Poweredbylinux The first thing you generally want to do when you have any new Storage system like SSD, Disk arrays or a Cluster Ceph, is benching. You will want to know how can read and write throughput. FIO is able to do that for you, here is an example:

[global]
ioengine=libaio
invalidate=1
ramp_time=5

direct=1
size=5G

runtime=300
time_based
directory=/home

[seq-read]
rw=read
bs=64K
stonewall

[rand-read]
rw=randread
bs=4K
stonewall

[seq-write]
rw=write
bs=64K
stonewall

[rand-write]
rw=randwrite
bs=4K
stonewall

You then will have a good output of everything you need to know. More than that you can plot it:

fio_graph

You also can look at the nice eNovance blog post on it.