Simplivity Cluster Showing Datastore inaccessible or inactive in VMware Vsphere Client.

Simplivity Cluster showing Virtual Machine (VM) and Datastore in inaccessible state in VMware Vsphere Client.

Symptoms:

In Simplivity Cluster, one more more datastores status is showing inaccessible or inactive for one ore more ESXi Hosts.One more more VMs in the Simplivity cluster showing status "inaccessible".

Also ESXi showing events similar to below.

cpu22:3XXXXX)WARNING: NFS: 3XX: Lost connection to the server omni.cube.io mount point
/mnt/svtfs/0/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX, mounted as XXXXXXXXXXXXXXXX-0000-000000000000 ("SUN_L000")
cpu8:XXXXXX)StorageApdHandler: 265: APD Timer started for ident [25fdcdf9-d882ff30]
cpu8:XXXXXX)StorageApdHandler: 414: Device or filesystem with identifier
[25fdcdf9-d882ff30] has entered the All Paths Down state.

Work Around:


1. First trace the affected ESXi host by verifying each ESXi Datastore and VM status where it showing the status "inaccessible".
2. Restart the OmniStack Virtual Controller (OVC) on the ESXi host that cannot access the datastore.

Note: If the Datacenter have 2 or more OmniStack hosts, migrate all VMs to another Host to perform activity without disruption to VM. If Datacenter have only one OmniStack host, VM should be shutdown before performing any activity and there will be a disruption to the VM.

Permanent Solution:

For OmniStack Software running with v3.0.10, Upgrade the OmniStack Software Version to v3.0.10 Update 2.

For OmniStack Software running with v3.5.1, Upgrade the OmniStack Software Version to v3.5.2 or later.


Grace Restart of the OmniStack Virtual Controller OVC Procedure