What is SAF-TE?
SAF-TE stands for SCSI Accessed Fault Tolerant Enclosures. It is an industry-standard specification that allows SCSI-attached subsystems to interface with the enclosure and component electronics, and report state of:
If your enclosure connects via a FibreChannel or SAS cable, then it will use the SES (SCSI Enclosure Services) specification. SES-based enclosures have a more extensive instruction set which allows software to programmatically manipulate fault lights, alarms, etc... ; So if you are using software-based RAID, and SANtoolsŪ software, then you can configure it to turn on the audible alarm and fault or identification LEDs while the operating system rebuilds a LUN.
How do I Monitor Enclosures
SANtool's SMARTMon-UX is ported to all major operating systems (including itanium 64-bit platforms), and will query and monitor all of your SAF-TE and SES enclosures, as well as the devices. It is a full-featured command-line utility suitable for system administrators, OEMs, and storage architects.
SMARTMonUX is a single small-footprint application that:
- Supports SCSI, fibre channel, ATA/SATA, and SAS peripherals, as well as numerous RAID controllers.
- Has mode page editor, and log page viewer with extensive vendor-unique database to report information you didn't know was even possible to reveal.
- Diagnostic self-tests for storage devices, with extensive error log reporting.
- Reports FC transport information via the SNIA common API
- Threshold monitoring, custom scripts, email alerts.
- Extensive disk diagnostics, exercising, burn-in, firmware flashing, secure erase, error injection, block remapping, disk drive resizing, and embedded self-testing ... on whatever O/S the host computer is running.
- Click here to see the manual for the command-line version of SMARTMon-UX.