I am planning to deploy a cost efficient yet performant SAN/NAS setup for our main office. Use cases: storage for a 20-30 user VDI deployment, file server, primary backup location. Required usable capacity = 10TB.
The storage software counterpart is yet to be considered. Right now I am researching the possible configurations of underlying storage hardware. I've compared the prices for 10K RPM SAS based RAID10 setup (10x2TB HDDs) and SATA SSD RAID5 configuration (7x 1.6TB SSDs). Interestingly, SSD setup comes 20% cheaper if read-intensive drives are used and costs 10% more if I choose mix-use drives. Which means that all-flash RAID5 looks like a feasible option, at least on paper.
However, a long time ago, I've experienced TONS of troubles with RAID5 in a "good old" 5x 70GB SCSI HDD configuration. Even now, that thing still gives me nightmares. Moreover, I've overlooked some threads like This and This and it looks like some people are seriously convinced that my "all-flash RAID5" plan is not going to work.
So, the question is: do you guys have any good reading on this topic or could you share your personal experience with RAID5 SSD setups? Many thanks in advance!