dunigan@ornl-msr.arpa (02/07/86)
Dump and tar to STC tri-density tape drive via SI 9700 controller on 4.2 unix (through ut.c driver) is losing a byte on some writes, some blocks are only 10239 rather than all being 10240. Seems to be a function of the start-stop nature of tar and dump, a simple tape-certify program writing from memory does not exhibit the problem. Happens at 1600 and 6250, and if you re-write the tape the short blocks occur at different places -- but re-reading always reports the same sequence (reading on another tape subsystem reports the short blocks) hints or suggestions? tom dunigan@ornl-msr.arpa
ron@BRL.ARPA (Ron Natalie) (02/07/86)
We use SI 9700 controllers with the 125ips STC drives on many systems at BRL and we have never seen this problem on either 4.2 or other UNIX systems. -Ron
leon@mmm.UUCP (Leon Schilmoeller) (02/10/86)
> > We use SI 9700 controllers with the 125ips STC drives on many systems > at BRL and we have never seen this problem on either 4.2 or other UNIX > systems. > > > -Ron We have the SI 9700 Tridensitey drive also, and have not seen this problem either. We are running BSD 4.2 on a VAX 11/780. Leon Schilmoeller 3M - St. Paul Mn ihnp4!leon