Can you use different size drives in ZFS?
Yes this is possible. The only requirement is that the mirrored pairs within the pool are the same size. ZFS does prefer to use the raw drive so ideally this means drives of the same size.
Can I use different size hard drives in FreeNas?
You can combine differing size vdev’s together in a single pool. You only lose the available space on a drive when you combine different sized drives in the same vdev.
Do VDEVs have to be the same size?
All disks in a pool should be of the same size (outside log and cache devices) and all striped vdevs should have the same organization. Yes and Yes. You can add multiple VDEVs to a pool, they need not be similar. You can add multiple pools to a system, each consisting of whatever VDEVs.
How many drives do I need for TrueNAS?
Using 2 drives would be ideal, and in your case you could setup a mirror, which is very easy in TrueNAS. It goes without saying, that having an SSD for the TrueNAS install is the norm, ideally 2 that are mirrored (an option during the install process).
Can you mix drives in Freenas?
danb35 said: No, there’s no problem. As I understand it, vdev performance will be limited by the slowest device in the vdev, though.
Can you add Vdevs to a pool?
You can add more vdevs to a zpool , and you can attach more disks to a single or mirror vdev . For example, you might add a single disk to a six-disk RAID6 array, thereby turning it into a seven-disk RAID6 array.
How many drives can FreeNAS support?
You should have at least 8 GB of RAM for basic TrueNAS operations with up to eight drives. Other use cases each have distinct RAM requirements: Add 1GB for each drive added after eight to benefit most use cases. Add extra RAM (in general) if there are more clients connecting to the TrueNAS system.
Is FreeNAS a RAID?
FreeNAS uses ZFS a software “RAID”. You don’t need a controller for that and you can use your motherboard sata ports to build the volumes. Using the hardware controller with ZFS will create a conflicts, unless it’s in IT mode.
Can a 2TB disk be used as a ZFS partition?
“The devices can be individual slices on a preformatted disk, or they can be entire disks that ZFS formats as a single large slice.” So yes, you could create two 1-TB partitions on those 2TB drives, use them for RAID-Z vdev and the remaining space for non-redundant storage.
What kind of RAID card do I need for ZFS?
ZFS works best with a HBA like an LSI 9211-8i or an IBM m1015 cross-flashed to use the 9211-8i firmware, not a full blow “hardware” RAID card. I’ve got quite the set of different sized drives, and i’m trying to get the most storage space out of it with redundancy.
How to create RAID using different disk sizes?
If you want to create a raid with zfs using different disk sizes you need to use “zpool create (name of your pool) raidz1 -f sdb sdc sdd” the -f arqument force zfs to use different sizes example 500gb 1tb 250gb hd But it works with the one from github zfs+spl 0.6.5.x:
How big of a drive do I need for ZFS beginner?
ZFS Beginner Setup with Different Size Drives. 1 1x 500GB ‘Hybrid’ Drive. 2 1x 1TB Drive. 3 1x 3TB Drive. 4 1x 4TB Drive (will be added to the pool later, currently holding all the data from the the drives listed above)