Node Setup - Lots And Lots Of Low Spec Servers Or
Mar 29, 2008
I run a large service on 2 machines (we're talking 8x2.66Ghz processing power, 4-6GB ram, etc), however we are thinking about creating a node/clustered setup to help spread the load, bandwidth, mysql (having one server for hundreds of thousands of databases is not wise it seems :p), diskspace etc. Lots of machines just seems to be a cheaper and more powerful option.
Would you advise going with lots of lower end machines, or just a few mid-range machines.
Here is what I propose:
3 of these
Dual Xeon 3GHZ Dual-Core (4x3GHz)
3GB RAM
500GB Sata Drive
4000 GB Bandwidth
100mbit
or
4 of these
XEON X3220 QUAD CORE 2.4GHZ 1066FSB
2GB DDR2 RAM (Upgradeable)
250GB HDD
2000GB Bandwidth
100mbit
or
7 of these
Dual Xeon 3.06 Ghz
2GB DDR2 RAM
250GB SATA
2000GB BW/MONTH
100mbit
All of the above are roughly similar prices in total.
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Code:
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www newegg com/Product/Product.aspx?Item=N82E16816702010
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www newegg com/Product/Product.aspx?Item=N82E16816116062
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Jul 9, 2008
We are currently looking into getting a new setup to serve our online store, and I would be thankful for feedback as to which servers to choose.
Today almost the entire store is on a single three year old dual proc/dual core server (4 gb ram, RAID5) that is beginning to get overloaded. (There is also a simpler secondary server that serves some static content and does some cron jobs.)
The system is a in-house developed LAMP (where the P is mod_perl/Mason). The database is rather large, two tables with 2-6 million rows are hit multiple times on most public pages - these grow with ~10% per year. Several other often-used tables are in the few-hundred thousand to a million rows, also continuously growing.
We anticipate rapid sales/visit growth over the next couple of years (a good day today is 6000-8000 visits), so I'm thinking of separating the database and web server. The most likely hosting candidate right now is Softlayer's WDC data center (we are located in Europe).
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Database server
Dual Xeon 5430 - 2.66GHz
8GB ram
RAIDed 3x73GB (or possibly 147GB) (15k rpm). I'm thinking RAID1? The big tables are not written to too much during the day, so read performance is more important than writing.
Web server
This (these) would be serving the Apache/mod_perl part of the system. Some static content (images and some PDFs) unless we put them on a separate server (all static content are placed in a single folder so it would be easy to do a mod_rewrite to an image server).
Dual Xeon 5050 or 7320
4GB ram
2x73GB (SCSI 10k rpm) RAID1
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