Hi Everyone,
First of all I would like to thank everyone for sharing ineradicable amount of information , it's very helpful and the community here is amazing !
In the last few weeks I was collecting data from many threads but unfortunately I still have some gaps that I would like to share with you.
Currently we have 25 ESX servers and we're using a Nimble storage machine, in order to reduce the IT cost we were thinking to use FreeNAS for non-critical environments such as Dev/Tests
I was thinking to build a FreeNAS machine with the following spec :
1 * chassis : SUPERMICRO CSE-846BE1C-R1K03JBOD - here
1 * motherboard : Supermicro X10SRA-F-O - here
1 * CPU : Xeon E5 -2640 V4 - here
4 * RAM : Samsung DDR4 2400 LRDIMM 32GB M386A4G40DM1-CRC (128G total) - here
2 * controllers: LSI Logic Controller Card H5-25573-00 9300-8i
24 * Magnetic disks: hitachi He10 / seagate enterprise capacity 10tb
2 * SLOG: samsung 970 pro 512G connected via PCI adapter or Intel Optane SSD 900P
2 * L2ARC : samsung 970 evo 500G connected via sata or samsung 970 pro 512G
1 * PCI adapter for both m2 ssd (or something similar) - here
Questions :
1. What would be the best configuration, I understood that the best practice is less than 12 drives in a pool and I need a dedicated SLOG and L2ARC for each pool.
it means that we need two pools each of one of them with 12 spindles disks 1 SLOG and 1 L2ARC, am I right or I'm missing something ?
2. I'm not sure if raidz2 will be good enough or should I use mirror instead ?
3. Which hard disk is more recommended hitachi He10 or Seagate enterprise capacity 10tb or you might have other recommendations ?
4. If you have any comments about my spec it'll be great
5. I've seen that usually the recommendation for L2ARC is SSD which is not NVMe so why tactfully not use NVMe for L2ARC ?
6.What should be the L2ARC size that I need for such setup ?
Thanks a lot,
Lior.
First of all I would like to thank everyone for sharing ineradicable amount of information , it's very helpful and the community here is amazing !
In the last few weeks I was collecting data from many threads but unfortunately I still have some gaps that I would like to share with you.
Currently we have 25 ESX servers and we're using a Nimble storage machine, in order to reduce the IT cost we were thinking to use FreeNAS for non-critical environments such as Dev/Tests
I was thinking to build a FreeNAS machine with the following spec :
1 * chassis : SUPERMICRO CSE-846BE1C-R1K03JBOD - here
1 * motherboard : Supermicro X10SRA-F-O - here
1 * CPU : Xeon E5 -2640 V4 - here
4 * RAM : Samsung DDR4 2400 LRDIMM 32GB M386A4G40DM1-CRC (128G total) - here
2 * controllers: LSI Logic Controller Card H5-25573-00 9300-8i
24 * Magnetic disks: hitachi He10 / seagate enterprise capacity 10tb
2 * SLOG: samsung 970 pro 512G connected via PCI adapter or Intel Optane SSD 900P
2 * L2ARC : samsung 970 evo 500G connected via sata or samsung 970 pro 512G
1 * PCI adapter for both m2 ssd (or something similar) - here
Questions :
1. What would be the best configuration, I understood that the best practice is less than 12 drives in a pool and I need a dedicated SLOG and L2ARC for each pool.
it means that we need two pools each of one of them with 12 spindles disks 1 SLOG and 1 L2ARC, am I right or I'm missing something ?
2. I'm not sure if raidz2 will be good enough or should I use mirror instead ?
3. Which hard disk is more recommended hitachi He10 or Seagate enterprise capacity 10tb or you might have other recommendations ?
4. If you have any comments about my spec it'll be great
5. I've seen that usually the recommendation for L2ARC is SSD which is not NVMe so why tactfully not use NVMe for L2ARC ?
6.What should be the L2ARC size that I need for such setup ?
Thanks a lot,
Lior.