Date: Tue, 31 Oct 2000 20:32:36 -0800 (PST) From: Tom Samplonius <tom@sdf.com> To: The Hermit Hacker <scrappy@hub.org> Cc: freebsd-scsi@freebsd.org Subject: Re: iostat: tps for SCSI drives ... Message-ID: <Pine.BSF.4.05.10010312029050.24950-100000@misery.sdf.com> In-Reply-To: <Pine.BSF.4.21.0011010049310.494-100000@thelab.hub.org>
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On Wed, 1 Nov 2000, The Hermit Hacker wrote: > On Tue, 31 Oct 2000, Tom Samplonius wrote: > > > > > On Tue, 31 Oct 2000, The Hermit Hacker wrote: > > > > > Okay, how do I read this: > > > > > > pgsql# camcontrol tags da0 -v > > > (pass0:ahc0:0:0:0): dev_openings 41 > > > (pass0:ahc0:0:0:0): dev_active 0 > > > (pass0:ahc0:0:0:0): devq_openings 41 > > > (pass0:ahc0:0:0:0): devq_queued 0 > > > (pass0:ahc0:0:0:0): held 0 > > > (pass0:ahc0:0:0:0): mintags 2 > > > (pass0:ahc0:0:0:0): maxtags 255 > > > > I wonder why dev_openings is lower than maxtags? > > anything I can look at/check to find out? Don't know... do you get kernel messages that the kernel is reducing openings? Lots of stuff in the archives about how the kernel can reduce openings if a drive reports errors. If openings is getting lower, that must be happening. See what it is like after a fresh boot. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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