KevinM
Contributor
- Joined
- Apr 23, 2013
- Messages
- 106
I am fairly new to FreeNAS and researching hardware for a new SAN using the Supermicro SuperServer 6047R-E1R36N. Here's my list so far:
16 SAMSUNG 8GB DDR3 1600 ECC
36 SEA 3TB CONST ES.2 3.5 SAS 7.2K
2 INTEL XEON E5-2620 2.00GHZ 15MB 6C
1 SUPERMICRO SUPERSTOR SRV XEON E5 6047R-E1R36N
2 SUPERMICRO SC847 INTERNAL DRIVE
1 LSI Logic Controller Card SAS 9207-8I
The e1r36n comes with an LSI controller card, but according to this post the LSI 9207-8i will allow you to control individual disks. Having not seen either of these cards in action, I am wondering about being able to identify and swap out bad drives when the card has 8 hardware ports and 36 drives attached to an expansion backplane. Anyone have any experience or recommendations for this kind of setup?
This SAN will have 108TB raw and 128 GB memory. Does this seem like a reasonable amount of memory for ZFS and RAIDZ2 if we are not using deduplication or compression? I could also get 4 TB drives for not too large a premium per TB.
I'm reading the FreeNAS guide and for RAIDZ2 I'll need 2n + 2 drives per vdev. What would be the recommended layout for 36 drives? 3 vdevs with 8 data, 2 parity and 2 spares each?
I've run into conflicting reports about the usefulness of using SSDs for ZIL logs. Should I use a couple of mirrored SSD drives, and if so what size should I be looking for this amount of storage?
In general, I would like to remove as many surprises as possible before opening the wallet. Any advice would be greatly appreciated.
16 SAMSUNG 8GB DDR3 1600 ECC
36 SEA 3TB CONST ES.2 3.5 SAS 7.2K
2 INTEL XEON E5-2620 2.00GHZ 15MB 6C
1 SUPERMICRO SUPERSTOR SRV XEON E5 6047R-E1R36N
2 SUPERMICRO SC847 INTERNAL DRIVE
1 LSI Logic Controller Card SAS 9207-8I
The e1r36n comes with an LSI controller card, but according to this post the LSI 9207-8i will allow you to control individual disks. Having not seen either of these cards in action, I am wondering about being able to identify and swap out bad drives when the card has 8 hardware ports and 36 drives attached to an expansion backplane. Anyone have any experience or recommendations for this kind of setup?
This SAN will have 108TB raw and 128 GB memory. Does this seem like a reasonable amount of memory for ZFS and RAIDZ2 if we are not using deduplication or compression? I could also get 4 TB drives for not too large a premium per TB.
I'm reading the FreeNAS guide and for RAIDZ2 I'll need 2n + 2 drives per vdev. What would be the recommended layout for 36 drives? 3 vdevs with 8 data, 2 parity and 2 spares each?
I've run into conflicting reports about the usefulness of using SSDs for ZIL logs. Should I use a couple of mirrored SSD drives, and if so what size should I be looking for this amount of storage?
In general, I would like to remove as many surprises as possible before opening the wallet. Any advice would be greatly appreciated.