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Archive for the ‘SAF-TE’ Category

Example SAF-TE Report

December 30th, 2008

Below is a  dump from a DotHill SAF-TE compliant enclosure, using SANtools smartmon-ux software. The text in RED indicates the SAF-TE components.  This was run on a Windows-based O/S, but the software is ported to Solaris, LINUX, IRIX, AIX, HP-UX, and other UNIX Variants.

smartmon-ux -I+ -E+ \\.\SCSI3:
SMARTMon-ux [Release 1.13, Build 4-SEP-2002] - Copyright 2002 SANtools, Inc. http://www.SANtools.com
Discovered CNSi JSS122 S/N " " on \\.\SCSI3: (processor) [SAF-TE] [Adapter/ID.LUN=0/0.6]
Inquiry Text Page Data - ANSI defined fields
  Device Type:                         processor
  Peripheral Qualifier:                Connected to this LUN
  Removable Device:                    NO
  ANSI Version:                        3 (SPC ANSI X3.301:1997)
  ISO/IEC Version:                     0
  ECMA Version:                        0
  Vendor Identification:               CNSi  
  Product Identification:              JSS122        
  Firmware Revision:                   L421
 Read more...

Diagnostics, Enclosure Management, SAF-TE ,

SAF-TE Specification

December 30th, 2008

SAF-TE: SCSI accessed fault-tolerant enclosures interface specification

(Editor’s note: Below from Intel’s SAF-TE site)

This specification defines a set of SCSI commands for setting drive status information, including status for RAID arrays, into a (SAF-TE compliant) disk drive array enclosure. The drive array enclosure may be a separate enclosure, or the same enclosure. The specification also defines commands for managing hot-swap drive slots and returning environmental health information for a drive enclosure.

The status commands are typically used by the enclosure manufacturer to assert lights or other indicators Read more…

Enclosure Management, SAF-TE , ,

Are there any industry standards for managing intelligent enclosures

December 30th, 2008

Yes – SES, which stands for SCSI ENCLOSURE SERVICES, is the ANSI standard by which Fibre Channel-attached subsystems adhere to.  SCSI enclosures “speak” SAF-TE, which stands for SCSI Accessed Fault Tolerant Enclosures.

The SES specification has a great deal of intelligence, which allows for not only reporting health, but changing fan speeds, manipulating the LEDs, and controlling audible alarms.   SAF-TE is a rather dumb interface that reports the most basic information in more of a pass/fail form.

Enclosure Management, SAF-TE, SES , ,

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