Hi. At work we are redesigning a CCTV solution and we are evaluating the move from rotating drives to SSD's.
My main issue with SSD's in our scenario is the following:
1. The systems need to be able to receive from 36-72 4mbit streams of CCTV data concurrently = 18-36MB/S in 2MB random chuncks.
2. Since its recieving and has very little need for reading from the data, id guess we could say 95% writes and 5% reads.
3. We are gonna push the non-hot data over to a big NAS with Rotating SATA drives in sequencial streams so we mitigate the randomness of the writes.
4. Since these CCTV systems are offshore we need em to endure pressure changes, high temperature etc = hence the SSD's are perfect for this but one thing... Write ressiliancy..
5. Example 18MB/S = 1,5TB a day written.. A normal consumer SSD will die within 6-9months.. and these systems have 5 year life.. so we need to look at e-mlc or slc based solutions... Like the Samsung SM-825
So my question is, is this a good way of aproaching this? Since we need alot of SAS drives to be able to sustain a stable random IO performance of 18MB/s
Any input is most welcome!
PS! Systems will be a dell R510 with the H700 controller (lsi9265) running on w2008r2x64
Best regards TE