Tuesday, July 22
1000 IOPS Or Bust
I ordered a 64GB SSD today - an OCZ Core Series drive, which is substantially cheaper than what has come before. Roughly in price parity with SD cards, but much faster - the quoted speeds are 120MB/sec for reads and 80MB/sec for writes.
What I'm really interested in, though, is random write performance, not sequential writes. Assuming that the internal erase block size is 64KB, and that writing random full blocks is no different than writing sequential full blocks (and for flash memory, there shouldn't be any difference), 80MB/sec represents 1250 IOPS. That's equal to a 10- or 12- drive array of standard 7200RPM SATA drives.
If it delivers on that, not only will I be very happy, I'll be ordering a few more for the servers.
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I ordered a 64GB SSD today - an OCZ Core Series drive, which is substantially cheaper than what has come before. Roughly in price parity with SD cards, but much faster - the quoted speeds are 120MB/sec for reads and 80MB/sec for writes.
What I'm really interested in, though, is random write performance, not sequential writes. Assuming that the internal erase block size is 64KB, and that writing random full blocks is no different than writing sequential full blocks (and for flash memory, there shouldn't be any difference), 80MB/sec represents 1250 IOPS. That's equal to a 10- or 12- drive array of standard 7200RPM SATA drives.
If it delivers on that, not only will I be very happy, I'll be ordering a few more for the servers.
Posted by: Pixy Misa at
10:31 PM
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