-instance modify --disk add:adopt=<lvname> (plain)

We do the same checks as during instance creation....
c8a9285e 04/20/2011 11:20 am Apollon Oikonomopoulos

Temporary workaround for hail to work with shared storage

Signed-off-by: Apollon Oikonomopoulos <>
f1ea1bef 04/20/2011 11:20 am Apollon Oikonomopoulos

Fix parts of shared storage migration

Commit faaabe3c fixed failover behaviour for DTS_INT_MIRROR instances, however
it broke migration for DTS_EXT_MIRROR instances, by moving iallocator and node
checks from LUInstanceMigrate to TLMigrateInstance. This has the side-effect...
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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