3 ms·
Drive managed SMR is borderline. Host managed is stupid and only worth the effort if your a hyperscaler with a particular workload. A workload that happens to l
by StillBored 7y ago
Drive managed SMR is borderline. Host managed is stupid and only worth the effort if your a hyperscaler with a particular workload. A workload that happens to look a lot like old school tape workloads, which is probably what they should have sold SMR as.. Hard drives that look like tapes.
Which is why beyond some basic hinting its not worth putting in mainstream filesystems.
- kijiki 7y ago> Hard drives that look like tapes. Tapes don't have fast (by spinning rust standards) random reads. Hinting in ext4 or NTFS is of course a waste of time, but CoW filesystems like ZFS or btrfs are in a much better position to handle host-managed SMR. And a generic "SMRTL" layer that utilizes (hopefully mirrored) SSDs as a write staging area could do massively better than the dumb host-managed SMR on these drives.