Do VDEVs have to be the same size?
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.
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.
Can you use different size hard drives in a NAS?
If you dont want any redundancy (and the os allows it) you could put disks of different sizes in and concatenate the storage. If you want to use mirror the disks (raid 1) then you can probably use different size disks but you will only get the total capacity of the smallest disk.
How do I expand my Raidz?
There’s another way to expand on a raidz:
- Pull out a drive and insert a newer, larger capacity drive.
- Replace the “failed” drive with this new drive, and resilver it.
- Repeat until you have replaced all drives.
- Turn on autoexpand so the pool will take up the new capacity.
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 file system is ZFS?
ZFS is a local file system and logical volume manager created by Sun Microsystems Inc. to direct and control the placement, storage and retrieval of data in enterprise-class computing systems. Deduplication – a process that eliminates redundant copies of data and reduces storage overhead.
Is UnRAID better than FreeNAS?
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 mirror?
ZFS is an advanced file system that is capable of managing data that spans across devices. ZFS uses virtual storage pools, called zpools. A zpool can contain numerous directories and can provide redundancy for your data. I want to show you how to set up a ZFS mirror (RAID1) pool using two external disks.
Can RAID 5 drives be different sizes?
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 two different brands of hard drives?
Absolutely yes,I also have two different brand HDD on my PC.
Is Unraid worth the price?
Unraid is a better choice if you’re willing to spend money in exchange for easier setup. If you’re willing to handle more of the setup yourself, FreeNAS can save you some cash. Just keep in mind that if you’re using more modest hardware, Unraid is likely to be a much better option.
How many disks should be in a RaidZ group?
Either you divide your data pool into 2x 4-disks raidz or you go for 1x 8-disks raidz2 Here are some best practices (details here) regarding the building of groups: The recommended number of disks per group is between 3 and 9. If you have more disks, use multiple groups (vdev).
How many disks should I have in a group?
Here are some best practices (details here) regarding the building of groups: The recommended number of disks per group is between 3 and 9. If you have more disks, use multiple groups (vdev). If I may add, keep in mind as well that your system will eventually evolve.
What’s the default size of a ZFS disk?
You may as well consider forcing zfs to use 4k sectors (ashift= 12) even if in your case there is good chance that 512b sectors (ashift= 9) would be the default setting. Again, for later upgrade as you really, really don’t want to mix ashift in a pool.