Patrick M. Hausen wrote on 11/17/2015 09:08:
Hi, all,
Am 16.11.2015 um 22:19 schrieb Freddie Cash <fjwc...@gmail.com>:
You label the disks as they are added to the system the first time. That
way, you always know where each disk is located, and you only deal with the
labels.
we do the same for obvious reasons. But I always wonder about the possible
downsides, because ZFS documentation explicitly states:
ZFS operates on raw devices, so it is possible to create a storage pool
comprised of logical
volumes, either software or hardware. This configuration is not
recommended, as ZFS works
best when it uses raw physical devices. Using logical volumes might
sacrifice performance,
reliability, or both, and should be avoided.
(from http://docs.oracle.com/cd/E19253-01/819-5461/gbcik/index.html)
Can anyone shed some lght on why not using raw devices might sacrifice
performance or reliability? Or is this just outdated folklore?
It was on Solaris but not on FreeBSD. If you were using partitions on
Solaris the drive cache was disabled (or something like that, I am not
100% sure)
Miroslav Lachman
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