On Thu, May 16, 2002 at 10:22:31AM -0700, Soo Hom wrote:
> Hello,
> 
> I want more level 0 dumps in the tapecycle.  Currently we get about 2
> level 0's every six weeks.
> 
> 
> dumpcycle 6 weeks
> tapecycle 30 tapes
> 
> tapedev "/dev/nrst0"
> tapetype SDT10000
> 
> infofile "/var/amanda/eceadm/curinfo"
> indexdir "/var/amanda/eceadm/index"
> logdir "/var/amanda/eceadm"
> 
> labelstr "VOL[1-6][1-5]*$"
> 
> If I change the number of tapes from 30 to 40 and the dumpcycle to 4 weeks
> will this result in more than 2 level 0's per tapecycle?
> 
> 
> dumpcycle 4 weeks
> tapecycle 40 tapes

Question 1.  What is the LONGEST interval between level 0's you want?

             Right now you are saying 6 weeks.  Getting more than 1 every
             6 weeks is not certain.  Only that you will get at least 1.

             Setting dumpcycle to 4 weeks only makes certain you get
             at least 1 every 4 weeks.

             Set it to 1 week and you will get at least 1 every week.
        
Question 2.  How frequently do you run amdump?  It appears to be 5 times a week.

             You should set runspercycle to the number of amdump runs per dump
             cycle.  If you set dumpcycle to 2 weeks and do 5 dumps per week,
             runspercycle should be 10.

The number of tapes does not affect the other parameters.  But it should be
greater than runspercycle.  Usually by a factor of 2 or 3 or 4 or... depending
on how many cycles you wish to keep in case of problems.

-- 
Jon H. LaBadie                  [EMAIL PROTECTED]
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)

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