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Two Parameters for accessing the performance of Enterprise Hard Disk
1. IOPS for small random read/writes
2. Throughput for large sequential read/writes

My question is-
is there any relationship between higher rpm of disk to the throughput?

What is the throughput of the following disks:
1. 15000 rpm FC Hard Disk
2. 10000 rpm FC Hard Disk
3. 15000 rpm 6Gbps SAS Disk
4. 10000 rpm 6Gbps SAS Disk
5. 7200 rpm SATA Disk
6. 7200 rpm SATA II Disk

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Nobody would call ANY 7.2k SATA disk an 'Enterprise Disk' - 'Jumped up radio shack toy' perhaps... – Chopper3 Aug 24 '11 at 13:39
No one is going to be able to give your throughput numbers. The vendors don't publish numbers for a reason, every setup will be different and will get different numbers. You'll have to test to figure it out. – mrdenny♦ Aug 24 '11 at 14:35
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closed as not constructive by Graeme Donaldson, Shane Madden, Ward, ErikA, Chopper3 Aug 25 '11 at 17:30

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2 Answers

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Yes, there is a relation and 15K drives typically offer slightly higher file transfer speeds, but a higher RPM disk's benefit is more in the IOPS department. Here is a comprison of 15K to 10K RPM Drives: http://www.tomshardware.com/reviews/sas-hard-drives,1702.html

Since the drive interface and the storage technology keeps changing, you would probably benefit from looking at your specific brand/model drive performance here:
http://www.storagereview.com/Testbed4Compare.sr

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up vote 0 down vote

Probably the best answers would come from looking at the specs and I/O benchmarks of various drives, which should be available on the vendor website and hardware testing sites. You also have variation by configuration, since RAID can and will affect your I/O for reads and writes (with different results on each.)

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