ADSM-L

Re: Million file limit?

1997-01-02 18:07:02
Subject: Re: Million file limit?
From: William White <www AT CNP.TEA.STATE.TX DOT US>
Date: Thu, 2 Jan 1997 17:07:02 -0600
>
> At 10:29 AM 1/2/97 -0500, Joe Morris wrote:
> >I would strongly encourage you to get involved in attending some of the
> >USENIX Conferences.  At least make sure you get someone to the LISA
> >Conference.  Thousands turn out for this annual, week-long conference held
> >in the Fall.  This is not just another circus like Interop, but real
> >administrators who come to learn and share admin experiences with others.
> >There were quite a few vendors this past year, but only 1 or 2 of them
> >dealt with enterprise backups--lousy ones at that.  You can get more info
> >from http:///www.usenix.org.
>
> Several of our people went to LISA in Chicago this year.  One rumor that
> came back from LISA was that ADSM failed, silently and hard, when it hit a
> million files stored.  The rumor goes on, quoting IBM as saying they're not
> going to fix it.  This is now part of the received wisdom around our site;
> frankly, I find it hard to believe based on the good experiences I have had
> setting up ADSM with 3494 libraries and 3590 drives.
>
> My guess is that the million file limit came from somone setting up an HSM
> client with only a million inodes, and when it hit a million files it quit
> accepting new ones.  Either that or someone set up their db too small.
>
> I would be interested to hear from sites that are storing more than a
> million files, especially those that are storing >1E6 files via the HSM
> client.  Also, if this story sounds familiar, and you know the details, I
> would be interested to hear about them as well.  Also: is there an easy way
> to query a filespace or storage pool to see how many files are stored in
> that filespace/storage pool?
>
> Thanks,
> --
> Bill Nickless              nickless AT mcs.anl DOT gov               +1 630 
> 252 7390
> PGP 2.6.2 Key fingerprint =  0E 0F 16 80 C5 B1 69 52  E1 44 1A A5 0E 1B 74 F7
>                  http://www.mcs.anl.gov/people/nickless
>
+++++++++++++
I have seen several posts from ADSM users, installations in Germany come most
rapidly to mind, where ADSM administrators have reported multiple millions of
files and many, many GBytes of data.  I believe this rumor is almost certainly
false.

--
(Signed)  William W. White  --  www AT tenet DOT edu   (512) 475-3557 fax 
463-9090
(Signed)  William W. White  --  www AT tenet DOT edu   (512) 475-3557 fax 
463-9090
Texas Education Agency, Systems Support Division 612, 1701 Congress Avenue, 
Austin, Texas 78701
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