04-25-2009, 04:38 AM
There's a lot of FUD out there about SSDs. The bottom line is that they have at LEAST a 5-year lifespan for most enterprise applications, which could equate into a much longer lifespan for home users.
Also, the RAID-5 "bit flip" rebuild error situation is indeed quite possible. See this article - Why RAID-5 stops working.
On the premise posed by that article, and due to the fact it's entirely likely in enterprise SATA/SAS deployments of ridiculously-large arrays, I cannot wait for the "bugs" to be sorted out with SSDs. Once the write/erase lifecycle limitations are fixed... rotational HDDs are a thing of the past - literally.
For my own sanity, I'd go with multiple RAID-1s. I did indeed consider a large, 4TB raw RAID-5 (3TB before formatting), but now I might just make two 2TB RAID-1 arrays.
Also, the RAID-5 "bit flip" rebuild error situation is indeed quite possible. See this article - Why RAID-5 stops working.
On the premise posed by that article, and due to the fact it's entirely likely in enterprise SATA/SAS deployments of ridiculously-large arrays, I cannot wait for the "bugs" to be sorted out with SSDs. Once the write/erase lifecycle limitations are fixed... rotational HDDs are a thing of the past - literally.
For my own sanity, I'd go with multiple RAID-1s. I did indeed consider a large, 4TB raw RAID-5 (3TB before formatting), but now I might just make two 2TB RAID-1 arrays.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.