Good day,
Some controllers do not allow to set a 4k block on a boot device.
With some installations of Ovirt in the configuration of ssd for boot OS and hdd (4k) for
data domain, engine is installed on ssd with a block size of 512e and then transferred to
hdd 4k. and if I wanted to leave the engine on ssd (in a separate partition which will
also have a size of 512e), I encountered an incompatibility error between block sizes 512
and 4k (example glusterfs or when the data domain was configured as posix compliant fs).
NFS domain passed.
As I understand it, the NFS uses 512e as well as the drivers of the guest machines, and a
VM created on a domain with a 4k block will still have 512e. As a result, we have a block
of size 512 in any case.
Does it make sense to use devices with a 4k block at the present time? Is there any
configuration to take advantage of 4K?
Thanks in advance.
Best regards.