MEDIA CHANGER COMMANDS M2488 PRODUCT GUIDE
6-42 CG00000-011503 REV. A March 1997
6-4.2 Supported VPD Pages - Page 00h
VPD page 00h returns a list of the vital product data pages supported by this target. The format for
VPD Page 00h is:
Table 6-52. VPD Page Format Field Description
BYTE BIT VALUE DESCRIPTION
0 0-7 The meaning of the Peripheral Qualifier and Peripheral Device Type fields depend
on whether the VPD page is being sent to the initiator as INQUIRY data or is being
received from the initiator as CHANGE DEFINITION data. When being sent as
INQUIRY data, these fields are the same as those defined in the INQUIRY com-
mand description. When being received as CHANGE DEFINITION data, these
fields are ignored.
1 0-7 The Page Code field identifies the format and parameters defined for that VPD
page.
3 0-7 The Page Length field indicates the length in bytes of the VPD parameters that fol-
low. For VPD pages that are permitted to be sent from an initiator via the
CHANGE DEFINITION command, if the initiator does not set this value to the
value that is returned for that page by the INQUIRY command, the target terminates
the CHANGE DEFINITION command with CHECK CONDITION status. The
sense key is set to ILLEGAL REQUEST and the additional sense code is set to
INVALID FIELD IN PARAMETER LIST. For VPD pages requested by an initia-
tor via the INQUIRY command, if the allocation length in the INQUIRY CDB is
too small to transfer all bytes in the VPD page, the page length is not adjusted to
reflect the truncation.
4-N The VPD parameters for each page are described in the following sections.
Table 6-53. INQUIRY Data Format VPD Page 00h - Supported VPD Pages
BITS
BYTES 7 654321 0
0Peripheral Qualifier Peripheral Device Type =08h
1Page Code = 00h
2Reserved
3Page Length = 04h
SUPPORTED PAGE LIST
400h
581h
6 82h
7 C2h