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From "Sateesh Chodapuneedi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-5061) Cloudstack doesn't consider storage overprovisioning factor when using thin Provisioning over VMWare VMFS datastores
Date Wed, 06 Nov 2013 17:39:18 GMT
Sateesh Chodapuneedi created CLOUDSTACK-5061:
------------------------------------------------

             Summary: Cloudstack doesn't consider storage overprovisioning factor when using
thin Provisioning over VMWare VMFS datastores
                 Key: CLOUDSTACK-5061
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-5061
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Storage Controller
    Affects Versions: 4.2.0
            Reporter: Sateesh Chodapuneedi
            Assignee: Sateesh Chodapuneedi
             Fix For: 4.2.1


Cloudstack does not let us to create new VMs as it cannot calculate a free space correctly
when using Thin Provisioning with VMware. It calculates space from the size of the volumes
rather then what is truly utilized on the SAN. 

DETAILS
 ===================
 1. DB
 mysql> select p.name, p.pool_type, p.used_bytes, p.capacity_bytes, sum(v.size) as volumes_allocated
from volumes v join storage_pool p on v.pool_id=p.id where v.removed is null group by v.pool_id;
-------------------------------------------------------------------------------------

name  pool_type  used_bytes  capacity_bytes  volumes_allocated  

-------------------------------------------------------------------------------------

PrimaryStorage1  VMFS  804432904192  1023812829184  940446842880  
PrimaryStorage2  VMFS  901673648128  1023812829184  347791687680  

-------------------------------------------------------------------------------------
 2 rows in set (0.01 sec)

2. vCenter reports as the datastore size, storage allocated, and storage used
 Capacity : 953.50GB
 Provisioned Space : 944.76GB
 Free Space : 751.60GB




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