On Wed, 17 Feb 2021 09:45:12 +0100 pg@xxxxxxxxxxxxxxxxxxxxxx (Peter Grandi) wrote: > The main point of "enterprise" flash SSD models is (as the > original poster wrote) the ability to enable write-back (thus > much, much higher committed write rates), if they have > persistent buffering. I read the OP as they meant enabling the write-back mode of LVM cache, where loss of the SSD may lead to a data loss for the entire array, and justifying that simply by the SSD being a reliable datacenter one. My objection was to that, but perhaps indeed I understood that part wrong. -- With respect, Roman