3 Apr
2023
3 Apr
'23
7:44 a.m.
Why was it done that way? I do not understand the reason why distributing
the IOPS accross different disks, when the measurement we have is for one disk alone. This means with default parameters we will always be far from reaching OSD limit right?
It's not on different disks. We distribute the IOPS across shards on a given OSD/disk. This is an internal implementation detail. This means in your case, 450 IOPS is distributed across 5 shards on the same OSD/disk. You can think of it as 5 threads being allocated a share of the total IOPS on a given OSD. -Sridhar