Hi There,

I plan to change amanda backup schedule due to reduction of the size of the 
working group. Currently dumpcycle=6Days; runspercycle=3 (runs every other 
day), using 4 tapes (on disk). I just want to change dumpcycle to one month. 
Here is the list of changes I think I should do.

1. amanda.conf
dumpcycle  30 days
runspercycle 15
tapecycle 16   # (15+1)

### Do I need to change this? The backup disk has 200G, that's why the length 
was set to 48G (200/4). If I change it to 12G (200/16), it's not enough to 
hold a full dump. Since this is vertual tape, I can probably set to 30G and 
hope there will be no more than 6 full dump per cycle.
define tapetype HARD-DISK {
        comment "Backup to disk - not tape"
        length   48000 mbytes
}

2. chg-multi (tapechanger)
firstslot 1
lastslot  16

slot 1file:/xxx
...
slot 16 file: /xxx

3. Add tape directories T5-T16 on backup disk.

4. cron
xxx

My questions are:

1. Do I miss anything I should change?
2. When will this change take effect?
3. Will amanda do this transition seamlessly?

Thanks in advance.

Jingchun