beautypg.com

HP Array Controller HSG V8.7 Software User Manual

Page 123

background image

Creating Storagesets

3–45

TRANSPORTABLE is especially useful for moving a disk drive
from a workstation into your StorageWorks subsystem. When you
add a disk drive as transportable, you can configure it as a single-
disk unit and access the data that was previously saved on it.

Transportable devices have these characteristics:

n

Can be interchanged with any SCSI interface that does not use
the device metadata, for example, a PC.

n

Cannot have write-back caching enabled.

n

Cannot be members of a shadowset, storageset, or spareset.

n

Do not support forced errors.

Consider these points when using the TRANSPORTABLE switch:

n

Before you move devices from the subsystem to a foreign
subsystem, delete the units and storagesets associated with the
device and set the device as transportable. Initialize the device
to remove any metadata.

n

When you bring foreign devices into the subsystem with
customer data follow this procedure:

1.

Add the disk as a transportable device. Do not initialize it.

2.

Copy the data the device contains to another nontransportable
unit.

3.

Initialize the device again after resetting it as nontransportable.
Initializing it now places metadata on the device.

n

Storagesets cannot be made transportable. Specify
NOTRANSPORTABLE for all disks used in RAIDsets,
stripesets, and mirrorsets.

n

Do not keep a device set as transportable on a subsystem. The
unit attached to the device loses forced error support which is
mandatory for data integrity on the entire array.