Any #ZFS folks want to offer me an opinion on the following? I have 2 ZFS pool of raidz2 with 7 2TB SAS drives each (about 11.5T). I want to add a LOG drive. I have a single SAS SSD that's 300G. When I suggested using a 1TB LOG drive earlier, someone said that was way too much. (which is why I picked up a used 300G SSD)
My question is whether it makes sense (is possible) to partition that drive into 2 partitions and have one pool use 1 partition as a log drive (e.g., 150G) and the other pool use the other partition as a log drive on the same physical device.
Is this going to be worse because it's just too much IO on one device? Is it reasonable? Any other ideas?