SSD Only?

[kspare]

I'm just doing some research, we're looking at doing a 24 2.5' san with all 500gb ssd's. Just curious if anyone has recommended drives?

 

[Ericloewe]

Depends on your workload. If it's heavy, something like the Intel S3700 is a server favorite.

 

[kspare]

fair enough, what would be your next option of cost was a bit of concern? We are looking for 24 of them.

 

[Ericloewe]

Probably one of the cheaper models, like the S3600 or S3500.

 

[diehard]

Maybe look into the 845DC Evo if you want a lower cost "enterprise" quality drive.

 

[mjws00]

You need to consider your use case. Unless you have some really strict purpose beyond speed. These are pool disks. Not sure why you'd want to pay for enterprise features and internal power protection. If a drive drops, who cares. That is the point of 'RAID' Z. Look at the Samsung 850 EVO's. If you don't think they'll survive, buy the pro's. Intel drives are known for their consistent write speeds. So we love em for SLOGS, but there are new players in that game. 845DC's are beautiful... but double.

Honestly, with that many ssd's even with cheapy 500MB/s. You are going to be tapping bottle-necks all over. Samba and clock speeds, possibly controllers, even multiple 10GB connections. Pool design, protocol selection, even latency differences between fiber and copper, every little thing starts to matter... or you are throwing resources at this pool that can't BEGIN to stretch its legs.

EVEN then, if you can't hit the ARC.... you've done yourself a disservice. It takes pretty specific workloads, and usage scenario's to require this kind of speed and cost. At that point trueFLASH and the support to make this thing really hit it's potential should be considered, imho.

Good Luck.

 

[Knuuut]

I'm running 4 1 TB (zfs striped mirror aka RAID 10) Samsung 850 EVO's in a HP Gen8 1610 Microserver with 16GB RAM as NFS Storage for 12 VM's for now. No pain at all and happy users since Dec 2014. Ican easily saturate the 2 1GB builtin NIC's (rr-lagg) via NFS without eating up all the CPU-power of the Celeron.

If you don't expect >80GB data written per day, this would be my recommendation

 

[HoneyBadger]

Not sure why you'd want to pay for enterprise features and internal power protection.

Higher write endurance for one. The DC S3500 and 845DC EVO are both designed for a less write-intensive workload, and their DWPD (drive writes per day) numbers reflect that at ~0.35. The DC S3700 and 845DC Pro are rated for 10 DWPD and will survive much better in a write-heavy environment.