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- Newsgroups: comp.databases.oracle
- Path: sparky!uunet!news.larc.nasa.gov!p228
- From: p228@uni05.larc.nasa.gov (Bailey Bob)
- Subject: Re: more info about: Re: Which DEC/Ultrix box to pick?
- Message-ID: <BuKp26.7C6@news.larc.nasa.gov>
- Sender: news@news.larc.nasa.gov (USENET Network News)
- Organization: Unisys-Hampton VA
- References: <1992Sep13.044653.2579@u.washington.edu> <1992Sep13.165429.9603@u.washington.edu>
- Date: Mon, 14 Sep 1992 14:46:53 GMT
- Lines: 51
-
- In article <1992Sep13.165429.9603@u.washington.edu> cintra4@milton.u.washington.edu (Dave Lange) writes:
- >I have chosen Oracle for a database to hold 500M to 1.5G of data for querying,
- >not transactions or dataentry. It will be used by a maximum of 5 users at a
- >time. I originally intended to use oracl.nlm on a dedicated netware server.
- >The hardware was to be an EISA based 486DX2-66 with 17M, an Adaptec 1740 SCSI
- >contro and a 32 bit ethernet board.
- >
- >>I would like to consider shifting this to unix, using the DEC platforms.
- >>I understand unix has a flat loading curve as the number of users
- >>increases, but this isn't my situation. What I need is the lower part
- >>of this load curve to match or exceed the performance the NLM would have
- >>provided on the selected platform.
- >>
- >>Without starting wars over whose system is better, I would like to know
- >>what you have found out, in terms of benchmarks or use, about which
- >>Ultrix box will give me equivalent performance in my situation.
- >>
- >>Also, how close to the top of the list is Ultrix in terms of when new
- >>releases of Oracle are ported to different platforms?
- >>
-
- While I don't have any exact performance specs handy, I can tell you what we
- are doing here with the DECsystem 5000:
-
- We are running Oracle 6.0 & SQL*Forms 3.0 on 8 DECsystem 5000's that are
- configured as a distributed database. The exact configuration of each 5000
- is tailored to the number of users on each machine. The smallest is a
- DECsystem 5000 Model 200 with 80M memory. This one supports around 75 users,
- although the user license limits it to 32 concurrent users. Performance on
- this machine is satisfactory. The largest is a 5000 model 200 with 224M
- memory. This one needs to support about 140 users eventually. The license
- on this one also limits it to 32 concurrent users. In this configuration,
- it is being overburdened. We are upgrading it to a model 240 (55% faster)
- and will probably add more memory so that we can upgrade to a 64 user license.
-
- These machines start somewhere in the low $20K range and go up from there. We
- are considering the new DEC Alpha machine for the future. As I understand,
- it is about 5 times faster and not much more expensive: i.e. more bang for
- the buck!
-
- For your application, DEC also makes some smaller DECstation 5000's that might
- be suitable. These are designed to be individual workstations, but could
- possibly support 5 users; ask DEC, they can tell you what would be appropriate.
-
- As far as Oracle is concerned, historically, one of the first platforms that
- Oracle was ported to was DEC VMS. From what I have been told, since the
- industry seems to be moving away from VMS and toward Ultrix/Unix, Oracle will
- likely follow suit.
-
- Bob Bailey p228@uni05.larc.nasa.gov
-
-