Date: Mon, 24 Apr 2000 13:58:33 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: sthaug@nethelp.no Cc: ken@kdm.org, freebsd-scsi@FreeBSD.ORG Subject: Re: Safe mounting of one file system on multiple hosts? Message-ID: <Pine.BSF.4.05.10004241358120.87772-100000@semuta.feral.com> In-Reply-To: <75152.956609789@verdi.nethelp.no>
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Huh, well, this looks more like a problem with the target than anything else, but it's hard to say. On Mon, 24 Apr 2000 sthaug@nethelp.no wrote: > > Define 'problems'. > > Like this: > > (da4:ahc2:0:0:2): SCB 0x0 - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0xa > (da4:ahc2:0:0:2): Queuing a BDR SCB > (da4:ahc2:0:0:2): Bus Device Reset Message Sent > (da4:ahc2:0:0:2): no longer in timeout, status = 34b > ahc2: Bus Device Reset on A:0. 10 SCBs aborted > (da4:ahc2:0:0:2): SCB 0x2b - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x8 > (da4:ahc2:0:0:2): Queuing a BDR SCB > (da4:ahc2:0:0:2): Bus Device Reset Message Sent > (da4:ahc2:0:0:2): no longer in timeout, status = 34b > ahc2: Bus Device Reset on A:0. 26 SCBs aborted > (da4:ahc2:0:0:2): SCB 0x19 - timed out in datain phase, SEQADDR == 0x5e > (da4:ahc2:0:0:2): Other SCB Timeout > (da4:ahc2:0:0:2): SCB 0x17 - timed out in datain phase, SEQADDR == 0x5e > (da4:ahc2:0:0:2): Other SCB Timeout > Unexpected busfree. LASTPHASE == 0x40 > SEQADDR == 0x5e > ahc2:A:0: no active SCB for reconnecting target - issuing BUS DEVICE RESET > SAVED_TCL == 0x1, ARG_1 == 0x15, SEQ_FLAGS == 0x0 > ahc2: Bus Device Reset on A:0. 14 SCBs aborted > > As I mentioned, if I turn off tagged queuing on the host channel with > the two LUNs, everything seems to work just fine - but somewhat slower > for certain operations, of course. > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > > > > > > > On Mon, 24 Apr 2000 sthaug@nethelp.no wrote: > > > > > > I would recommend that you test out the controller carefully under high > > > > load conditions if you have more than one array configured on it. > > > > > > > > There have been a number of reports (see the list archives) about problems > > > > with CMD RAID arrays with more than one LUN (i.e. more than one array) > > > > configured. > > > > > > I have two LUNs on one of the host channels, and I can easily provoke > > > problems here (running a few copies of bonnie, for instance) with > > > tagged queueing enabled. If I turn off tagged queueing on the host > > > channel with multiple LUNs (as suggested by Oliver Blasnik > > > <ob@omnilink.net>), there are no problems. > > > > > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-scsi" in the body of the message > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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