In the process of trying to figure out my VM performance problems, I’ve been doing a lot of filesystem benchmarking. Unfortunately, there isn’t a lot of consistency between platforms or machine classes as to benchmarking methodology, so I’ve had some trouble generating comparable numbers. However, I’ve gotten the solaris filebench suite running on linux, and bonnie++ running on solaris, so I can now generate comparable numbers across both platforms.
One of my primary interests is the throughput I can get out of the 3ware 7506 raid controller in my unix nas box, both in order to optimize it and in order to compare to other solutions and determine if they will actually be an upgrade or not. In the process, I’ve been benchmarking an older Dell Precision Workstation 420. It has 4 wd1200jb drives plugged into its onboard IDE boards (yes, they are sharing ide channels), and is currently running opensolaris nv47. I played around with a few different ZFS configurations, but eventually settled on raidz, leaving me with 360G usable disk space. Here’s some of the numbers I got:
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