Seagate 15K.3 SCSI Drive - Web Server
Published on 2002-12-09 13:05:36
The web server pattern is predominantly random read, but
I've included a small percentage of writes to better reflect what is out
in the real world. Sites such as this one run a database in addition to
static content so a 100% read pattern would not be realistic.
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Looking at the raw data shows the 15K.3 delivering about 10% more I/O's per second than the X15 36LP. That's a pretty substantial improvement and pretty consistent from start to finish there. However I/O's per second aren't much use if they aren't delivered in a timely fashion:
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Not too shabby at all. The two drives keep pace with each other until 64 outstanding I/O's are reached, at which point the 15K.3 starts to show a clean set of heels. 128 outstanding I/O's and above is pretty academic for a standalone drive. You wouldn't have a viable server at that load. That's when RAID is your friend. So, how much data is being delivered by the drives in this test? Let's see:
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There you are. A representation of the actual I/O's in MB/s. Around 10% lead to the 15K.3. A pretty good improvement over the X15 36LP.
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