Reclaim storage

The renewed discussion of performing a reclaim storage reminds me that we have 
never run one on our 520 that we have been on since Oct 2005. I have an 
upcoming weekend where we will need to bring the system down to add some memory 
and also install some third-party software that requires us to be in a 
restricted state. Since we are down for those occurrences it would be wise for 
me to take advantage of the time and also run the reclaim storage, since down 
time is at a premium these days.

 

When I bring this up to management as a proposal I know I will get two 
questions:

 

1.      How long will it take?
2.      What the heck is a reclaim storage?

 

I know what it took when we were on an 820 (2 ½ hours in Feb 2004), but now 
being on a 520 (2400cpw) with more dasd (808gig / 65% utilization) and memory 
(4gig), and new release (v5r3), I am not sure of an estimate. Has anyone done 
one with conditions close to these that might be able to share some time 
estimates? I am not having any problems or receiving any messages that I am 
aware of, but if I do not take advantage of this window to do one now it might 
come back to bite me. 

 

For the second question, how do you explain it to non-technical management 
people? What Windows function can I relate it to that they might understand? It 
is not a disk defrag, maybe a scan or cleanup?

 

Thanks.

Dave 

 


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