Part II: How many IOPS can a HDD, HHDD or SSD do with VMware?
May 19, 2013 – 10:12 pmHow many IOPS can a HDD, HHDD or SSD do? This is the second post of a two-part series looking at storage performance, specifically in the context of drive or device (e.g. mediums) characteristics across HDD, HHDD and SSD. In the first post the focus was around putting some context around drive or device performance with the second part looking at some workload characteristics (e.g. benchmarks). A common question is how many IOPS (IO Operations Per Second) can a storage device or system do? The answer is or should be it depends. Here are some examples to give you some more insight. For example, the following shows how IOPS vary by changing the percent of reads, writes, random and sequential for a 4K (4,096 bytes or 4 KBytes) IO size with each test step (4 minutes each). ...


