Date: Mon, 13 Sep 1999 10:02:09 -0700 From: kachun@pathlink.com (Kachun Lee) To: freebsd-scsi@freebsd.org Cc: gibbs@caspian.plutotech.com Subject: Re: data corruption when using aic7890 Message-ID: <199909131702.KAA75325@pathlink.net> In-Reply-To: <199909111438.IAA08309@caspian.plutotech.com> References: Your message of "Sat, 11 Sep 1999 00:20:28 PDT." <199909110720.AAA06762@salsa.gv.tsc.tdk.com> <199909111438.IAA08309@caspian.plutotech.com>
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In article <199909111438.IAA08309@caspian.plutotech.com>, you say... > >>Please tell me that this hardware doesn't silently corrupt data on a >>FIFO underflow or overflow without at least setting a flag somewhere ... > >I can't tell you what it does as I haven't reproduced the problem >myself and haven't seen enough information to hazard a guess at just >what is happening. > >-- >Justin I am not sure if this may help or even related. Our server that exhibits problem has 3 adaptec controllers... a 7870 with 3 Ultra-W drives and 2x7890 with 13 Ultra2 drives. It is only pumping out around 30mbps = ~8Mbyte/s of network data... not very high for 3 SCSI buses. Normally, the server panic'ed about every 5-7 day. However, if I increased the PCI latency to 128, it would panic in less than a day (for 3 days in row before I put it back at 32). I kept it up with 3.2 stable (3.3 rc) within a week. Regards ------------ ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> rev 0x00 int a irq 12 on pci0.6.0 ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x02 int a irq 12 on pci0.9.0 fxp0: Ethernet address 00:a0:c9:78:c6:ef ahc1: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 10 on pci0.11.0 ahc1: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs ahc2: <Adaptec 2940 SCSI adapter> rev 0x03 int a irq 11 on pci0.12.0 ahc2: aic7870 Wide Channel A, SCSI Id=7, 16/255 SCBs To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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