Specifying freespace, Understanding how to extend a volume set – HP NetRAID-4M Controller User Manual

Page 249

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Modifying Containers

To work with extending a volume set, you must understand:

The extend volume set attributes you can specify

How to extend a volume set

Extending a volume set in a UNIX environment

Understanding the Extend Volume Set Attributes You can Specify

You use the

container extend volume

command to extend a

volume set. Before extending a volume set, consider the following
attribute you can specify:

freespace

Specifying Freespace

The

freespace

attribute indicates the devices and associated

freespaces used to extend the specified volume set. You can specify
up to 16 freespaces.

In the following example, the

container extend volume

command uses 100MB of freespace from SCSI devices (0,2,0) and
(0,3,0)

to extend the volume set on container 1:

HPN0> container extend volume 1 ((0,2,0), 100M) ((0,3,0), 100M)

Executing: container extend volume 1

((CHANNEL=0,ID=2,LUN=0),104,857,600 )

((CHANNEL=0,ID=3,LUN=0),104,857,600 )

Container 1 expanded.

Understanding How to Extend a Volume Set

This section provides an example that describes how to extend a
volume set.

Before extending a volume set, use the

container list

command

to display information about your containers, as in the following
example. In the example, the Total Size column indicates that
container 0 is 100MB (megabytes) in size. The Scsi C:ID:L column
indicates that container 0 occupies space on SCSI device 2:01:0.

HPN0> container list

Executing: container list

Cluster Num Total Oth Stripe Scsi Partition

Dr Partner Label Type Size Ctr Size Usage C:ID:L Offset:Size

-- ------- ----- ------ ------ --- ------ ------- ------ -------------

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