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: [EMAIL PROTECTED] *********************************************************************** * 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 * ***********************************************************************
