Yes, but you can’t directly compare SAN-style storage with a local NVMe. But I agree that it’s too expensive, but not nearly as insane as the bandwidth pricing. If you go to a vendor and ask for a petabyte of storage, and it needs to be fully redundant, and you need the ability to take PIT-consistent multi-volume snapshots, be ready to pay up. And this is what’s being offered here.
replyAnd yes, IO typically happens in 4kb blocks, so you need a decent amount of IOPS to get the full bandwidth.
Sure, but a petabyte of block storage with redundancy and PIT backups is a poor abstraction to build on, in large part because it’s not a thing that can be built without either paying an wild amount of money or taking a huge performance hit or both. If you do your PIT recovery at a higher layer, you have to work a bit harder but you get far better cost, perf and recovery.
replyThat latter part is a big deal, too. If I buy 1PB of block storage, I’m decently likely to be running a fancy journaled or WAL-ed or rollback-logged thing on top, and that thing might be completely unable to read from a read only snapshot. So actually reading from a PIT snapshot is a pain regardless of what I paid for it. Even using EBS or similar snapshots is far from being an amazing experience.