Date: Thu, 03 Oct 2002 02:34:04 +0000 (GMT) From: attila! <attila@hun.org> To: FreeBSD-CURRENT <current@freebsd.org> Cc: Eric Hodel <drbrain@segment7.net>, Justin T.Gibbs <gibbs@scsiguy.com> Subject: aic7890/91 controller Message-ID: <20021003023404.uesI9921@hun.org>
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Eric:
The aic 7890/91 is a dual 160 MB controller. Adaptec's
documentation expliciely states that the bus speed is the
rate of the _slowest_ device on the channel. 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.
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.
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.
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)
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