SANRAD V-Switch manual Replicating Data in a Mirrored Volume, Volume Configuration 101

If you are working in

aV-Switch cluster, this volume must be configured on both V-Switches.

Example:

In Figure 48, a mirrored volume, Mirrored 1, is created using two children, Simple 6 and Simple 11.

volume create mirror –vol Mirrored1 –ch Simple6 –ch Simple11

Mirrored

Volume 1

	JBOD 1
Disk 1	Disk 2
Simple 1	Simple 3
Simple 2	Simple 4
Disk 3	Disk 4
Simple 5	Simple 6

	JBOD 2
Disk 5	Disk 6
Simple 7	Simple 9
Simple 8	Simple 10
Disk 7	Disk 8
Simple 11	Simple 12
	10059

Figure 48. Mirrored Volume 1

Replicating Data in a Mirrored Volume

If one child of a mirrored volume, the source, already contains data, the data can be replicated to the second child, the destination, using the CLI command volume mirror sync. This is done on-line while the source volume is still exposed. See how to expose volumes “Volume Exposure & Security,” page 107.

Data can also be replicated offline using the CLI command volume copy create. On-line data replication is slower but allows the source volume to remain on-line with no interruption of service to the volume host(s). Off- line replication is faster than on-line replication but both the source and destination volumes must be off-line which can create an interruption of service to the volume host(s).

Chapter 6: Volume Configuration 101