Will be interesting to play with. I used lvm cache to put ZFS on top of local NVMe for write-back caching of iSCSI targets, as ZFS has good built-in read cachi

Will be interesting to play with. I used lvm cache to put ZFS on top of local NVMe for write-back caching of iSCSI targets, as ZFS has good built-in read caching. Worked pretty well in the limited tests I did, but it's not magic. Main reason I didn't pursue is that it felt a bit like a house of cards. Though on the positive side, one could always mount the underlying storage, ie partitions serving the iSCSI targets, as a local pool on another machine.