>From: Paul Bijnens <paul.bijnens AT xplanation DOT com> >To: kshriyan AT redhat DOT com >CC: amanda-users AT amanda DOT org >Subject: Re: Amanda Backup >Date: Wed, 02 Mar 2005 10:58:08 +0100 > >Kaushal Shriyan wrote: >> >>Can I prirotise the backup in Amanda, I mean first HOST A, Then >>HOST B >>and next on words or can I specify in the disklist file > >Not completely, but you have some control. > >First there is the "priority" directive in the dumptype definition. >Here "priority" is not time related (common misconception), but, >when amanda has no tape to write, it falls back to degraded mode, >doing incrementals to holdingdisk.  If there is not enough space, >amanda chooses which to drop according to the priority >("priority low" is dropped first). > >If you want time-based priority, you can add the "starttime" >directive >to some dumptypes. The starttime indicates that backups will not >start >until after this time of the day.  YOu can defined two dumptypes, >one without starttime (i.e. backups will start as soon as amdump >starts), and one with a delayed starttime (then hopefully all the >others >have already started). If you run amdump at e.g. 00:05 past >midnight, >you can define these two dumptypes: > >define dumptype normal { >     global >} >define dumptype delayed { >     normal >     starttime 200 # start at 2:00 am >} > >You'll have to find out experimentally at what time it is safe to >start with the lower priority DLE's.  You'll have to understand >the relations between number of "inparallel" dumpers, and several >constraints that inhibit amanda to start another dump, like spindle, >"maxdumps" in the dumptype, bandwith and holdingdisk space. >"amplot" is your friend here, together with an careful examination >of the dump.X file. > >That said, many people (like me) would like to start the longest >dumps first, not because they are more important, but that they are >finished by the time people start to work again, and so that they >can >be put first on tape (avoiding restarting such a large dump because >it >bumped into end of tape -- longest are probably among the largest >too). >For that simple case, no need to add starttime, just change the >default >dumporder: > >inparallel 8         # or anything you  like >dumporder "TTTTTTTT"    # as many T's as you have "inparallel" >taperalgo largestfit # why isn't this the default? > > >-- >Paul Bijnens, Xplanation                            Tel  +32 16 >397.511 >Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM    Fax  +32 16 >397.512 >http://www.xplanation.com/          email:   >Paul.Bijnens AT xplanation DOT com >*********************************************************************** >* I think I've got the hang of it now:  exit, ^D, ^C, ^\, ^Z, ^Q, >F6, * >* quit,  ZZ, :q, :q!,  M-Z, ^X^C,  logoff, logout, close, bye,   >/bye, * >* stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt,  abort,   >hangup, * >* PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e,  kill -1 $$,   >shutdown, * >* kill -9 1,  Alt-F4,  Ctrl-Alt-Del,  AltGr-NumLock,  Stop-A,  ...   >  * >* ...  "Are you sure?"  ...   YES   ...   Phew ...   I'm out         >  * >*********************************************************************** > >