sactobob
Dabbler
- Joined
- May 12, 2015
- Messages
- 23
I'm seriously looking at these for a FreeNAS box of 6 drives as a back-end for shared data among 3 ESXi boxes and other uses. This FreeNAS box won't store the OS, just shared data among VMs. The specs on these are incredible for "consumer" SSds, which I think at this point is blurred anyways. Except for costs, reliability (MTBF-wise) alone is above most standard HDs.
Question for the "Pros"; With 6 drives and and I only require around 1.5tb space. RaidZ2, Z3, or mirrored vdev? The data is critical though, is speed going to be an issue in Z2/3 vs. mirrors even with SSDs that are this fast?
PS. The box is dual hex-core 5650s, 64gb ECC, 4x1gb nic that can be lacp across 2 linked cisco switches. The controller is an H200 so no battery backed cache. Maybe need a ZIL/SLog? The system is in a telco facility with UPSes/Generator.. HOWEVER, 3 times in the last 2 months their fancy UPS didn't do its thing, which they tell me has since been addressed, but you never know...
I've been testing 4 of the 512GBs and planning on purchasing another 12. They have a 10 year warranty, which I could care less about as long as data is safe, but if Samsung is willing to warranty that long they must have some confidence the drives will do what they say.Performance
Max Sequential Read Up to 550 MBps
Max Sequential Write Up to 520 MBps
4KB Random Read Up to 100,000 IOPS
4KB Random Write Up to 90,000 IOPS
MTBF 2,000,000 hours
Samsung's V-NAND technology is built to handle 150 Terabytes Written (TBW) which equates to a 40GB daily read/write workload over a 10-year period.
Question for the "Pros"; With 6 drives and and I only require around 1.5tb space. RaidZ2, Z3, or mirrored vdev? The data is critical though, is speed going to be an issue in Z2/3 vs. mirrors even with SSDs that are this fast?
PS. The box is dual hex-core 5650s, 64gb ECC, 4x1gb nic that can be lacp across 2 linked cisco switches. The controller is an H200 so no battery backed cache. Maybe need a ZIL/SLog? The system is in a telco facility with UPSes/Generator.. HOWEVER, 3 times in the last 2 months their fancy UPS didn't do its thing, which they tell me has since been addressed, but you never know...
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