Ok some back story here: http://www.neowin.ne...storage-sizing/
So basically I have 4 x 300GB SAS 15K RPM in RAID-10 totaling ~550GB.
With some VHDs and Images use growing figured I needed to upgrade to get some breathing room. Have about 80GB now with limited shadow copies available..
In general Exchange 2010 now relies less on HDD I/O as far as I read because it basically does everything in RAM then eventually writes it to storage so not really worried about that so much. They've made it so efficient now you can mount the storage from a regular SMB NAS share.
SQL of-course is more HDD I/O intensive but I think SQL 2008 R2 is similar to Exchange in that it sucks up RAM and does transactions there then records them to the DB. it's still more reliant on HDD speeds (latency) but we don't even use it so much anymore as the software we did use is now hosted but we still use it for a small software with 2-3 users at a time so doubt that's very I/O intensive
Now finally down to the question - For the storage needs needing to grow would using 4 x 1TB SAS 7200RPM drives have a big loss in performance?
I doubt it but figured i'd get some opinions. I'm guessing the 1TB aerial density would make up for some of the lost throughput of 15K. Normal 7200RPM SATA drives are pushing 120MB/s each now. So i'm guessing in a RAID10 they can do 300-400MB/s which should be more than enough IMO.
So anyone have any ideas or comments about this switch?
Edited by SHoTTa35, 27 September 2013 - 16:34. Reason: Changed SATA - SAS 7200RPM