kobetitsch@picker.com (harry kobetitsch) (03/07/91)
I have a problem with Wangtek 5150 tape drive backups running on Interactive UNIX V2.2 . The problem is that under Interactive UNIX I will use the following command: $ find / -print | cpio -ovcdumC12400 >/dev/tape The tape drive will back up the complete file system but it will take two days to do it because it will not stream. I have dealt with Interactive and Wangtek and they both are unable to solve the problem. I have used the PC-36 controller as well as the PC-02 controller, both with the same results. I am using a DMI 386 w/8MB Ram, Paradise VGA, Adaptec SCSI w/ Priam 320MB drive, Coprocessor, Western Digital Ethernet Card. Can anybody out there provide input to this problem. I would appreciate any input. FAX: (216)473-7032 Voice: (216)473-2624 E-mail: kobetitsch@picker.com UUCP: ...!uunet!picker!kobetitsch
scotte@applix.com (Scott Evernden) (03/08/91)
In article <199@picker.Picker.COM> kobetitsch@picker.com (harry kobetitsch) writes: > >The tape drive will back up the complete file system but it will >take two days to do it because it will not stream. > >I have dealt with Interactive and Wangtek and they both are unable >to solve the problem. I have used the PC-36 controller as well as >the PC-02 controller, both with the same results. I had a problem with a Wangtek 5150ES SCSI not streaming. It turned out that there's a jumper that selects "power-on buffered mode" which was in the wrong position. In trying to track down this problem and get jumper diagrams, I discovered that Wangtek has at least 3 revs of the (SCSI) circuit board released. In my case (this may not help you all, since you're using a PC-36), HDR3 PIN 7 needs to be set in the A-B position. This is for board assy #30600. For board assys #33671 and #30559, its HDR3, PIN 1. I hope this is of some value to you and others... -scott
grant@bluemoon.uucp (Grant DeLorean) (03/09/91)
kobetitsch@picker.com (harry kobetitsch) writes: >I have a problem with Wangtek 5150 tape drive backups >running on Interactive UNIX V2.2 . The problem is that under >Interactive UNIX I will use the following command: > $ find / -print | cpio -ovcdumC12400 >/dev/tape >The tape drive will back up the complete file system but it will >take two days to do it because it will not stream. I use a Wangtek 5150ES off my 1542B and it runs along quite happily. I use the following to back up: find . -print | cpio -ocvBO /dev/tape and it works great and streams right along (and using . instead of / allows one to pick and choose file systems or even partial file systems to back up). I get outstanding rates on the backups, too. -- Grant DeLorean (grant@bluemoon) {n8emr|nstar}!bluemoon!grant
larry@nstar.rn.com (Larry Snyder) (03/11/91)
grant@bluemoon.uucp (Grant DeLorean) writes: >and it works great and streams right along (and using . instead of / >allows one to pick and choose file systems or even partial file >systems to back up). I get outstanding rates on the backups, too. Grant - please define outstanding - I get 6 megabytes per minute - -- Larry Snyder, NSTAR Public Access Unix 219-289-0287 (HST/PEP/V.32/v.42bis) regional UUCP mapping coordinator {larry@nstar.rn.com, ..!uunet!nstar.rn.com!larry}
grant@bluemoon.uucp (Grant DeLorean) (03/13/91)
larry@nstar.rn.com (Larry Snyder) writes: >>systems to back up). I get outstanding rates on the backups, too. >Grant - please define outstanding - I get 6 megabytes per minute - I see a little over (6-6.5) megs per minute, which I consider to be pretty good on this class of machine (ISA 25 Mhz 486, 1542B handling the WREN 6 and 7 drives and the Wangtek 5150ES). That is much better than the @1 meg per minute I saw when I had an Archive on a separate controller (ISA is limiting, don'cha know...). -- Grant DeLorean (grant@bluemoon) {n8emr|nstar}!bluemoon!grant "You need only reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating
davidsen@sixhub.UUCP (Wm E. Davidsen Jr) (03/18/91)
In article <1991Mar12.205232.3927@bluemoon.uucp> grant@bluemoon.uucp (Grant DeLorean) writes: | I see a little over (6-6.5) megs per minute, which I consider to be | pretty good on this class of machine (ISA 25 Mhz 486, 1542B handling | the WREN 6 and 7 drives and the Wangtek 5150ES). That is much better | than the @1 meg per minute I saw when I had an Archive on a separate | controller (ISA is limiting, don'cha know...). I see about 5MB/min on Archive or Wangtek with a typically fragmented f/s, using Xenix or ODT on a 486 at 16 or 25 MHz. I get over 6 if I have an unfragmented f/s. Both systems are ISA, so I don't see any bottleneck there. -- bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen) sysop *IX BBS and Public Access UNIX moderator of comp.binaries.ibm.pc and 80386 mailing list "Stupidity, like virtue, is its own reward" -me