Hello Jim,
we have installed and manage some very large DSpaces, but also a few
moderate ones. An example of a large installation:
http://lirias.kuleuven.be holds around 130.000 items, of which only around
2500 of them contain full-text. This asset store is around 7GB. It's mainly
academic research output (papers, conference presentations, ...). So
currently, the average size of a bitstream is around 2.8MB. But this will be
very different if your repository is oriented towards datasets, audio or
video.
Concerning processing power and memory: the system currently has around 1000
unique visitors daily. There are 4000 e-persons. During office hours, we
experience an average of 4 concurrent logged-in users, performing
submissions, etc (= intensive on database and indexes). The tomcat has been
given 2GB of memory, while the whole system has 3.5GB of RAM. This doesn't
really cover the total load, as we use swapping, but it's enough to keep the
system running. A recommendation: don't cut down on disk speed, you will
need 15.000 rpm disks.
The server has 1 physical dual-core processor, with hyper threading (so
actually 4 virtual processors). In peak times, this is becoming a bottle
neck.
If you could illustrate the purposes of your installation, or the estimated
number of users, I could provide you with a specific case, that possibly
more closly matches what you're looking at.
with kindest regards,
Bram Luyten
--
@mire NV
Romeinse Straat 18
3001 Heverlee
Belgium
+32 2 888 29 56
http://www.atmire.com - Institutional Repository Solutions
http://www.togather.eu - Before getting together, get [EMAIL PROTECTED]
On Wed, May 21, 2008 at 4:33 PM, Jim Price <[EMAIL PROTECTED]>
wrote:
> Hello,
>
> We are currently running a test instance on a Sun Enterprise 450 running
> Solaris 10. We are currently looking into new hardware for a production
> environment.
> We would like to find out if anyone is willing to share their experiences
> with hardware?
>
> What platform would you recommend for a school starting with dspace?
> What are you using for hardware?
> What do you store?
> How big is your data storage?
> How much growth did you see in your first year of use?
> What kind of loads are you experiencing?
>
>
> Thanks,
> Jim
>
>
>
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