[Bug 225791] ena driver causing kernel panics on AWS EC2

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225791

--- Comment #11 from Richard Paul <richard at primarysite.net> ---
Hi Colin,

I read the article about these drives earlier this year thanks, (p.s. is this
more usable now in 11.2 or are we still waiting on an ability to hot remove
drives), specifically on this test instance, no, I haven't we did do this on
the original C5 server when we wanted to replace an IO2 drive which was costing
us a fortune, and had to schedule some down time to detach it.

But in terms of the instance that I'm testing no, I didn't mess about with the
volumes.

However, thinking about this, have you tried testing with a larger number of
EBS volumes attached? And tested with load going to most of them at the same
time?
We have, UFS root vol, 2x mirrored ZFS for DB, 1x ZFS for logs, 1x ZFS local
backups vol.

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