-bash-4.1$ iostat -xz

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          14.17    1.02    2.44    0.12    0.00   82.25

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await r_await w_await  svctm  %util
sda               0.29     6.91    3.84   25.77   148.96  1611.27    59.46     0.80   26.93    8.07   29.74   1.75   5.19
dm-0              0.00     0.00    1.60    8.44    53.91    67.46    12.09     0.32   32.10    5.82   37.08   2.15   2.16
dm-1              0.00     0.00    0.13    0.00     1.07     0.00     8.00     0.00    3.34    3.34    0.00   3.34   0.04
dm-2              0.00     0.00    0.43    1.96    17.38   159.08    73.84     0.02    7.55    1.91    8.80   2.86   0.68
dm-3              0.00     0.00    0.16    1.40     0.24    13.00     8.48     0.01    4.12    1.44    4.41   2.45   0.38
dm-4              0.00     0.00    1.54   19.69    74.22  1371.70    68.11     0.76   36.01   14.26   37.71   1.08   2.30

-bash-4.1$ cat /proc/meminfo
MemTotal:       24194488 kB
MemFree:          774144 kB
Buffers:           68688 kB
Cached:         16583464 kB
SwapCached:            0 kB
Active:         12591724 kB
Inactive:        8487392 kB
Active(anon):    4961880 kB
Inactive(anon):  1431372 kB
Active(file):    7629844 kB
Inactive(file):  7056020 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      24117244 kB
SwapFree:       24117244 kB
Dirty:              6176 kB
Writeback:             0 kB
AnonPages:       4425884 kB
Mapped:           249680 kB
Shmem:           1966288 kB
Slab:            2008124 kB
SReclaimable:    1900880 kB
SUnreclaim:       107244 kB
KernelStack:       16880 kB
PageTables:        31904 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    36214488 kB
Committed_AS:    8181024 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      353444 kB
VmallocChunk:   34345296548 kB
HardwareCorrupted:     0 kB
AnonHugePages:   2564096 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       11540 kB
DirectMap2M:     2066432 kB
DirectMap1G:    23068672 kB