This will almost certainly be due to slow TRIM support on the device.
Try setting the sysctl vfs.zfs.vdev.trim_on_init to 0 before adding the
devices.
On 18/07/2015 05:35, dy...@techtangents.com wrote:
Hi,
I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running
FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think.
Apologies if this is the wrong mailing list, or if this has been fixed
in STABLE since the beta.
Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and
357GB for l2arc. Adding the slog partition to the pool takes about 2
minutes - machine seems hung during that time. Ping works, but I can't
open another ssh session.
Adding the l2arc doesn't seem to complete - it's been going 10 minutes
now and nothing. Ping works, but I can't log in to the local console
or another ssh session.
I'm adding the partitions using their gpt names. i.e.
zpool add zroot log gpt/slog
zpool add zroot cache gpt/l2arc
The system BIOS is up-to-date. The OS was a fresh 10.1 install, then
freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms.
Root is on zfs.
Device was tested to be working on Windows 8.1 on a Dell T1700
workstation.
Any ideas?
Cheers,
Dylan Just
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