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X-ASG-Orig-Subj: AW: [ADSM-L] Question about group collocation
Subject: AW: [ADSM-L] Question about group collocation
Date: Tue, 25 Nov 2008 12:02:51 +0100
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        Rule breakdown below
         pts rule name              description
        ---- ---------------------- 
--------------------------------------------------

Nodes who are not in a group are collocated by node.

---------
If you specify COLLOCATE=3DGROUP but do not define any collocation
groups or if you specify COLLOCATE=3DGROUP but do not add nodes to a
collocation group, data is collocated by node. Be sure to consider
tape usage when organizing client nodes into collocation groups.
For example, if a tape-based storage pool consists of data from
grouped and ungrouped nodes and you specify COLLOCATE=3DGROUP, the
server does the following:
   + Collocates by group the data for grouped nodes only. Whenever
     possible, the server collocates data belonging to a group of
     nodes on a single tape or on as few tapes as possible. Data
     for a single node can also be spread across several tapes
     associated with a group.
   + Collocates by node the data for ungrouped nodes. Whenever
     possible, the server stores the data for a single node on a
     single tape. All available tapes that already have data for
     the node are used before available space on any other tape is
     used.

---------=20

-----Urspr=FCngliche Nachricht-----
Von: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] Im Auftrag =
von
Minns, Farren - Chichester
Gesendet: Dienstag, 25. November 2008 11:57
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: [ADSM-L] Question about group collocation

Hi all

I currently have a tapepool collocated by node.

I have created my first collocation group and added three client nodes =
to
it.

So, if I now update the tapepool to collocate by 'group', am I right in
thinking it will still collocate all nodes NOT in the collocation group =
by
node?

Thanks

Farren Minns

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