Thanks to all that replied.....
The problem/inconvinience has been resolved. Only problem was that HSM
was activated after the filesystem has been exported.
Regards
Gerrit van Zyl
"Tracy T." wrote:
> Yes, HSM works pretty well on NFS exported
> filesystems. All of my HSM filesystems are NFS
> exported to clients that do not have the HSM software
> resident. Once an NFS client accesses a file that is
> on a mounted HSM filesystem, an automatic recall of
> the file is issued. One drawback is that the NFS
> clients don't have access to the HSM dsm* commands -
> so users are not able to issue recalls and migrated
> interactively.
>
> Couple of tips:
> 1. Make sure that the recall mode for these HSM
> migrated files is "normal", i.e, not migrate-on-close
> or read-without-recall. NFS opens and closes files
> multiple times when accessed by an NFS client, so your
> performance will plummet.
> 2. Use hard background mounts when mounting these
> filesystems to the NFS clients. I have some
> applications on the NFS clients that access files in
> these HSM filesystems - and not all applications will
> wait the necessary time for the file to be recalled.
> Had some major problems with the application erroring,
> only because it couldn't wait for the file to be
> recalled.
>
> I have a copy of the redbook, "Using ADSM HSM", that
> is no telling how old - but anyway, it has a chapter
> in it entitled "Migrating NFS File Systems". It gives
> a step-by-step on what to do and what not.
>
> --- Gerrit van Zyl <gvanzyl AT FARITEC.CO DOT ZA> wrote:
> > Hi All,
> >
> > I need advice on how to manage HSM on a NFS
> > filesystem. Is it
> > possible? My scenario is as follows:
> >
> > I've got a filesystem on a node in a SP environment
> > for example /TEST on
> > Node 5. This filesystem is NFS mounted to several
> > nodes in the SP.
> > ADSM HSM is active on /TEST on Node 5. Node 25
> > access a file that has
> > been migrated and can only see 4096k of that file
> > (the portion left).
> > Is it possible for Node 25 to share the migration
> > info, so that like in
> > this example that ADSM HSM will recall the migrated
> > file, even if it is
> > accessed form Node 25?
> >
> > AIX 4.3.2.0
> > ADSM Server 3.1.2.57
> > ADSM Client 3.1.20.7
> >
> >
> > > begin:vcard
> > n:;
> > x-mozilla-html:FALSE
> > adr:;;;;;;
> > version:2.1
> > note;quoted-printable: ///=0D=0A
> > (o
> > o)=0D=0A+----------oOO--(_)------------+=0D=0A|
> > |=0D=0A| Gerrit van
> > Zyl |=0D=0A| Snr Consultant
> > |=0D=0A| Faritec (Pty) Ltd |=0D=0A|
> > gvanzyl AT faritec.co DOT za |=0D=0A| 0825704266
> > |=0D=0A|
> > |=0D=0A+---------------------oOO-------+=0D=0A
> > |_|_|=0D=0A /|
> > |\=0D=0A______ _ooO_Ooo___________=0D=0A=0D=0A
> > end:vcard
> >
>
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