Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 4 Oct 1998 20:15:54 +0200
From:      "Johan Granlund" <johan@granlund.nu>
To:        freebsd-current@FreeBSD.ORG
Subject:   Exabyte 8200 and CAM, Take 2
Message-ID:  <199810041820.UAA02473@phoenix.granlund.nu>

next in thread | raw e-mail | index | archive | help
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.

/Johan

Oct  3 13:38:44 phoenix /kernel: (noperiph:ahc0
Oct  3 13:38:44 phoenix /kernel: :0:X:X): SCSI bus reset delivered. 0 SCBs aborted.
Oct  3 13:38:44 phoenix /kernel: ahc0: Selection Timeout on A:2. 1 SCBs aborted
Oct  3 13:38:44 phoenix /kernel: ahc0: Selection Timeout on A:3. 1 SCBs aborted
Oct  3 13:38:44 phoenix /kernel: ahc0: Selection Timeout on A:4. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:5. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:9. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:10. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:11. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:12. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:13. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:14. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:15. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: target 1 synchronous at 10.0MHz, offset = 0xf
Oct  3 13:38:45 phoenix /kernel: ahc0: target 8 using 16bit transfers
Oct  3 13:38:45 phoenix /kernel: ahc0: target 8 synchronous at 20.0MHz, offset = 0x8
Oct  3 13:38:45 phoenix /kernel: ahc0: target 0 synchronous at 10.0MHz, offset = 0xf

Unplugging powercord to tapedrive here

Oct  3 13:38:45 phoenix /kernel: Unexpected busfree.  LASTPHASE == 0x40
Oct  3 13:38:45 phoenix /kernel: SEQADDR == 0x110
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:6. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: ahc0: Selection Timeout on A:6. 1 SCBs aborted
Oct  3 13:38:45 phoenix /kernel: sa0 at ahc0 bus 0 target 6 lun 0
Oct  3 13:38:45 phoenix /kernel: sa0: <EXABYTE EXB-8200 2644> Removable 
Sequential Access SCSI1 device 
Oct  3 13:38:45 phoenix /kernel: sa
Oct  3 13:38:45 phoenix /kernel: 0: 3.300MB/s transfers
Oct  3 13:38:45 phoenix /kernel: pass0 at ahc0 bus 0 target 0 lun 0
Oct  3 13:38:45 phoenix /kernel: pass0: <SEAGATE ST11900N 8650> Fixed Direct 
Access SCSI2 device 
Oct  3 13:38:45 phoenix /kernel: pass0: Serial Number 00765238
Oct  3 13:38:45 phoenix /kernel: pass0: 10.0MB/s transfers (10.0MHz, offset 15), 
Tagged Queueing Enabled
Oct  3 13:38:45 phoenix /kernel: pass1 at ahc0 bus 0 target 1 lun 0
Oct  3 13:38:45 phoenix /kernel: pass1: <HP C3725S 5153> Fixed Direct Access 
SCSI2 device 
Oct  3 13:38:45 phoenix /kernel: pass1: Serial Number MY6002NMHQ
Oct  3 13:38:45 phoenix /kernel: pass1: 10.0MB/s transfers (10.0MHz, offset 15)
Oct  3 13:38:45 phoenix /kernel: pass2 at ahc0 bus 0 target 6 lun 0
Oct  3 13:38:45 phoenix /kernel: pass2: <EXABYTE EXB-8200 2644> Removable 
Sequential Access SCSI1 device 
Oct  3 13:38:45 phoenix /kernel: pass2: 3.300MB/s transfers
Oct  3 13:38:45 phoenix /kernel: pass3 at ahc0 bus 0 target 8 lun 0
Oct  3 13:38:45 phoenix /kernel: pass3: <QUANTUM XP39100W LXY4> Fixed Direct 
Access SCSI2 device 
Oct  3 13:38:45 phoenix /kernel: pass3: Serial Number PCB=2011300101  ; 
HDA=189709631865
Oct  3 13:38:45 phoenix /kernel: pass3: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), 
Tagged Queueing Enabled
Oct  3 13:38:45 phoenix /kernel: da1 at ahc0 bus 0 target 1 lun 0
Oct  3 13:38:45 phoenix /kernel: da1: <HP C3725S 5153> Fixed Direct Access SCSI2 
device 
Oct  3 13:38:45 phoenix /kernel: da1: Serial Number MY6002NMHQ
Oct  3 13:38:45 phoenix /kernel: da1: 10.0MB/s transfers (10.0MHz, offset 15)
Oct  3 13:38:45 phoenix /kernel: da1: 2047MB (4194058 512 byte sectors: 64H 32S/T 
2047C)
Oct  3 13:38:45 phoenix /kernel: da2 at ahc0 bus 0 target 8 lun 0
Oct  3 13:38:45 phoenix /kernel: da2:
Oct  3 13:38:45 phoenix /kernel: <QUANTUM XP39100W LXY4> Fixed Direct Access 
SCSI2 device 
Oct  3 13:38:45 phoenix /kernel: da2: Serial Number PCB=2011300101  ; 
HDA=189709631865
Oct  3 13:38:45 phoenix /kernel: da2: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), 
Tagged Queueing Enabled
Oct  3 13:38:45 phoenix /kernel: da2: 8682MB (17781520 512 byte sectors: 64H 32S/T 
8682C)
Oct  3 13:38:45 phoenix /kernel: da0 at ahc0 bus 0 target 0 lun 0
Oct  3 13:38:45 phoenix /kernel: da0: <SEAGATE ST11900N 8650> Fixed Direct 
Access SCSI2 device 
Oct  3 13:38:45 phoenix /kernel: da0: Serial Number 00765238
Oct  3 13:38:45 phoenix /kernel: da0: 10.0MB/s transfers (10.0MHz, offset 15), Tagged 
Queueing Enabled
Oct  3 13:38:46 phoenix /kernel: da0: 1621MB (3320691 512 byte sectors: 64H 32S/T 
1621C)

___________________________________________________________

Internet: johan@granlund.nu

I don't even speak for myself

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



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199810041820.UAA02473>