Date: Wed, 26 May 1999 23:23:27 -0400 (EDT) From: "John W. DeBoskey" <jwd@unx.sas.com> To: freebsd-current@freebsd.org Subject: Re: cvs commit: src/sys/i386/isa ida.c Message-ID: <199905270323.XAA66917@bb01f39.unx.sas.com>
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Hi, I'm moving this to -current from -cvs which I beleive is more appropriate... >> Is this a driver for a RAID controller or something else? I'm just >> curious because on the Compaq servers I have there are some disk >> status lights (disk OK/online/failure, etc) on each individual >> hot-swap disk that operate under NT, but not under FreeBSD. Does this >> driver control that hardware monitoring feature on these servers >> (S.M.A.R.T. I would assume)? > >There is a standard for ``SCSI-Attached Fault-Tolerant Enclosures'' >(SAF-TE) which is implemented by some vendors. If an unknown >processor target shows up in your SCSI probe list, that's probably >what you have. I have several machines with two of them: > >pt0 at ahc0 bus 0 target 6 lun 0 >pt0: <ESG-SHV SCA HSBP M2 0.14> Fixed Processor SCSI-2 device >pt0: 3.300MB/s transfers >pt1 at ahc1 bus 0 target 6 lun 0 >pt1: <ESG-SHV SCA HSBP M2 0.14> Fixed Processor SCSI-2 device >pt1: 3.300MB/s transfers > >The way you recognize and talk to them is defined in a Microslop Word >document which you can find floating about under the name >`saftespec.zip'. I have/use Dell enclosures. These show-up at boot-time as: pass6 at ahc0 bus 0 target 6 lun 0 pass6: <DELL 8UWS BACKPLANE 5> Fixed Processor SCSI-2 device pass6: 3.300MB/s transfers I was thinking about how I could talk to this unit so I could write a daemon to monitor all the drives for failures. If a drive fails, I'd like to automatically (somehow) swap to the spare drive and reconstruct. This sounds like a vinum subject (which I have not looked into at all yet). Has anyone actually worked on something like this? Thanks! John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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