Re: To DirMC, or not to DirMC
2006-07-21 19:11:37
Orville Lantto wrote:
> I was looking over some recent TechNotes and ran into two
> contradictory items.
>
> TechNote 1154049 "TSM server storage--Handling of client directory
> objects" preaches the old religion of using a separate management
> class and disk pool for Windows and Novell directory objects to speed
> restore.
>
> TechNote 1240913 "DIRMC has little effect on restore performance"
> makes the case that DIRMC is obsolete and unnecessary.
>
> These two TechNotes are both dated within the last month.
>
> Anybody from IBM want to clear this up?
>
> Orville L. Lantto Glasshouse Technologies, Inc.
>
This was discussed at Oxford last year. I don't recall the outcome. I do
recall that because TSM allocates 256k chunks minimum for a transaction,
you do not really want to use this feature since TSM v5.3. Also, since
recent levels (5.3) the client is capable of creating directories with
some default permissions and then correct the permissions as the Dir
gets of tape, the usefulness of DirMC has been reduced.
--
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