Server Proxy VCB does need a dedicated Volume?

Hello

Server Proxy VCB must a LUN or a Volume dedicated to save snapshots or these snapshots are housed in the volume source VMFS iteself?

Jaikrit Negi

(VCP, BCCFP, ASFS)

Hello

To clarify - when using VCB, the first thing that is done is to create a snapshot of the virtual machine. This snapshot will be created when the virtual machine is (VMFS etc.) default.

After that (in the case of a full backup), the VCB proxy will copy the entire virtual disk (*-flat.vmdk) storage that resides on the VCB proxy server. Then a 3rd third party tool can empty these files (tape, VTL etc.).

So yes, the snapshot is created on VMFS. The virtual disk itself is temporarily stored on a drive connected to the VCB proxy (as much as you put the mount point). So don't forget your VCB proxy needs to have at least enough free disk space to facilitate your largest virtual disk to back up!

When you use a file-level mount, excessive disk space on the proxy is not necessary; then you have really a 'view' in the virtual disk.

Virtual disk writes are temporarily stored in the snapshot on VMFS file. After the VCB backup, you (or the 3rd party software backup) disassemble the medium and the snapshot is deleted. Beware, VCB has a tendency to 'forget' to remove the snapshot sometimes!

Tags: VMware

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