Vmfs snapshots – HP 3PAR Application Software Suite for VMware User Manual

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Figure 11 Virtual Copy Browser

A Virtual Copy of a VM or Datastore has the following properties:

The Virtual Copy creation time.

The HP 3PAR StoreServ Storage system where Virtual Copy volumes exist.

The Virtual Copy set name (optional).

The number of Virtual Copy volumes in the Virtual Copy.

A list of pairs (source volume, Virtual Copy volume). Each pair can have a list of virtual disks
and/or VM names.

All Virtual Copies are organized in the browser based on their creation times. The browser displays
all relevant metadata so that you can make restore decisions faster and without actually mounting
Virtual Copy volumes.

The data shown in the Virtual Copy browser comes from the metadata repository and may not
reflect the current state of HP 3PAR StoreServ Storage system. It is possible that volumes shown in
the browser may not exist in the HP 3PAR StoreServ Storage system; for example, if a volume is
deleted.

For information about viewing the Virtual Copy browser, see

Figure 45 (page 60)

.

VMFS Snapshots

In order to maintain a VM consistent Virtual Copy, a VMFS snapshot will be created before creating
an HP 3PAR Virtual Copy and the VMFS copy will be deleted when the HP 3PAR Virtual Copy is
created. HP 3PAR Virtual Copies and VMFS snapshots cannot coexist. HP 3PAR Virtual Copy
creation in VM, Datastore, or Remote Copy will fail if there are preexisting VMFS snapshots for
the VM.

NOTE:

When creating a VMFS snapshot, VMware can fail the operation with the message:

“Cannot create a quiesced snapshot because the create snapshot operation exceeded the time
limit for holding off I/O in the frozen Virtual Machine.”

If this message is displayed, the VMware Tools process should be restarted, or reinstalled to resolve
the issue.

About Virtual Copy Management

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