Date: Tue, 30 Mar 2010 10:42:02 -0500 From: Peter Steele <psteele@maxiscale.com> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Making sense out of impitool power supply readings Message-ID: <7B9397B189EB6E46A5EE7B4C8A4BB7CB3B65F2D8@MBX03.exg5.exghost.com>
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Is there some trick to know when the power supply sensor readings returned = by ipmitool actually reflects that there is a power supply issue? Our diffi= culty is that no one seems to use the same sensor values when it comes to p= ower supply reporting, and even if there are two power supplies the impitoo= l command may only report a single status. For example, here's one box that= I have: # ipmitool sdr type "Power Supply" PS 1 STATUS | 61h | lcr | 10.0 | 0 unspecified PS 2 STATUS | 62h | lnc | 10.1 | 0 unspecified PS REDUNDANCY | 6Fh | lcr | 19.0 | 0 unspecified Here's another: # ipmitool sdr type "Power Supply" Power Supply | 17h | ok | 10.0 | 0 unspecified And another: # ipmitool sdr type "Power Supply" PS1 PRESENT | 53h | ok | 10.0 | Device Present PS2 PRESENT | 54h | ok | 10.1 | Device Present PDB PRESENT | 55h | ok | 21.0 | Device Present PS1 STATUS | 4Ah | ok | 10.0 | PS2 STATUS | 4Bh | ok | 10.1 | PS REDUNDANCY | 4Dh | ok | 21.0 | Fully Redundant And here's yet another: # ipmitool sdr type "Power Supply" Status | 64h | ok | 10.1 | Presence detected Status | 65h | ok | 10.2 | Presence detected PS Redundancy | 74h | ok | 7.1 | Fully Redundant All of these are systems with dual power supplies. When we query these sens= ors are queried, on some systems "0" means the power supply is online and "= 200" means it's offline, whereas others might user 80 and 180 or 180 and 38= 0. Is there some trick in figuring out what status values means "online", o= r would we have to maintain a table of motherboard/vendor versions and map = these to how to interpret the PS readings?
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