Can ZFS use different sized drives?
1: there is no problem changing anything. The pool should be importable regardless of the CPU, mainboard or anything similar. 2: ZFS works best with devices of the same size. Moreover, as you want redundancy, devices larger than the smallest one would have their extra size wasted.
Do ZFS drives need to be the same size?
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.
Do all drives in a RAID have to be the same size?
In RAID 10, do all drives need to be the same specification in terms of size, speed, latency, etc? The only absolute requirement for matching drive specs in a RAID 10 array is that the drives must be of the same architecture, e.g., all SAS or SATA.
Can Vdevs be different sizes?
Yes, you could. That would give you 15 + 6 TB = 21 TB, but it would be slower than an equal configuration. You can upgrade each disk of each vdev separately – the whole vdev always has the size of the smallest disk in it.
Can you 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.
What is ZFS RAIDZ2?
ZFS’s equivalent is RAIDZ2. It is a fairly safe RAID level because it has the ability to withstand two drive failures and still rebuild, meaning if one fails you can still withstand another drive failure before or while rebuilding without losing your pool.
Can RAID 6 use different size drives?
Honorable. It can be done, however the raid size is restricted to the smallest drive in the array. It’s generally frowned upon to use different drive types, let alone sizes for RAID, but it can be done if you don’t mind sacrificing the extra space on your larger drive to do it.
Can RAID 5 have different size drives?
Yes, in a RAID5 array the smallest physical volume (disk or partition) will define the size of the array, so any extra space on larger volumes in the array is not used. You should not see any issues with drives of different speeds other than the fact the the slower drive(s) will reduce average performance.
Can you use different size drives in Freenas?
How does RAID z1 work?
RAIDZ (sometimes called RAIDZ1 pointing to a single parity) is most similar to a traditional RAID5 and requires minimum of 2 disks. Like in a regular RAID5, every “row” along with the data blocks stores a parity function calculated over the data blocks, which allows a system to survive a single disk failure.
Which is better FreeNAS or UnRAID?
Both FreeNAS and UnRAID are worthy solutions for creating your own file server. Our take is that FreeNAS is the better solution for those seeking traditional RAID with a tried and true volume manager/file system, while UnRAID is better if you’re seeking maximum capacity for non-critical data sets.
What is ZFS in FreeNAS?
FreeNAS users often tell us about their love of TrueNAS, here’s an overview of why ZFS makes them both awesome. ZFS is an enterprise-ready open source file system, RAID controller, and volume manager with unprecedented flexibility and an uncompromising commitment to data integrity.