We have implemented ADSM Version 3 on NT. We do not have anywhere near 1000
clients, but the clients we do have are fairly large file servers with
approximately 1 terrabyte total  disk space. The nightly change rate is
around 40gb and sometimes hits 80 gb per night. On a typical night, backups
start around  6pm and complete by 3am. We have moved some of the clients to
a dedicated 100 megabit Ethernet network, but most of the data is currently
being moved across 16 megabit Token Ring. We tried ADSM/NT 2.1 on the same
hardware, but it could not get any where near this throughput, when we went
to V3 we saw a 300% performance improvement. We also had taken  the sever
disk out of its raid 5 configuration and saw a 33% improvement (this was
done while under V2 before we went to V3). NT and the ADSM database run on
raid 1 mirrored disk and the storage pools are native non-fault-tolerent
disk. Our storage pools  are 52gb. All other functions like expiration,
migration and reclamation are running on a timely basis. At last count
these clients contained over 2.5 million files, but most of the nightly
changed data is from large database files.

Server hardware:
IBM 704
2 200mhz Pentium Pro
256 meg memory
2 4.5gb raid1 hard disk (operating system)
2 9gb raid1 hard disk (db & recovery log)
6 9gb unprotected disk (stg pools)

STK 9714
100 slots
4 DLT7000 tape drives





BOIREER AT EUROMSX.GEMSE DOT FR on 01/23/98 11:39:57 AM

Please respond to ADSM-L AT VM.MARIST DOT EDU

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: Mike Wilson/Texas Utilities)
Subject:  ADSM V3 on NT




Hello,
Has anybody already implemented ADSM V3 NT with more than 1000 clients.
If so, what type of server are you using?
We are planning to implement this solution with 1800 PC client on a HP
LxPro Bi-PentiumPro 200 with 256MB of RAM and 50GB of Disk (Raid 5)
connected to a StorageTek 9714 (100xDLT7000) library. We are wondering
if NT can handle this.
Thanks.

> g          GE Medical Systems
> __________________________________
> Eric Boireau                                                GITS
> Unix / NT  System Engineer
>
> GE Medical Systems S.A
> 283, rue de la Mini?re
> 78533 BUC Cedex France
> T?l: (33) 01 30 70 39 51,  DC: 8*644 3951
> Fax: (33) 01 30 70 39 20, DC: 8*644 3920
> mailto:boireer AT euromsx.gemse DOT fr
>
> Salutations / Best Regards
>
>
>