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3 sg_vpd \- fetch SCSI VPD page and/or decode its response
9 [\fI\-\-page=PG\fR] [\fI\-\-quiet\fR] [\fI\-\-raw\fR]
16 page and decodes it or outputs it in ASCII hexadecimal or binary. VPD pages
21 hexadecimal representing a VPD page response. If the \fI\-\-raw\fR option
24 Probably the most important page is the Device Identification
25 VPD page (page number: 0x83). Since SPC\-3, support for this page
26 has been flagged as mandatory. This page can be fetched by
34 VPD pages" (0x0) VPD page is fetched and decoded.
42 are found in the "Supported VPD pages" VPD page. Pages that cannot be
49 checks are applied on each VPD page's length and the ascending order of VPD
50 page numbers (required by SPC\-4) so bad data may be detected.
52 If the \fI\-\-page=PG\fR option is also given then no VPD page whose page
59 and this utility exits after listing the VPD page names. May be used together
60 with \fI\-\-page=PG\fR where \fIPG\fR is numeric. If so, it searches for the
66 scan part of all of the VPD space (page numbers 0x0 to 0xff) and output any
67 pages found. If this option is given once, the scan starts at page 0x80;
69 scan starts at 0xc0. This option takes no notice of the contents of VPD page
74 If the \fI\-\-page=PG\fR option is not given then the scan finishes at page
75 0xff. if the \fI\-\-page=PG\fR option is given then the scan finishes at
76 page \fIPG\fR. A check is made before the scan to make sure the start page
77 is less than or equal to the finish page; if not the start and finish page
87 page 0x0 (the "Supported VPD pages" VPD page), is to first fetch page 0x0
88 and only if the requested page is one of the supported pages, to go ahead
89 and fetch the requested page.
91 When this option is given, skip checking of VPD page 0x0 before accessing
92 the requested VPD page. The prior check of VPD page 0x0 is known to
100 outputs the requested VPD page in ASCII hexadecimal. Can be used multiple
101 times, see section on the ATA information vpd page.
110 decode the device identification (0x83) VPD page. When used once this option
111 has the same effect as '\-\-page=di'. When use twice then the short form of
112 the device identification VPD page's logical unit designator is decoded. In
113 the latter case this option has the same effect as '\-\-quiet \-\-page=di_lu'.
117 ASCII hexadecimal or binary representing a VPD page (or a standard INQUIRY)
119 also supply the \fI\-\-page=PG\fR option, if not this utility will attempt
120 to guess which VPD page (or standard INQUIRY) the response is associated
132 Information VPD page only shows the signature (in hex) and the IDENTIFY
138 252 is used (apart from the ATA Information VPD page which defaults to 572)
144 \fILEN\fR is 36. See the sg_inq(8) man page for the more information.
146 \fB\-p\fR, \fB\-\-page\fR=\fIPG\fR
147 where \fIPG\fR is the VPD page to be decoded or output. The \fIPG\fR argument
149 separated by a comma. The VPD page abbreviations can be seen by using the
152 trailing 'h'. If one number is given then it is assumed to be a VPD page
156 VPD page is fetched and decoded. If \fIPG\fR is '\-1' or 'sinq' then the
160 If \fIPG\fR is not found in the 'Supported VPD pages' VPD page (0x0) then
167 if not used with \fI\-\-inhex=FN\fR then output requested VPD page in binary.
180 the device from any others on the system. Linux also places some VPD page
182 the last two digits form the hexadecimal VPD page number whose binary
185 Some VPD pages (e.g. the Extended Inquiry VPD page) depend on knowing
187 in that VPD page. This option together with the \fI\-\-all\fR,
188 \fI\-\-examine\fR or \fI\-\-page=PG\fR allows this utility to process
194 re\-used the numbers at the beginning of the vendor specific VPD page
195 range (e.g.  page 0xc0) and this option is a way of selecting only those
199 If this option is used with \fI\-\-page=PG\fR and \fIPG\fR is an acronym
201 \fIVP\fR is used to choose the which vendor specific page (e.g. sharing
202 page number 0xc0) to decode.
209 .SH ATA INFORMATION VPD PAGE
210 This VPD page (0x89 or 'ai') is defined by the SCSI to ATA Translation
217 To unclutter the output for this page, the signature and the IDENTIFY (PACKET)
228 Since some VPD pages (e.g. the Extended INQUIRY page) depend on settings
230 output as a pseudo VPD page when \fIPG\fR is set to '\-1' or 'sinq'. Also
231 the decoding of some fields (e.g. the Extended INQUIRY page's SPT field)
239 the sg3_utils(8) man page.
241 The examples in this page use Linux device names. For suitable device
242 names in other supported Operating Systems see the sg3_utils(8) man page.
249 Supported VPD pages VPD page:
261 To see the VPD page numbers associated with each supported page then
263 VPD page either its number or abbreviation can be given to
264 the '\-\-page=' option. The page name abbreviations are shown within
266 VPD page is listed:
268    # sg_vpd \-\-page=ei /dev/sdb
270 extended INQUIRY data VPD page:
287 option on the Extended inquiry data VPD page:
289    # sg_vpd \-\-page=ei \-\-long /dev/sdb
291    extended INQUIRY data VPD page:
301 Search for the name (and acronym) of all pages that share VPD page number
304    # sg_vpd \-\-page=0xb0 \-\-enumerate
333 excluding vendor specific VPD pages that start at page number 0xc0:
335    # sg_vpd \-\-all \-\-page=0xbf \-\-raw \-\-inhex=all_vpds.bin
337 In Linux, binary images of some important VPD page responses (e.g. 0, 80h
354 web page.