I've got a RAID-Z1 pool made of three 1 TB Samsung drives (512 byte sectors) on my home server. I'm running around 90% full now and needing to add more space. I have a total of five internal SATA ports and one external eSATA. My plan is to bring two 2 TB drives into the mix, likely as a mirrored pair.
Most of the 2 TB drives I'm finding that are somewhat affordable are 4K "advanced format" drives.
Are there any issues with having one set of vdevs (the existing RAID-Z1 group) and another set of vdevs (the new mirror group) with different physical sector sizes?
I currently don't back up the bulk of the pool because it's not terribly important. I'm considering adding a 4 TB drive in an external case to back things up and give me some flexibility in shuffling disks around. Obviously that's not a great backup (single cheap drive), but I was planning to use ZFS there as well so that I at least have checksumming.
If I go that route and I'm left with five ports, two 2 TB drives and three 1 TB drives, what might be a good option for making efficient use of all the drives?
Most of the 2 TB drives I'm finding that are somewhat affordable are 4K "advanced format" drives.
Are there any issues with having one set of vdevs (the existing RAID-Z1 group) and another set of vdevs (the new mirror group) with different physical sector sizes?
I currently don't back up the bulk of the pool because it's not terribly important. I'm considering adding a 4 TB drive in an external case to back things up and give me some flexibility in shuffling disks around. Obviously that's not a great backup (single cheap drive), but I was planning to use ZFS there as well so that I at least have checksumming.
If I go that route and I'm left with five ports, two 2 TB drives and three 1 TB drives, what might be a good option for making efficient use of all the drives?