Specifications

7–11
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference 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: Compaq 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.