I have the following drives:Seagate Barracuda ST3200054ASWDC WD20EADS-00S2B0Samsung HD204UIAs far as I understand, the first are ordinary 512 drives while the last is 4096 (Advanced format). Together with a new 2TB drive, I want to create a 6TB RAIDz1 with ZFS in FreeNAS.The new drive must most likely be also Advanced format because the old 512 are becoming rare/expensive.So I will effectively have two 512-byte-block and two 4096-byte-block drives. What special things must I take care in order to not decrease performance?When I chose Force 4096 bytes sector size in the volume manager, will I make sure that I will get the same performance if all block sizes were equal?
Mixing 4k/512 drives with ZFS (FreeNAS)
software raid;zfs;block device
there's no performance penalty in aligning a 512 drive on 4096 boundaries. since 4096 is a multiple of 512, the 512 drives will also be aligned on 512 boundaries.