SCSI diagnostic pages

SCSI diagnostic pages

SCSI target devices provide a number of SCSI diagnostic pages. These can be used by a Send Diagnostic command to tell a target device to run a specialised self-test. The Receive Diagnostic Results command is used where the results from the self-test operation are non-trivial.

Most of the common SCSI devices such as disk-drives support only one or two diagnostic pages. SES devices can support many diagnostic pages.

List of SCSI diagnostic pages

SCSI uses a one byte addressing scheme for diagnostic pages, allowing for a total 256 possible pages. There is a standard map of diagnostic page addresses shown below. Note that any given SCSI device type will only support a subset of these diagnostic pages.

Some diagnostic pages have two different meanings depending on whether they are being used for control purposes (Send Diagnostic command) or to interrogate status (Receive Diagnostic Results command). Those cases are shown as double entries in the table below using this convention: "control definition / status definition".

*00h - list of supported diagnostic pages
*01h - SES - configuration
*02h - SES - enclosure control / enclosure status
*03h - SES - help text
*04h - SES - string out / string in
*05h - SES - threshold out / SES threshold in
*06h - SES - obsolete
*07h - SES - element descriptor
*08h - SES - short enclosure status
*09h - SES - enclosure busy
*0Ah - SES - additional element
*0Bh - SES - subenclosure help text
*0Ch - SES - subenclosure string out / SES subenclosure string in
*0Dh - SES - supported SES diagnostic pages
*0Eh - SES - download microcode control / SES download microcode status
*0Fh - SES - subenclosure nickname control / SES subenclosure nickname status
*10h-1Fh - SES - vendor-specific
*20h-2Fh - SES - reserved
*30h-3Eh - reserved
*3Fh - used by the SCSI transport layer
*40h - disk/optical - translate address
*41h-7Fh - reserved
*80h-FFh - vendor-specific


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • SCSI Receive Diagnostic Results Command — The SCSI Receive Diagnostic Results command is used to interrogate the results of a self test. The self test must have been triggered by a previous Send Diagnostic command which would have defined the self test required. This is usually… …   Wikipedia

  • SCSI — Small Computer System Interface, or SCSI (pronounced skuh zee [ [http://www.bartleby.com/61/56/S0175650.html SCSI] . American Heritage Dictionary .] [cite book|title=The Book of SCSI|last=Field|pages=1] ), is a set of standards for physically… …   Wikipedia

  • USB — This article is about the computer bus to connect peripherals. For other uses of USB, see USB (disambiguation). Universal Serial Bus Original logo Type Computer Hardware Bus …   Wikipedia

  • Modbus — is a serial communications protocol published by Modicon in 1979 for use with its programmable logic controllers (PLCs). Simple and robust, it has since become one of the de facto standard communications protocols in the industry, and it is now… …   Wikipedia

  • BIOS — This article is about the personal computer term. For other uses, see Bios. In IBM PC compatible computers, the basic input/output system (BIOS), also known as the System BIOS or ROM BIOS (pronounced /ˈbaɪ.oʊs/), is a de facto standard… …   Wikipedia

  • Apple Lisa — For the MOS 6502 assembler for Apple II computers, see Lisa assembler. Infobox Computer name = Apple Lisa developer = Apple Computer, Inc. type = Personal computer photo = caption = Apple Lisa, with an Apple ProFile external hard disk sitting… …   Wikipedia

  • Norton Utilities — Symantec Norton Utilities 15.0.0.122 running on Windows Vista Developer(s) Symantec Stable release 15.0.0.122 / December 2010, 27; …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”