jec@iuvax.cs.indiana.edu (11/11/87)
Is there a package that emulates "dump" on the Apollos. The RBAK/WBAK
command set is totally inadequate for doing backups of about 3 Gigabytes.
Also a warning: it seems that WBAK has some bad code in it. If you
do:
$ wbak -dev m0 -f 1 -fid backup -vid tape1 //junk
it will write the first tape, but after that it will as for another
tape and you should type either "unit #", "vid xxxx", or "go".
If you type: "vid tape2" for the next tape, it will spin the tape
for a second or two and then complain about some sort of tape error and
stop your WBAK. When this happens to the four tape or a 500MB backup, you
can imagine it is kind of a pain. Also, it seems that anything other than
"go" or carriage return will cause this error too.
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III (Home of the Indiana Hoosiers-- 1987 NCAA Basketball Champions)giebelhaus@hi-csc.UUCP (Timothy R. Giebelhaus) (11/18/87)
In article <5400005@iuvax>, jec@iuvax.cs.indiana.edu writes: > > Is there a package that emulates "dump" on the Apollos. The RBAK/WBAK > command set is totally inadequate for doing backups of about 3 Gigabytes. Why? I agree, there should be a dump and a rdump for the Apollos, but why is wbak inadequate. I have over 4 Gigabytes and it works fine. Most systems I have seen other than unix have only incremental and full backups. Some hints that might help is to not back up your entire system every time you do a full backup. Just backup your user directories and a few select system directories. If you really like, you can do an incremental on everything else, but I find it unnecessarry. Another hint is to look into buying a Megatape tape drive. You can put about half a gig on a tape (formatted). > Also a warning: it seems that WBAK has some bad code in it. If you > do: > > $ wbak -dev m0 -f 1 -fid backup -vid tape1 //junk > > it will write the first tape, but after that it will as for another > tape and you should type either "unit #", "vid xxxx", or "go". > > If you type: "vid tape2" for the next tape, it will spin the tape > for a second or two and then complain about some sort of tape error and > stop your WBAK. When this happens to the four tape or a 500MB backup, you > can imagine it is kind of a pain. Also, it seems that anything other than > "go" or carriage return will cause this error too. Does this happen when you do not specify a -fid? I do not use the -fid switch, but I do use the "vid xxxx" all the time. It works fine. -- --------------------------------- UUCP: {uunet, ihnp4!umn-cs}!hi-csc!giebelhaus ARPA: hi-csc!giebelhaus@umn-cs.arpa Nobody I know admits to sharing my opinions. I don't even have a pet.
giebelhaus@hi-csc.UUCP (Timothy R. Giebelhaus) (11/18/87)
Actually, I don't have plans to stop using wbak at any time. I find it
much better than dump. All the dump stuff with the inodes is for the
birds.
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Nobody I know admits to sharing my opinions. I don't even have a pet.mkhaw@teknowledge-vaxc.ARPA (Mike Khaw) (11/20/87)
Subject: Re: Apollo WBAK woes Newsgroups: comp.sys.apollo References: <388a0c47.bab@hi-csc.UUCP> > Why? I agree, there should be a dump and a rdump for the Apollos, but > why is wbak inadequate. I have over 4 Gigabytes and it works fine. I'd like wbak better if you could make it backup to a remote tape drive over tcp/ip. We have 9-track drives on non-Apollo Unix boxes that we'd prefer to backup to instead of the streamer cartridges on the Apollos. With dump/restore (actually rdump/rrestore) we can backup any of our Unix boxes to any other Unix box that has a 9-track drive. No such luck with separate Domain rings connected only via ethernet gateway servers: the operators have to run around to each ring to get to a drive on that ring. Yeccchhh! Mike Khaw -- internet: mkhaw@teknowledge-vaxc.arpa usenet: {uunet|sun|ucbvax|decwrl|uw-beaver}!mkhaw%teknowledge-vaxc.arpa USnail: Teknowledge Inc, 1850 Embarcadero Rd, POB 10119, Palo Alto, CA 94303
jec@iuvax.UUCP (11/21/87)
My basic complaint is that wbak only allows two "levels" of backups--
FULL and INCR. Backup history gets updated as the backups are in progress
which is bad news if you find out that you have a bad tape which happens on
rare occasion. I guess maybe I've been spoiled by dump/restore.
III Usenet: iuvax!jec
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III (Home of the Indiana Hoosiers-- 1987 NCAA Basketball Champions)