Anyone using freebsd ZFS for large storage servers?
wojtek at wojtek.tensor.gdynia.pl
Fri Jun 1 16:17:43 UTC 2012
> On Fri, Jun 1, 2012 at 1:23 AM, Albert Shih <Albert.Shih at obspm.fr> wrote:
>> I've Dell R610 + 48 Go Ram, 2x 6 core + 4 * MD1200 (36*3T + 12*2T)
>> [root at filer ~]# zpool list
>> NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
>> filer 119T 35,4T 83,9T 29% 1.00x ONLINE -
>> [root at filer ~]#
>> Work very fine (I can't say I've long experience because the server is up
>> since just 4 months).
>> The ZFS is very good, easy to manage, very fast.
i dare not to agree about "very fast". very fast is relative term. how did
you configured your storage?
make 10 100GB files (so none fits in RAM) by
for x in 0 1 2 3 4 5 6 7 8 9;do ( dd if=/dev/zero of=testfile$x bs=1m
count=100k &) ;done
measure time needed for it to finish (all dd processes exist)
then install /usr/ports/benchmark/randomio and do some tests of random
reads on that files.
and final test - 10 randomio in parallel with 10 threads each, one per
then sum up results (IOPS) and divide by amount of disks you have.
then decide if is it fast or slow :)
>> They're two default IMHO :
>> Eat lot of Ram
can be controlled by settings in loader.conf.
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