HP Array Controller HSG V8.7 Software - Manual (Page 284)

B–12 HSG80 User’s Guide
Switches
NOTRANSPORTABLE (Default)
TRANSPORTABLE
Indicates whether a disk drive can be accessed exclusively by
StorageWorks controllers.
If the NOTRANSPORTABLE switch is specified, the controller makes
a small portion of the disk inaccessible to the host. This restricted space
is used to store information (metadata) that is used to improve data
reliability, error detection, and the ability to recover data. Because of
this metadata, only StorageWorks controllers can retrieve data from
non-transportable devices.
Transportable disk drives do not contain any metadata or restricted
areas. Therefore, transportable disks forfeit the advantage metadata
provides but can be moved to a non-StorageWorks environment with
their data intact. Disks that are to be used in storagesets cannot be set as
transportable.
If you specify the NOTRANSPORTABLE switch and there is no
metadata on the unit, the unit must be initialized. If you specify
TRANSPORTABLE for a disk that was originally initialized as a
NOTRANSPORTABLE, you should initialize the disk.
Note DIGITAL recommends you avoid using transportable disks
unless there is no other way to move the data.
TRANSFER_RATE_REQUESTED=ASYNCHRONOUS
TRANSFER_RATE_REQUESTED=20MHZ (Default)
TRANSFER_RATE_REQUESTED=10MHZ
TRANSFER_RATE_REQUESTED=5MHZ
Specifies the maximum data transfer rate at which the controller is to
communicate with the disk drive. The user might need to limit the
transfer rate to accommodate long cables between the controllers and
the device.