No. DIRMC is used for directories in OS's that have ACL (Access Control
Lists) assigned. Like NT permissions. The WIN32 client on NT will use DIRMC
as well as the Netware clients. If the OS doesn't have ACL's associated with
the directories, then the information is kept in the TSM database only.
Win9x doesn't use the DIRMC.
Bill Boyer
DSS, Inc.
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
arhoads
Sent: Wednesday, November 22, 2000 11:10 AM
To: [EMAIL PROTECTED]
Subject: Re: DIRMC - disadvantages only?
And this goes along with my understanding which is that DIRMC was
invented solely for the purpose of segregating Novell backups since the
programmer on that client 'for some reason' didn't use the TSM (then
ADSM) database to store the directory structure but put it in the same
location as the file contents. DIRMC therefore is a performance
optimization for Novell clients and (per my understanding) only works
for Novell clients.
Steffan
Richard Sims wrote:
>
> >When I issued a restore for any given FS, all of the dirs were recreated
> >(restored) WITHOUT any tapes being called for. The first mount didn't
> >occur until a data file was needed.
> >
> >Signed confused. :-<
>
> Jochem - I think you missed some postings...
> In file system types where the directory structure is simple, *SM
is
> able to store the directory attributes, need to reconstruct it, solely
within
> the *SM database, same as it does with empty files. Only if the otherwise
> simple object is accompanied by an Access Control List does it involve so
much
> information that it has to be stored in a storage pool. That's the beauty
of
> simpler file systems: your directory structure can be restored
immediately, with
> no media mounts. This is generally the case in Unix systems, as your AIX.
>
> I summarize this in my http://people.bu.edu/rbs/ADSM.QuickFacts, under
> "DIRMc".
>
> Richard Sims, BU
