wajahatahmadkhan
Dabbler
- Joined
- Feb 23, 2018
- Messages
- 17
So im planning to setup a new pool for my FREENAS Server
System
Intel(R) Xeon(R) CPU E31270 @ 3.40GHz
24GB ECC RAM
10GB Ethernet
20 x 4TB Drives
So i have currently setup a mirrored vdev of my 20 x 4TB drives but the cost of storage has become alot and cant be barred so shifting to RAIDZ for more usable space.
From my googling experience i have come to know that RAIDZ doesn't support expansion (yet) and secondly greater the amount of vdevs means greater the performance
So keeping these 2 points in mind i have 2 ways of setting up my RIADZ pool
Option 1 - RAIDZ2
2 Vdevs of 10 x 4TB drives each
- assumed con : - to increase space i mite need 10 more drives to add another vdev
Option 2 - RAIDZ1
4 vdevs of 5 drives each
: - in this i can expand storage with another vdev of 5 drives
Both options will have 4 parity drives so i guess reliability should be same
Please correct me if i have made any non technical assumption as i'm not an expert
Suggest which option i should go to for better reliability and performance
TIA
System
Intel(R) Xeon(R) CPU E31270 @ 3.40GHz
24GB ECC RAM
10GB Ethernet
20 x 4TB Drives
So i have currently setup a mirrored vdev of my 20 x 4TB drives but the cost of storage has become alot and cant be barred so shifting to RAIDZ for more usable space.
From my googling experience i have come to know that RAIDZ doesn't support expansion (yet) and secondly greater the amount of vdevs means greater the performance
So keeping these 2 points in mind i have 2 ways of setting up my RIADZ pool
Option 1 - RAIDZ2
2 Vdevs of 10 x 4TB drives each
- assumed con : - to increase space i mite need 10 more drives to add another vdev
Option 2 - RAIDZ1
4 vdevs of 5 drives each
: - in this i can expand storage with another vdev of 5 drives
Both options will have 4 parity drives so i guess reliability should be same
Please correct me if i have made any non technical assumption as i'm not an expert
Suggest which option i should go to for better reliability and performance
TIA