...actually, I think it's very helpful. The array is currently grossly over-sized, but only holding 105Gb of actual data. I could easily stuff it full of 250G or 500G SSDs without breaking the bank, and end up with a much smaller total capacity array... and the total, smaller size would be fine. I'm really leaning towards SSDs but wanted to check with the hive mind.
On Dec 6, 2016, at 3:52 PM, Adam Levin <levins...@gmail.com> wrote: As a general rule, sequential streams (sustained read/write) are the bread and butter of spinning rust. SSD's eat random seeks for breakfast. The trick here, though, is whether the it's worth the extra money to get SSD over the 15k with only a gigabit ethernet connection. I'm inclined to say that if your workload is seriously random, you'd be better off with SSD, because random workloads won't get close to those speeds anyway. The one caveat here is if it's the same data over and over again, then a simple cache in front of 15k would probably outperform that. It's a delicate ballet of criteria. Either the SSD or 15k will crush the 7200's performance, that's for sure. SSD is also easier on power consumption and should, in theory, be more reliable (assuming you get good quality drives). That didn't help at all, did it? Sigh... -Adam _______________________________________________ Discuss mailing list Discuss@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
