In that case you must be using collocation (albeit  by accident).

You may want to look at group collocation as it sounds like your tapes are 
probably underutilised.  Unless that is you have manly fewer, bigger 
clients.

Steven Langdale
Global Information Services
EAME SAN/Storage Planning and Implementation
( Phone : +44 (0)1733 584175
( Mob: +44 (0)7876 216782
ü Conference: +44 (0)208 609 7400 Code: 331817
+ Email: steven.langdale AT cat DOT com

 



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[ADSM-L] collocation increases tape mounts while backup




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We are using an IBM3584 and don't use any kind of collocation.  We have 
found the migration process from diskpool to tape collocates data by node 
and therefore already does a decent job of grouping node data together.

The only time you may see better performance with collocation is with a 
server that has alot of little files that change often and those nodes 
should probably be stored on VTL or DISK rather than tape.

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