I notice that there is earlier discussion in the archives that Ultra160 was broken, but Doug's reply was that it had been fixed in 5.1.29 version of the driver. I am currently running version 5.1.31 of the driver, but have played with all versions from 5.1.22 through 5.1.31 in the last few days, mingled with various kernels 2.2.13 on through 2.2.16-4. I have a UltraSCSI/160 Adaptec AIC-7899 controller and 3 Seagate "Cheetah" drives. The best write performance I have seen out of this using Bonnie is just less than 10 Mb/sec (block writes on a 1 Gb file), and most of the time it is a lot worse. Older kernels tend to do better. Does anyone have a fix that can get this performance up to the 20 Mb/sec range that it should be in? Could we have a termination problem or something? Thanks for any help you can provide. ------------------------------------------------------------------ Steven C. Timm (630) 840-8525 [EMAIL PROTECTED] http://home.fnal.gov/~timm/ Fermilab Computing Division/Operating Systems Support Central Systems Support Group--Computing Farms Operations - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED]
