Comment 9 for bug 1446391

Reviewed: https://review.opencontrail.org/10249
Committed: http://github.org/Juniper/contrail-provisioning/commit/0e7a9220eeb53d8149362d395145596f57e5e5f7
Submitter: Zuul
Branch: R2.20

commit 0e7a9220eeb53d8149362d395145596f57e5e5f7
Author: Jeya ganesh babu J <email address hidden>
Date: Tue May 12 12:25:38 2015 -0700

Provision fixes for heartbeat and replica

Closes-Bug: #1446391
Closes-Bug: #1447707
Closes-Bug: #1388449
Closes-Bug: #1446396
Closes-Bug: #1454898
Issues: OSDs flaps because of insufficient heartbeat timeout on
large clusters
Replica configured is overwritten when upgrade or setup_storage
is run again.
Live migration provision doesnt work if there are multiple
subnets
upgrade or setup storage creates new mons when the storage-compute
order changes in the testbed.py
if only ssd-disks is specified the pgs are stuck.
Fix: Configured heartbeat based on the replica size.
Added a configuration variable 'storage_replica_size' in testbed.py
to specify the replica
Addded fix to support multiple subnets for live migration.
The current monitors are not taken into account for the total
monitors. Fix added to take existing monitors into account.
If there is only 'ssd-disks', code added to treat as 'disks'.

Change-Id: I6a373416209756e14242ca437ede32db03d9d785