Dell PowerVault TL2000 User Manual download pdf (Page 87)

SEND VOLUME TAG (B6h)

The SEND VOLUME TAG command transfers a volume tag template to be used for a search of existing

volume tag information or new volume tag information for one media changer element address. The

function of the command is conveyed by the Send Action Code field value. The REQUEST VOLUME

ELEMENT ADDRESS command may be used to transfer the results of a translate search operation.

Bit 7 6 5 4 3 2 1 0

Byte

0 Operation Code (B6h)

1 LUN Reserved Element Type Code

2 (MSB) Element Address

3 (LSB)

4 Reserved

5 Reserved Send Action Code

6 - 7 Reserved

8 (MSB) Parameter List Length

9 (LSB)

10 Reserved

11 Control

Field descriptions:

Element Type Code:

The Element Type Code field specifies an element type specification as defined in the Read

Element Status command. If the Send Action Code field indicates a translate operation, this field

indicates the element types to be searched. If the value is zero, all element types are candidates

for a translate operation. If the Send Action Code does not indicate a translate, this field shall be

treated as reserved.

Element Address:

The Element Address field gives the media changer element address whose interpretation

depends on the Send Action Code field. When the Send Action Code field is a translate, the

Element Address field gives the starting element to be examined for the search operation. When

the Send Action Code field is assert, replace, or undefined, the Element Address field gives the

specific Element Address where the volume tag information for a volume is to be modified.

Send Action Code:

The Send Action Code field gives the function to be performed by this command as specified in

next table:

Code Description

0h Translate - search all defined volume tags

1h Translate - search only primary volume tags

4h Translate - search all defined tags, ignore sequence numbers

5h Translate - search primary tags, ignore sequence numbers

8h Assert - as the primary volume tag, if tag now undefined

Ah Replace - the primary volume tag - current tag ignored

Ch Undefine - the primary volume tag - current tag ignored

Chapter 3. Supported SCSI Commands 3-73

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