Dell PowerVault TL2000 User Manual download pdf (Page 18)

INQUIRY (12h)

The INQUIRY command requests that information regarding parameters of the medium changer be sent to

the initiator. The media changer can provide two categories of data in response to an inquiry command:

Standard Inquiry Data and Vital Product Data. Standard Inquiry Data contains basic data about the

Medium Changer and Vital Product Data can comprise several pages of additional data. Each Vital

Product Data page requires a separate INQUIRY command from the initiator. An INQUIRY command is not

affected by, nor does it clear, a Unit Attention condition.

Bit 7 6 5 4 3 2 1 0

Byte

0 Operation Code (12h)

1 LUN Reserved Obsolete EVPD

2 Page Code

3 (MSB) Allocation length

4 (LSB)

5 Control

Field descriptions:

EVPD:

Enable Vital Product Data. An enable vital product data (EVPD) bit of one specifies that the device

server shall return the optional vital product data specified by the page code field. Note If the

EVPD bit is set to 0, the page code must be 00h.

Page Code:

This field contains the page number of the vital product data page to be returned for the INQUIRY

command, if the EVPD bit is set to 1. The following pages are supported:

v 00h - Supported vital product pages

v 80h - Unit serial number page

v 83h - Device Identification page

v C0h - Firmware build information page

v D0h - Vendor Specific Page

v FFh - Vendor Use Only

Allocation

Length:

Specifies the number of bytes of inquiry information the media changer is allowed to return to the

initiator during the command s data-in phase. Error status is not returned if the value in this field

truncates the requested information.

Standard Inquiry Data

Bit 7 6 5 4 3 2 1 0

Byte

0 Peripheral Qualifier (0) Peripheral Device Type (08=Medium Changer)

1 RMB (1) Reserved

2 Version (5)

3 Obsolete Obsolete NormACA

(0)

HiSup Response data format (2)

4 Additional length (43h)

3-4 TL2000 and TL4000 SCSI Reference

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 115 116

Comments to this Manuals

No comments

Dell PowerVault TL2000 User Manual Page 18

Comments to this Manuals

Related products and manuals for Computer hardware Dell PowerVault TL2000