Can I use different size HDD for FreeNAS?

Mixing disks of different sizes in a VDEV is not allowed. TrueNAS Community.

Can I have different size drives in my NAS?

Yes, absolutely Yes you can. If there is a traditional raid, all the bigger capacity hard drives are trimmed down to the smallest capacity. So if you have 2,4,6 and 8TB drives in a NAS, they will also be made into a 2TB x 4 drives volume.

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 you need for FreeNAS?

FreeNAS documentation recommends a minimum of 6GB of RAM for best performance with ZFS. We found 4GB worked just fine. A general rule of thumb is 1GB of RAM for every 1TB of storage. At least three SATA hard drives.

What is TrueNAS core?

TrueNAS CORE is one of the three versions of TrueNAS Open Storage software comprised of TrueNAS CORE, TrueNAS Enterprise, and TrueNAS SCALE. TrueNAS Open Storage will bind all TrueNAS versions into a single software image and brand. What was formerly FreeNAS is now named TrueNAS CORE.

Do hard drives have to be the same size for RAID?

In a RAID 1 configuration, the size of target disk must be greater or equal to the one of the source disk. Therefore the capacity of the array will be same as the one of the smallest size in the group. The only exception is a spanned volume.

Do hard drives need to match?

It’s best to use identical hard drives with the same amount of hard disk space and speed. Any new hard drives will include connector cables to attach to the motherboard and the power supply. You might need an adapter cable if existing power cables don’t match up with the ports on your hard drives.

How much RAM is needed for a NAS?

Depends what OS you’re using, the file system and if you’re running any apps on it. For FreeNAS using ZFS, you need 8GB minimum, but for a light, simple NAS, 2GB should be enough.

Is Unraid a hypervisor?

Unraid runs as a virtualization host, leveraging a hypervisor to partition resources to virtualized guests in a secure and isolated manner. VMs can be assigned a wider array of resources than Docker containers but still offer isolated access.

How to create different size drives in FreeNAS?

Use the cli to create a 3TB slice from the 8TB drive via gpart then manually create the pool using the 2x3TB drives and a 3TB slice. Lastly, create a 5TB pool with the remainder of the 8TB drive. stripe 2x3TB together then mirror the stripped drives to a 6TB slice from the 8TB drive., then create a 2TB pool with the remainder of the 8TB drive.

How to create a 5TB pool in FreeNAS?

Create a pool with the 3 drives in the UI. you will lose out on 5TB from the 8TB drive. Use the cli to create a 3TB slice from the 8TB drive via gpart then manually create the pool using the 2x3TB drives and a 3TB slice. Lastly, create a 5TB pool with the remainder of the 8TB drive.

Can a 3TB drive be used as a vdev in FreeNAS?

If you create a pool with two vdevs, you can have one vdev of the 3TB drives and another of the 8TB drive. In this case, it’ll add the space of the two vdevs together. Be aware that with this setup, the whole pool will be gone if the 8 TB drive fails.

Can you use ZFS and FreeNAS with two vdevs?

If you’re looking to get all of that drive space to use, then ZFS and FreeNAS probably isn’t for you. If you create a pool with two vdevs, you can have one vdev of the 3TB drives and another of the 8TB drive. In this case, it’ll add the space of the two vdevs together.