Date: Tue, 21 Apr 1998 11:21:13 -0700 From: Julian Elischer <julian@whistle.com> To: Dan Strick <dan@math.berkeley.edu> Cc: hans@artcom.de, pantzer@ludd.luth.se, freebsd-scsi@FreeBSD.ORG Subject: Re: SCSI-Disk hot-swappability? Message-ID: <353CE399.398A68D@whistle.com> References: <199804211749.KAA13234@rain.berkeley.edu>
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Dan Strick wrote: > > > Why not just type this in your configfile for the kernel? > > > > disk sd0 at scbus0 target 0 > > disk sd1 at scbus0 target 1 > ... > > > The sd driver seems to be prepared for this, but the necessary changes to > > > scsiconf.c do not seem to be there. We'd also need a set of utilities to > > > make the kernel reprobe a given SCSI device. > > > > The manpage for scsi tells me that it can do that. > > There may be a problem. I tried it once and it didn't work. > This was a while back, so perhaps it is old news. > > I actually prefer static drive unit definitions over dynamic > definitions (at least for the first few drives) because then file > systems don't move around on you when a drive dies. > > Some additional considerations: > > 1) It would be nice if the SCSI disk driver would react to > an attention condition on a drive by reloading the disk > labels. It would be nice if this produced console/syslog > messages. This is done by the DEVFS/SLICE code, but it's not quite correct at this time.. It doesn't know it it's the same disk or just one formatted the same so it assumes the worst and invalidates the filesystems. > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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