ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
3-62
SCSI Interface
VolTag
The Volume Tag field (VolTag) indicates whether the volume tag
information associated with each tape cartridge should be
returned as part of the status information. The volume tag (or bar
code) is updated for each tape cartridge whenever it is moved with
a Move Medium Command. The volume tag information for all
tape cartridges can also be updated using the Initialize Element
Status Command. Since tape cartridges are a single-sided media,
only a single volume tag is supported per tape cartridge.
Element Type Code
This field is used to indicate which type of element (medium
transport, storage, import/export, data transfer, or all) is to be
reported by this command.
0
indicates all element types reported.
1
indicates medium transport element.
2
indicates storage element.
3
indicates import/export element.
4
indicates data transfer elements.
Starting Element Address and Number of Elements
These fields are used to select the range of elements to be reported.
Within this range no status information will be reported for an
undefined element address. Only elements matching the indicated
type will be returned. No elements with an address smaller than
the Starting Element Address will be reported. Beginning with the
first defined element with an address greater than or equal to the
Starting Element Address, all defined, type matching elements will
be reported until reports for the indicated number of elements
have been returned.
Allocation Length
This field specifies how much memory the host has set aside to
store the status information returned by the library. This field
should be set to a number which is large enough to store the status
information for the requested number of elements. If it is not, the
library only reports the status information for the number of
elements whose status information fits within the allocated space.
