[OmniOS-discuss] 4k sectors on a kvm guest

[Natxo Asenjo]

hi,

before running a real hardware omnios host I am learning how to use it in a
kvm vm running on centos.

The disk performance is quite poor, this is partly due to omnios not using
virtio hard drives but ide drives. But I think the root zpool is not
properly aligned either:

root at testomnios:~# zdb -C rpool | grep ashift
                ashift: 9

this should be 12 to be aligned to 4k sectors I understand. Is there a way
to change this?

TIA,
--
Groeten,
natxo
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