Import/export element descriptor, Table 63 import/export element descriptor – Dell PowerVault ML6000 User Manual

Page 74

Advertising
background image

64

SCSI Commands

Additional Sense Code Qualifier – If the element is in an abnormal state, this field will be set to a value
as described in

Table 71

on page 72.

Source Valid (Svalid) – This field is set to 1 if the Source Storage Element Address field is valid, otherwise
it is set to 0.

Invert – This field is set to 0. The library does not support inverting media.

Source Storage Element Address – If the Source Valid field is set to 1, this field will contain the element
address of the last storage element the media was moved from. It may be the same as this element.

Primary Volume Tag – If requested, this field contains the volume tag (bar code label) information for
media residing in this element address. Five to sixteen character barcode labels are supported.

Import/Export Element Descriptor

All fields are the same as for the Storage Element Descriptor except:

Element Address – This field contains the element address of the import/export element.

Import Enable (InEnab) – A value of one indicates that the element supports movement of media into the
scope of the Media Changer device. A value of zero indicates that this element does not support import
actions. The library returns a value of one for all import/export elements.

Export Enable (ExEnab) – A value of one indicates that the element supports movement of media out of
the scope of the Media Changer device. A value of zero indicates that this element does not support export
actions. The library returns a value of one for all import/export elements.

Import/Export (ImpExp) – A value of one indicates that media present in the element was placed there by
an operator. A value of zero indicates that media present in the element was placed there by a medium
transport element.

Table 63

Import/Export Element Descriptor

Bit

Byte

7

6

5

4

3

2

1

0

0

Element Address

1

2

Reserved

InEnab

ExEnab

Access

Except

Imp/Exp

Full

3

Reserved

4

Additional Sense Code

5

Additional Sense Code Qualifier

6

Reserved

8

9

Svalid

Invert

Reserved

10

Source Storage Element Address

11

12

Primary Volume Tag Information

(Field omitted if PVolTag = 0; remaining fields move up)

47

48

Reserved

51

Advertising