Re: OnLine 7.2 3rd Party Backup / Restore Utilities

Jon C Vemo wrote: > At 10:34 AM 7/25/97 -0400, Art S. Kagel wrote: > >postmaster@colburn.com wrote: > >> > >> I have been using ontape to backup my database for about a year. I > only > >> have 1 (about 2GB with 300 tables) and I do a full backup every > night > >> onto DAT. The problems I have: > > > >If you upgrade to 7.21+ you get the new backup/restore utility onbar. > > >Onbar has several advantages over ontape & onarchive: > > > >1) Can to single dbspace restore or archive. > >2) Can restore 'up to the minute' if logs are available (ie user says > > > "Ooops I deleted all my rows at 11:15 can you restore them?") > >3) Uses the new POSIX archive API so that 3rd party hardware > interfaces > >can be used. Many backup vendors are subscribing to this interface > and > >providing the shared libraries needed, ex: Legato Networker. These > >ofter > >add multiple device handling and tape libraries so that archives do > not > >wait for tape changes. > > The latter is the real benefit to OnBar. Both single dbspace > backup/restore, > as well as point-in-time recovery, are available inthe 7.2x versions > of > OnArchive. > With OnArchive (when you get the thing working smoothly) you can use > multiple devices. We are using OnArchive and perform level0's to 6 ea. > 8mm > tape drives, in parallel. > > OnBar allows you to use one of many the many storage management > products > (like Legato, ADSM, Alexandria, etc.), that support OnBar through the > XBSA > standard. Most of these products support multiple devices, robotic > libs., etc. > > We are testing the Alex product with 4 drive DLT libs now. We > anticipate a > significant thoughput increase, as well as a significant decrease in > support > of out backup processes (OnArchive is a piece of .......) > > Jon > > --- > ------------------------------------------------------------------------ > > --- > Jon C. Vemo "Life is like a dogsled team, if you ain't the > > jvemo@cyberspace.com lead dog the scenery never changes." > ------------------------------------------------------------ > --------------- > --- How do you get a significant throughput increase by going from 'multiple' 4mms to a 'single' tape storage library?