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Creating a simple volume – SANRAD I3.1.1205 User Manual

Page 103

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Chapter 6: Volume Configuration

6-11

For the rest of the physical volume on Disk 1 to be usable to the Volume
Manager, you must create another subdisk.

subdisk create –d Disk1 –sl 18000000 –sa 18000000 –sd
Subdisk2

Disk 3

Disk 7

Disk 8

100

82

JBOD 1

JBOD 2

Disk 4

Disk 2

Disk 5

Disk 6

Disk 1

Subdisk 1

Subdisk 2

Figure 6-6. Disk 1 with 2 Subdisks

Creating a Simple Volume

The V-Switch

supports a maximum

of 512 volumes.

Before you can build concatenated, mirrored and striped volumes, you
must create simple volumes from each disk or subdisk in your storage
network.

A physical disk or subdisk is converted directly to a virtual simple
volume. A simple volume differs from a transparent volume in that virtual
volume hierarchies can be built on top of simple volumes but not on
transparent volumes. In Figure 6-7, data blocks 1 – 4 are mapped to blocks
5 – 8 of Disk 2.