Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 31 Oct 1998 19:25:34 -0700 (MST)
From:      "Kenneth D. Merry" <ken@plutotech.com>
To:        vallo@matti.ee
Cc:        freebsd-scsi@FreeBSD.ORG
Subject:   Re: AIC-7895 and 20.0MB/s transfers
Message-ID:  <199811010225.TAA27464@panzer.plutotech.com>
In-Reply-To: <19981101050949.A291@matti.ee> from Vallo Kallaste at "Nov 1, 98 05:09:49 am"

next in thread | previous in thread | raw e-mail | index | archive | help
Vallo Kallaste wrote...
> I purchased new motherboard recently which have onboard AIC-7895P 
> chip. All is well but dmesg says that I have 20MB/s transfers only. 
> When working with old ncr controller I have 40MB/s transfers. Some 
> bits from dmesg:
> 

[ ... ]

> changing root device to da0s1a
> da0 at ahc0 bus 0 target 6 lun 0
> da0: <QUANTUM VIKING II 4.5WSE 5520> Fixed Direct Access SCSI2 device
> da0: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing 
> Enabled
> da0: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C)
> da1 at ahc1 bus 0 target 6 lun 0
> da1: <QUANTUM VIKING II 4.5WSE 5520> Fixed Direct Access SCSI2 device
> da1: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing 
> Enabled
> da1: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C)
> cd0 at ncr0 bus 0 target 0 lun 0
> cd0: <TOSHIBA CD-ROM XM-6201TA 1030> Removable CD-ROM SCSI2 device
> cd0: 10.0MB/s transfers (10.0MHz, offset 16)
> cd0: Attempt to query device size failed: NOT READY, Medium not 
> present
> 
> I feel that this issue was discussed lately somewhere but I'm not 
> sure. What I can do to get back faster transfers ?

Well, I'll ask the obvious question:  Is support for Ultra SCSI speeds
enabled in the Adaptec BIOS?  (ctrl-A when you boot the machine)


Ken
-- 
Kenneth Merry
ken@plutotech.com

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199811010225.TAA27464>