HP C737990900 User Manual

Page 102

102 Commands

The Available Data field specifies the length in bytes of the following data. If

the amount of parameter data sent to the application client is reduced due to

insufficient allocation length, the Available Data field shall not be altered.
A two-byte Attribute ID is returned for each attribute available on the device

server. See

“Attribute ID Values” on page 104

for a description of the Attribute

ID values.

Partition List Service Action
The Partition List service action is used to report the number of partitions that

the device server supports for the specified volume. The Partition Number and

Attribute fields in the CDB are ignored. The information returned is as follows:

The First Partition Number is the first partition available on the specified

volume. Since Ultrium drives do not support multiple partitions, this is 0.
The Number of Partitions Available indicates the number of partitions

available on the specified volume. Since Ultrium drives do not support multiple

partitions, this is 1.

Volume List Service Action
The Volume List service action is used to report the number of volumes that the

device server supports. The Volume Number, Partition Number and Attribute

fields in the CDB are ignored. The information returned is as follows:

The First Partition Number is the first volume. Since Ultrium drives do not

support multiple volumes, this is 0.

(MSB)

Available Data (2)

(LSB)

First Partition Number (0)

Number of Partitions Available (1)

(MSB)

Available Data (2)

(LSB)

First Volume Number (0)

Number of Volumes Available (1)