Date: Fri, 16 Apr 2004 00:11:06 +0200 From: Kenneth Vestergaard Schmidt <kvs@binarysolutions.dk> To: "Moore, Eric Dean" <Emoore@lsil.com> Cc: freebsd-scsi@freebsd.org Subject: Re: IBM x335 onboard LSI 1020 (mpt) poor performance Message-ID: <20040415221106.GB4289@mail.binarysolutions.dk> In-Reply-To: <0E3FA95632D6D047BA649F95DAB60E570442C32C@exa-atlanta.se.lsil.com> References: <0E3FA95632D6D047BA649F95DAB60E570442C32C@exa-atlanta.se.lsil.com>
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On Thu, Apr 15, 2004 at 04:35:58PM -0400, Moore, Eric Dean wrote: > Would you be able to take a scsi bus trace to > see what the negotiated speed over the bus? > Also would you able to see when the driver > loads if the PPR(Parallel Protocal Request) > and WDTR(Wide data tranfer request) were issued > by the driver to both disk drives. If not, then > its possible your running at asyn narrow speeds > on one of the disk, which would be about 5-15 MB/sec. I'm not quite sure how to do that - I've enabled CAMDEBUG and set CAM_DEBUG_FLAGS=CAM_DEBUG_INFO|CAM_DEBUG_CDB - do I also need to set CAM_DEBUG_(BUS|TARGET|LUN) to get debug from boot? I tried a boot -v, and it shows the following: (probe1:mpt0:0:1:0): MODE SENSE(06). CDB: 1a 0 a 0 14 0 (probe1:mpt0:0:1:0): ILLEGAL REQUEST asc:24,0 (probe1:mpt0:0:1:0): Invalid field in CDB (probe1:mpt0:0:1:0): INQUIRY. CDB: 12 1 80 0 ff 0 (probe1:mpt0:0:1:0): ILLEGAL REQUEST asc:24,0 (probe1:mpt0:0:1:0): Invalid field in CDB Not sure if that is relevant or not. Also, there was an "mpt0: soft reset" - unfortunately, I haven't got physical access right now so I can't do a full power cycle. Does that make a difference? -- Best Regards Kenneth Schmidt
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