Miguel Nunes
Explorer
- Joined
- May 6, 2016
- Messages
- 52
Hi all
I have been using FreeNAS in test mode only since April and I am convinced I want to keep using it.
I have started with old HDDs just to have a feeling on how to operate and manage the system using the web UI and some shell commands.
Now I want to go into production mode and there are some question about the best choice for vdevs and zpools.
My situation is this. I have 8 available slots for hot swapable hdds and 3 extra for 2.5" drives.
Currentlty I have 2 Pools. One uses one vdev with 4 500GB drives and RAID-Z2 and they other one uses a vdev with 3 2TB disks in RAID-Z1 (I remind you that this is just for testing and I am aware that with disks of this size RAID-Z2 would be the right setup. I just didn't have enough old hdds arround to implement).
I am planning to upgrade to 4 or 6TB NAS drives. What would be the trades of choosing the following configurations:
First - 2 pools each having 1 vdev of 4 discs.
Second - 1 pool with 1 vdev using 8 hdds in RAID-Z2 or even RAID-Z3.
What would be the implications in terms of data security and performance?
Would it be worse to have a flat disk spacde without silos?
I plan to use some iSCSI volumes and I read one should keep 50% freespace at least for performance.
I have 32GB of ECC RAM with an 8core avoton cpu (similar board that is shipped with the FreeNAS appliance).
What options would you recomend?
Are there others that would work better?
If there is the need for more information about my setup please feel free to ask.
Meanwhile thanks in advance for your atention.
Miguel
I have been using FreeNAS in test mode only since April and I am convinced I want to keep using it.
I have started with old HDDs just to have a feeling on how to operate and manage the system using the web UI and some shell commands.
Now I want to go into production mode and there are some question about the best choice for vdevs and zpools.
My situation is this. I have 8 available slots for hot swapable hdds and 3 extra for 2.5" drives.
Currentlty I have 2 Pools. One uses one vdev with 4 500GB drives and RAID-Z2 and they other one uses a vdev with 3 2TB disks in RAID-Z1 (I remind you that this is just for testing and I am aware that with disks of this size RAID-Z2 would be the right setup. I just didn't have enough old hdds arround to implement).
I am planning to upgrade to 4 or 6TB NAS drives. What would be the trades of choosing the following configurations:
First - 2 pools each having 1 vdev of 4 discs.
Second - 1 pool with 1 vdev using 8 hdds in RAID-Z2 or even RAID-Z3.
What would be the implications in terms of data security and performance?
Would it be worse to have a flat disk spacde without silos?
I plan to use some iSCSI volumes and I read one should keep 50% freespace at least for performance.
I have 32GB of ECC RAM with an 8core avoton cpu (similar board that is shipped with the FreeNAS appliance).
What options would you recomend?
Are there others that would work better?
If there is the need for more information about my setup please feel free to ask.
Meanwhile thanks in advance for your atention.
Miguel