> recent 2.4 kernels have incredible bad performance for me when handling MO
> drives. Going back 2.2 shows better performance.

> Copying a 6.5 MByte file with cp returns nearly immediately on the
> commandline, but umount nearly takes forever. Maximum rate detected by
> xosview during umount was about 30 kByte.

I have this one:

  Vendor: FUJITSU   Model: MCD3130SS         Rev: 0020

and it works very well with 2.4. 2.2 kernel perform really badly because of
the famous merging problem.

> Are all my MO disks rotten? Are the MO drives broken? Are my SCSI adapters
> broken? Or is there a bug in the SCSI layer?

No probs here. I have an Adaptec SCSI card.

Bye.


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