Thanks for the reply. I will try to find out the right value for the "tapecycle" parameter for my case.
I have one more question related to amanda configuration but not related to my earlier query. The documentation says that GNU tar version 1.15 is needed on amanda clients for amanda to work. But my client machine(which is also the backup server) has GNU tar version 1.13.25. Will this cause a problem to my backup configuration? My OS is RHEL3 and there are no RPMs available for tar-1.15 for this OS. Upgrade of the tar version will not be very easy. Thanks Yogesh --- Paul Bijnens <[EMAIL PROTECTED]> wrote: > On 2007-02-19 11:22, Yogesh Hasabnis wrote: > > Hi, > > > > After all the testing, I have decided upon a basic > > Amanda configuration for my requirements. I have > 20 > > tapes with me that I plan to rotate every 4 weeks. > I > > plan to configure Amanda to take full backup once > a > > week. The backup will executed only on the 5 week > > days. So, as per my understanding my amanda.conf > > should have > > the following parameters > > > > dumpcycle 1 week > > runspercycle 5 > > tapecycle 20 tapes > > runtapes 1 > > That is correct. > > > > > > I would be grateful if anybody could confirm > whether > > the above parameters are good enough. I am > > particularly confused with the "tapecycle" > parameter. > > The amanda.conf man page states that "The number > of > > tapes in rotation must be larger than the number > of > > tapes required for a complete dump cycle. It is > > considered good administrative practice to set the > > tapecycle parameter slightly lower than > the > > actual number of tapes in rotation." > > > This practice comes from the fact that when you need > to > skip the next tape (because you forgot it at home, > or > because it is broken, etc.) Amanda will insist that > you insert a fresh tape (and label it), instead of > the next one. > Amanda will not overwrite only the oldest from the > "tapecycle" > number of tapes. > > In your case you do have 3 times a full dump > somewhere > in the older tapes, so you expect Amanda to > overwrite the > oldest-1 as well. > > So it is convenient to specify amanda some lower > number > (but still larger than dumpcycle!!) > Unless you insist on having 3 full dumps in your > history > of course... > > > > > So what is a proper value for the tapecycle > parameter > > in my case? > > You could set "tapecycle 15", and still label and > use 20 > tapes. Then Amanda accepts any of the last 5 tapes. > Makes it easier to order new tapes, when one got > broken > etc. > > -- > Paul Bijnens, xplanation Technology Services > 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, * > * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, > AltGr-NumLock, Stop-A, ... * > * ... "Are you sure?" ... YES ... Phew ... > I'm out * > *********************************************************************** > > ____________________________________________________________________________________ Sucker-punch spam with award-winning protection. Try the free Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/features_spam.html
