hurf@tcgould.tn.cornell.edu (Hurf Sheldon) (09/26/88)
Reply-to: hurf@tcgould.tn.cornell.edu (Hurf Sheldon)
We presently have Ultrix2.0 & 2.3 uVaxen with rqdx3/rd53's and
sigma/maxtor disk systems being backed up remotely & directly
to a TK50. We are looking at alternatives to speed up both the
dump and restore process.
Has anyone experience with the TD Systems Viking QTO/Exabyte
8mm videotape subsystem? This 'tmscp compatible'
drive system has come to my attention and the VMS based performance
comparisons show it to be 6 time faster than a TK50 for VMS
backups. Under Ultrix I assume there would be a corresponding
gain but what about restores? New pricing from Trimarchi makes it
attractive vs the TK70 and tapes hold 2GB at $10 each as opposed
to .3GB at $45.00 each.
Thanks in advance,
hurf
--
Hurf Sheldon Network: hurf@ionvax.tn.cornell.edu
Lab of Plasma Studies Bitnet: hurf@CRNLION
369 Upson Hall, Cornell University, Ithaca, N.Y. 14853 ph:607 255 7267
I sold my Elan, got a job in science; Now, no one takes me seriously.kg@elan.UUCP (Ken Greer) (11/08/88)
Reply-to: kg@elan.UUCP (Ken Greer) >From article <60432@felix.UUCP>, by hurf@tcgould.tn.cornell.edu (Hurf Sheldon): > Reply-to: hurf@tcgould.tn.cornell.edu (Hurf Sheldon) > > Has anyone experience with the TD Systems Viking QTO/Exabyte > 8mm videotape subsystem? We have just installed an Exabyte EXB-8200 with a Viking QTO controller on our Microvax II running Ultrix 2.3. We purchased the set from Eakins Associates in Mt View California. The cost for the above in a rack mount cabinet was $5,400. Recommended tapes are Sony 8mm Video tapes. These cost about $8 each at any video/record store and hold 2.3 MB each. The results: 1. We installed it a week ago. Did one backup and the Exabyte failed the next day! The vendor (Eakins) swapped the drive and it now seems to work fine. The technician said there is an above average infant mortality rate on the Exabyte units. 2. We have performed a grand total of two backups so far. In single user mode, we backed up about 600 MB in roughly two hours (That's 5 MB/minute). I'm amazed at the speed! This is much faster than a TK-50. But, then again, watching ice freeze is faster than a TK-50. I am, so far, very impressed with this unit. We can now due EPOCH backups of the ENTIRE system EVERY night on a SINGLE tape! And automatically -- Just throw in a cartridge and go home! This is a hot item. I'll keep the net posted to any problems. -- Ken Greer Elan Computer Group, Inc. {ames,hplabs,uunet}!elan!kg 415-322-2450