[4235] in linux-scsi channel archive
problem with MO drive (NCR driver problem?)
daemon@ATHENA.MIT.EDU (Ronald Wahl)
Sat Jun 27 06:35:39 1998
Date: Sat, 27 Jun 1998 12:34:03 +0200 (CEST)
From: Ronald Wahl <rwahl@gmx.net>
To: linux-scsi <linux-scsi@vger.rutgers.edu>
Hi,
I own the MO drive M2513A6 from Fujitsu. If I read/write a large amount
of data to/from the drive the system is sometimes totally busy (this means
it is in a nearly frozen state - but data will moved to/from the drive)
an the load will go up to 2 or 3. After some seconds the system is usable
again (but the load is constantly in the range of 1..3). This is really
annoying. Can someone reproduce this? Will there be a fix?
Some system info:
Kernel: 2.0.34 with 2048Byte/Sector-Patch from
http://home.pages.de/~mbuck/linux/patches.html
CPU: K6-200 (Stepping 2)
RAM: 98MB / 512 KB Cache
SCSI-Controller: NCR53c875 (with NCR53c825 the same problem occurs)
Driver: BSD driver (at the moment v3.0d, older ones have the same prob)
SCSI-Devices:
rwa@goliath:~$ cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DPES-31080 Rev: S31Q
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: FUJITSU Model: M2513A Rev: 1200
Type: Optical Device ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: TOSHIBA Model: CD-ROM XM-3601TA Rev: 0725
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
tia,
ron
--
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