det@hawkmoon.MN.ORG (Derek E. Terveer) (01/08/91)
I thought the net would be interested in my experiences in installing the updated driver just sent out by mike@cimcor.mn.org in articles: <1991Jan2.010542.17298@cimcor.mn.org> <1991Jan2.010638.17353@cimcor.mn.org> <1991Jan2.010734.17412@cimcor.mn.org> in my esix 5.3.2-d system. I am running a Datacomp 386/25MHz with a wren iv hanging off a scsi st-01 and a miniscribe 6085 off a (yuch!) wd1003 mfm card. (I boot off of the mfm drive) I was using the previous release of this driver and obtaining approximately 50k/sec transfer rate from the block device (raw device was not supported). I could not use the ffs (on the scsi driver), since it was also not supported by the old st-01 driver. The beta version supports raw devices (for the most part, anyway) and the ffs, so I backed up my wren iv, created a ffs on the drive and copied back the data. The problems I encountered were: 1) 1024 byte sectors are not supported by the st-01 driver. So, changing from 1024 to 512 byte sectors allowed me to create a ffs but i lost 324M-313M = 11M of disk space. Oh well, at least i can use the ffs now. 2) the default fs created by the newfs command (in /etc/ffs) is a sys v directory format, so using the information gleaned from previous articles, i tried running mkfs manually without the -S option and all the other parameters intact (as shown by "newfs -v") in an attempt to create a bsd file system (with 255 char file names instead of 14). However, when the fs was built and i created a long file name and then tried to reference it with a wild char, i.e.: touch abcdefghijklmnopqrstuvwxyz rm abc* rm: abc* non-existent rm abcdefghijklmnopqrstuvwxyz if the full name is specified, rm finds it, otherwise wild characters don't seem to work (well, at least the "*" doesn't and that was enough for me! -- i didn't test any other wild chars) Sigh. Back to the system v file system. If one runs "newfs -N /dev/.." on a fs just created as a bsd file system, newfs (incorrectly?) reports that it is a system v fs. So, i just used the default newfs command and built a sysv type fs on my wren iv and everything seems to be working just fine. I am now getting between approximately 100k/sec and 300k/sec rates (depending on load) with the command: time dd if=/dev/dsk/5s0 of=/dev/null count=200 bs=8k -- Derek "Tigger" Terveer det@hawkmoon.MN.ORG - MNFHA, NCS - UMN Women's Lax, MWD I am the way and the truth and the light, I know all the answers; don't need your advice. -- "I am the way and the truth and the light" -- The Legendary Pink Dots