The configuration of the server is :
HP NetServer LxPro 2xPentiumPro 200Mhz
256MB Ram
50GB on one Raid 5 Volume (5x9GB+1x9GB HotSpare), on an HP NetRaid
Controller
StorageTek 9714 Library with 4 DLT7000 Drive connected on 2xAHA2944UW
Differential
NetCard 3Com 3C905XL (100Mb/s Full Duplex)

I have made some test today. My first question was false. I have better
transfert rate with the biggest files among 9MB/s. When files are small
(<50MB) the transfert rate is 1.5-2MB/s

I confirm that ADSM doesn't need a lot off memory (128MB seems to be
enough).
Eric

> ----------
> From:         Kelly J. Lipp[SMTP:lipp AT STORSOL DOT COM]
> Reply To:     ADSM: Dist Stor Manager
> Sent:         lundi 2 mars 1998 16:17
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Performance on NT Server
>
> Eric,
>
> The more memory the better.  You note didn't say how much you were
> using,
> but 256 is probably enough.  I've seen a site with 640 MB, but never
> saw
> ADSM use it all.  NT will use the memory for file caching, however.
>
> I'm not surprised to hear you are getting better performance direct to
> tape.  Especially if you have very fast networks.
>
> There is a setting in NT under Network, Services, Server, Properties,
> Maximize throughput for network applications.  You might set this and
> retry
> your numbers.  We have seen some benefit in using this setting instead
> of
> the file share setting.
>
> Has anybody done any comparison between a RAID 5 array and just a
> bunch of
> disks?  I'm thinking RAID 5 enough for the database and leave the rest
> alone for storage pools.  Data moves to tape so protection isn't
> essential
> on the disk storage pools.
>
> Kelly
>
> -----Original Message-----
> From:   Boireau, Eric (MED-Cap Gemini) [SMTP:BOIREER AT EUROMSX.GEMSE DOT FR]
> Sent:   Monday, March 02, 1998 6:39 AM
> To:     ADSM-L AT VM.MARIST DOT EDU
> Subject:        Performance on NT Server
>
>  itHello,
> Does any one has perform some benchmark on disk configuration with
> ADSM
> V3.1 NT. The hardware used is an HP LxPro 2xPentium Pro 200 with 50GB
> Raid 5. May be there is some configuration in WinNT which are better
> that other for performance. Actually all ADSM disk volume (DB, LOG,
> STG)
> are on the same NTFS partition (32GB). I have note when the data goes
> directly to tape it is more speed that using disk storage pool (Tape
> :DLT7000 STK9714).
>
> Thanks
>
> > g          GE Medical Systems
> > __________________________________
> > Eric Boireau                                                GITS
> > Unix / NT  System Engineer
> >
> > GE Medical Systems S.A
> > 283, rue de la Miniere
> > 78533 BUC Cedex France
> > Tel: (33) 01 30 70 39 51,  DC: 8*644 3951
> > Fax: (33) 01 30 70 39 20, DC: 8*644 3920
> > mailto:Eric.Boireau AT med.ge DOT com
> >
> > Salutations / Best Regards
> >
>