OCZ Vector 256GB Solid State Drive Review
Chris Hadley / 12 years ago
IOMeter is an I/O subsystem measurement and characterization tool for single and clustered systems. It is used as a benchmark and troubleshooting tool and is easily configured to replicate the behaviour of many popular applications. One commonly quoted measurement provided by the tool is IOPS.
IOMeter allows the configuration of disk parameters such as the ‘Maximum Disk Size’, ‘Starting Disk Sector’ and ‘# of Outstanding I/Os’. This allows a user to configure a test file upon which the ‘Access Specifications’ configure the I/O types to the file. Configurable items within the Access Specifications are:
- Transfer Request Size
- Percent Random/Sequential distribution.
- Percent Read/Write Distribution
- Aligned I/O’s.
- Reply Size
- TCP/IP status
- Burstiness.
Looking at the read IOPs to start, the Vector tops out at just under 93k, putting it just under the 100k rated limit.
Write IOPs experienced were a lot lower than the rated speed when set to random access, but we did find them increase closer to the rated 95k when IOMeter was set to sequential writing.
