I'm not sure there would be any advantage to setting on colocation when you 
have 300 cartridges and 1400 clients, since the number of cartridges could not 
satisfy the requirements. TSM will place the files from the nodes on all the 
tapes.

If there were an advantage to having some of your nodes colocated you could 
create a separate domain/management class/target storage pool and set the 
maxscratch high enough to satisfy the number of nodes assigned to that domain.



>>> paulbaines AT GMX DOT DE 01/26/01 05:58AM >>>
Hello,

We are running a 3494 library serving, among others, some 1400 NT servers.
These servers occupy on average 2 Gb in a non-collocated storage pool. We
want/need to switch on collocation at a node level for these clients, but I don 
t
want to let them collocate on 1400 30-50Gb 3590s. How do people manage the
use of their collocated storage pools? Do you set maxscratch=0 and just define
volumes to the storage pool? What if I ve got 1400 clients and 300 tapes?
Does collocation work properly if you limit the number of tapes?
If I have 2700Gb and 2Gb per client then :

5 clients / tape        10 Gb / tape    = 270 tapes
6 clients / tape        12 Gb / tape    = 225 tapes
7 clients / tape        14 Gb / tape    = 192 tapes
8 clients / tape        16 Gb/ tape     = 168 tapes
9 clients / tape        18 Gb / tape    = 150 tapes
10 clients / tape       20 Gb / tape    = 135 tapes

OK, these are idealised averages, but how are you doing it? How full or how
many clients do you have on collocated storage pool tapes?

Ta in advance for any comments,
Paul.

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