cookiesowns
Dabbler
- Joined
- Jun 8, 2014
- Messages
- 31
Heyo!
We're looking for around 64TB+ of storage to last us for the next few years. We value data security more so than performance, as most of our data sets are sequential operations. However I believe we'll need at least the iops of a 8 drive RAID-6. Not sure how that compares to in the ZFS world
Originally I was thinking of one big Raid-Z3 with 11 drives then adding another 11 drives later down the road, for a pool of 2x 11 drive Z3's. Drives used would be SAS enterprise WD Re's or Hitachi Ultrastars. We're open to using seagate drives, if people here can share their experience with the enterprise series.
Maybe going with 2x 7 Drive Z3's to start would be better? then adding another 7 drive z3 to expand to 48TB? Would just buying the total drives we need now be a better option? As then we can have stripes from DAY 1 of the array? I don't see us needing more than 64TB for 1 single pool.
We have 2 main departments, and they would prefer to have one machine dedicated to them, however, after doing some math, it seems that if we build a 2x64TB pool with 4x Raid Z2's each, we could do replication, so we can sustain one entire server going poof but having the departments share the servers.
However I'm just not sure if it's better to buy what we think we'll only use for the next ~3-5years, or expand as we go. As data won't be moved around much, so we won't gain IOPS as we add more vdevs into the pool. Which sort of defeats the purpose.
What are people's thoughts on using desktop drives? It would make building 2x 64TB servers much more feasible.
Hardware going into this would be:
CPU: Intel E5-1620 V2
MB: Supermicro X9SRH-7TF ( Yes, we have 10G ethernet for our LAN )
HBA: LSI 9207-8i
Chassis: Supermicro SC846BA-R920B
RAM: 64GB DDR3-1866 ECC REG 4x16GB. Was originally planning on going with 32GB, but the more RAM the merrier right?
Also, another question I have is backups. What are some common ways users are doing backups on FreeNAS? Rsync? Snapshots + Rsync?
How does FreeNAS handle external USB drives?
We're looking for around 64TB+ of storage to last us for the next few years. We value data security more so than performance, as most of our data sets are sequential operations. However I believe we'll need at least the iops of a 8 drive RAID-6. Not sure how that compares to in the ZFS world
Originally I was thinking of one big Raid-Z3 with 11 drives then adding another 11 drives later down the road, for a pool of 2x 11 drive Z3's. Drives used would be SAS enterprise WD Re's or Hitachi Ultrastars. We're open to using seagate drives, if people here can share their experience with the enterprise series.
Maybe going with 2x 7 Drive Z3's to start would be better? then adding another 7 drive z3 to expand to 48TB? Would just buying the total drives we need now be a better option? As then we can have stripes from DAY 1 of the array? I don't see us needing more than 64TB for 1 single pool.
We have 2 main departments, and they would prefer to have one machine dedicated to them, however, after doing some math, it seems that if we build a 2x64TB pool with 4x Raid Z2's each, we could do replication, so we can sustain one entire server going poof but having the departments share the servers.
However I'm just not sure if it's better to buy what we think we'll only use for the next ~3-5years, or expand as we go. As data won't be moved around much, so we won't gain IOPS as we add more vdevs into the pool. Which sort of defeats the purpose.
What are people's thoughts on using desktop drives? It would make building 2x 64TB servers much more feasible.
Hardware going into this would be:
CPU: Intel E5-1620 V2
MB: Supermicro X9SRH-7TF ( Yes, we have 10G ethernet for our LAN )
HBA: LSI 9207-8i
Chassis: Supermicro SC846BA-R920B
RAM: 64GB DDR3-1866 ECC REG 4x16GB. Was originally planning on going with 32GB, but the more RAM the merrier right?
Also, another question I have is backups. What are some common ways users are doing backups on FreeNAS? Rsync? Snapshots + Rsync?
How does FreeNAS handle external USB drives?