[2173] in linux-scsi channel archive
Problems switching between DDS tapes of different length
daemon@ATHENA.MIT.EDU (Eckard Koch)
Thu Jul 17 21:48:54 1997
To: linux-scsi@vger.rutgers.edu, linux-tape@vger.rutgers.edu
From: Eckard Koch <czkec@ocag.ch>
Date: 17 Jul 1997 13:55:23 +0200
Hi everybody,
I am stuck with a problem related to a HP Surestore 12000e
tape drive and DDS tapes of 90m and 120m length.
In principle the drive should support DDS1 and DDS2 tape and
this has been working for some time. But recently I am getting
problems to access data on an 90m if I have been using 120m tapes in
between. After power cycling the tape drive I am again able to read
data from 90m tapes until the next 120m tape has been loaded.
My configuration looks like this
Kernel: Linux lx_kec 2.0.30 #1 Wed Jun 4 18:30:04 MET DST 1997 i586
Adaptec AIC7xxx driver version: 4.008/3.2
Compile Options:
AIC7XXX_RESET_DELAY : 15
AIC7XXX_CMDS_PER_LUN : 16
AIC7XXX_TAGGED_QUEUEING: Enabled
AIC7XXX_PAGE_ENABLE : Enabled
AIC7XXX_PROC_STATS : Disabled
Adapter Configuration:
SCSI Adapter: Adaptec AHA-2940A Ultra SCSI host adapter
(AIC-786x chipset)
Host Bus: Single
Base IO: 0xe000
Base IO Memory: 0xf9800000
IRQ: 10
SCBs: Used 6, HW 3, Page 8
Interrupts: 164112
Serial EEPROM: True
Extended Translation: Enabled
SCSI Bus Reset: Enabled
Ultra SCSI: Disabled
Target Disconnect: Enabled
Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: IBM Model: DPES-31080 Rev: S31Q
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: HP Model: C1553A Rev: 9503
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 01
Vendor: HP Model: C1553A Rev: 9503
Type: Medium Changer ANSI SCSI revision: 02
I suppose my problem has something to do with my software
(driver) configuration. I am using the June release of the AIC7xxx
driver since I was experiencing tape lockup problems with older
versions of this driver.
Can any kind soul explain what is happening here.
Cheers,
--
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Eckard Koch email : czkec@ocag.ch
Contraves Space; W-EE3 ekoch@access.ch
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