mdconfig and the [no]async option
Josias L. Gonçalves
josiaslg at bsd.com.br
Tue May 21 14:54:25 UTC 2019
Hi.
I'm testing md devices with zfs and i see a slow performance on md0 and md1
(md1 by network).
Reading in man, i have the noasync option to up performance but the warning:
For vnode backed devices: avoid IO_SYNC for increased
performance but at the risk of deadlocking the entire
kernel.
So, can the operating system freeze if some write or read block fail ?.
Best Regards.
More information about the freebsd-stable
mailing list