Date: Wed, 2 Oct 2002 19:53:27 -0700 From: "Long, Scott" <Scott_Long@adaptec.com> To: "'attila!'" <attila@hun.org>, FreeBSD-CURRENT <current@freebsd.org> Cc: Eric Hodel <drbrain@segment7.net>, "Justin T.Gibbs" <gibbs@scsiguy.com> Subject: RE: aic7890/91 controller Message-ID: <AD1F046251DCD311BA6F00204840376704A21124@aimexc02.corp.adaptec.com>
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> > The aic 7890/91 is a dual 160 MB controller. No, the 7890/91 is 80MB/s max. > Adaptec's > documentation expliciely states that the bus speed is the > rate of the _slowest_ device on the channel. No it does not. > Did you try > placing the cd on the B channel or vice-versa? Tyan, in > their 2642 SMP manual, recommends that the faster (and > boot) drives be placed on the B bus. I can't imagine why it would say this. Can you provide a reference? > This worked fine for me through builds of 31 Dec; I > discovered with the 20 Feb slice that you could no > longer use both channels with CURRENT. the da drives > would boot from A or B, but when on B, the kernel would > not recognize the DVDRAM on A. The SCSI firmware > utility always reported all drives correctly on both > channels. This is the first I've heard of this problem. Can you provide more details? Did you file a PR back then? Did you post any mail to the freebsd-scsi list? > I tried every combination of hints; and finally went to > a separate controller (Tekram DC395U) for the slow > peripherals. Hints worked on assigning cd0 and cd1 until > 27 Sep build and now only block them moving the devices > to cd2 and cd3 in the order found. Hints were fixed on RELENG_4 on September 22. Can you provide more information? > > I'm going to add GEOM in a few minutes --if it stays > stable for a while, I'll go through the cable swapping > and hints routine again to try and control all devices > with the dual controller. I don't have any non-SCSI > devices. > > Sent: Wed, 2 Oct 2002 17:08:45 -0700 by Eric Hodel > > + ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> port > 0xb000-0xb0ff mem 0xdd000000-0xdd000fff irq 7 at device 6.0 on pci0 > + aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs > + ... > + Initializing GEOMetry subsystem > + IPsec: Initialized Security Association Processing. > + ad0: 1033MB <Maxtor 81080 A3> [2100/16/63] at ata0-master WDMA2 > + ad2: 2014MB <QUANTUM BIGFOOT_CY2160A> [4092/16/63] at > ata1-master WDMA2 > + Waiting 2 seconds for SCSI devices to settle > + cd0 at ahc0 bus 0 target 6 lun 0 > + cd0: <TEAC CD-ROM CD-532S 3.0A> Removable CD-ROM SCSI-2 device > + cd0: 20.000MB/s transfers (20.000MHz, offset 16) > + cd0: cd present [355664 x 2048 byte records] > + da0 at ahc0 bus 0 target 0 lun 0 > + da0: <QUANTUM VIKING II 4.5WLS 4110> Fixed Direct Access > SCSI-2 device > + da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), > Tagged Queueing Enabled > + da0: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C) > + da1 at ahc0 bus 0 target 1 lun 0 > + da1: <FUJITSU M2915S-512 0180> Fixed Direct Access SCSI-2 device > + da1: 10.000MB/s transfers (10.000MHz, offset 15), Tagged > Queueing Enabled > + da1: 2075MB (4250695 512 byte sectors: 255H 63S/T 264C) > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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