Sony SDX-800V/R manual Append Partition example procedure

6.Command Specification MODE SELECT

Append Partition example procedure:

Start

⇓

Mode Sense Page 11h

⇓

Can I create one more new

partition?

⇓

Log Sense

(Page 3Dh; PC 0016h)

⇓

Go to the Last Partition

⇓

Mode Select Page 32h

⇓

Done

Check Max Additional Partitions

IF (Max Additional Partitions) ≥ 1 THEN you can create a new partition.

Yes

Get Last Partition Number

Change Partition.

Append partition.

Note 1: The partition to be appended inherits the conditions previously set by the Mode Select Page 31h.

Note 2: Example 1:

If the entire tape capacity is 200Gbyte.

This example does not contains formatting overhead. AIT mode tape with two partitions. P0 = 20 GB, P1

=230 G. P1 contains 40 GB of old data. Mode Select Page 32h Append Partition Page indicates 5 GB for the partition size. After the Mode Select command returns Good status we have the following:

P0 = 20 GB

P1 = 40 GB(old data), + 10G of Append space = 50G P2 = 230 GB – 50G = 180G

After this command completes Unit Attention condition will be set for other Initiators, with ASC/ASCQ set to 2A01, Mode Parameters changed. After this command Mode Sense page 11h will show the following:

Additional Partition = 2

P0 = 20 GB

P1 = 50 GB

P2 = 230 GB – 50 GB = 180 GB

Note 3: After partition appended, the Last Partition Number field of Volume Information in MIC indicates a valid value, while the value in the Last Partition Number field of Volume Information on tape is not valid.

Note 4: The Append Partition Page operation is not allowed when the WP tab is set.

Note 5: Append Partition Page writes all buffered data to tape, before appending a partition.

6-52 SONY AIT-3Ex drive SDX-800V series Ver.1.1