Date: Sun, 04 Oct 1998 20:39:28 +0100 (BST) From: Duncan Barclay <dmlb@ragnet.demon.co.uk> To: Johan Granlund <johan@granlund.nu> Cc: freebsd-current@FreeBSD.ORG Subject: RE: Exabyte 8200 and CAM, Take 2 Message-ID: <XFMail.981004203928.dmlb@computer.my.domain> In-Reply-To: <199810041820.UAA02473@phoenix.granlund.nu>
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On 04-Oct-98 Johan Granlund wrote:
> HI
>
> I have a Exabyte 8200 tape streamer. It worked fine in a preCAM system exept
> for
> timeout errors when using a rewind devicenode.
>
> After CAM i get a lookups at probing of the SCSI-bus. I don't get any
> timeoutmessages
> or anything. If the powercord to the tapedrive is unplugged the boot
> continues and the
> tapedrive is in the report. This is even when the tapedrive stays unplugged.
>
> I have tried two version of firmware on the tapedrive 2618 and 2644 for no
> effekt.
>
> If multiple LUN support is enabled (normally off on my system) on the
> controller
> (Adaptec 2940UW), the tape driver is reported on all LUNs in the BIOS scan. I
> thought
> that maybe multiple LUN probing locked the drive and tried the following
> patch to
> sys/cam/cam_xpt.c for no effect.
> {
> {
> T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE, "EXB-8200*", "*"
> },
> CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
> },
>
> Follows part of dmesg with a 15 min wait between lockup and unplugging of
> powercord
> to tapedrive and a SCSI_DELAY of 60000.
Strange, my Exabyte 8200 probes fine with no lockups, I have a NCR810 card.
Current as of about 06:30GMT 2/10/98. Exabyte has same firmware as yours.
FreeBSD 3.0-BETA #0: Sat Oct 3 03:33:50 GMT 1998
dmlb@computer.my.domain:/usr/src/sys/compile/COMPUTER
...
ncr0:<ncr 53c810 fast10 scsi> rev 0x01 int a irq 9 on pci0.8.0
...
sa0 at ncr0 bus 0 target 5 lun 0
sa0: <EXABYTE EXB-8200 2618> Removable Sequential Access SCSI1 device
sa0: 3.300MB/s transfers
Duncan
---
________________________________________________________________________
Duncan Barclay | God smiles upon the little children,
dmlb@ragnet.demon.co.uk | the alcoholics, and the permanently stoned.
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