I am using Sigar in SLES 12 64 bits, my kernel is 3.12.28-4-default When I run iostat I just only see the primary partiotion all the LVM's are not shown.
Here's my output
sigar> iostat
Filesystem Mounted on Reads Writes R-bytes W-bytes Queue Svctm
/dev/sda1 /boot 393 10 19M 22K 0.01 0.64
sigar> df
Filesystem Size Used Avail Use% Mounted on Type
rootfs 56G 7.3G 49G 14% / rootfs/none
sysfs 0 0 0 - /sys sysfs/none
proc 0 0 0 - /proc proc/none
devtmpfs 7.8G 4.0K 7.8G - /dev devtmpfs/none
securityfs 0 0 0 - /sys/kernel/security securityfs/none
tmpfs 7.8G 0 7.8G - /dev/shm tmpfs/none
devpts 0 0 0 - /dev/pts devpts/none
tmpfs 7.8G 9.8M 7.8G 1% /run tmpfs/none
tmpfs 7.8G 0 7.8G - /sys/fs/cgroup tmpfs/none
cgroup 0 0 0 - /sys/fs/cgroup/systemd cgroup/none
pstore 0 0 0 - /sys/fs/pstore pstore/none
cgroup 0 0 0 - /sys/fs/cgroup/cpuset cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/cpu,cpuacct cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/memory cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/devices cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/freezer cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/blkio cgroup/none
cgroup 0 0 0 - /sys/fs/cgroup/perf_event cgroup/none
--More-- (Page 1 of 3)
cgroup 0 0 0 - /sys/fs/cgroup/hugetlb cgroup/none
/dev/mapper/system-root 56G 7.3G 49G 14% / btrfs/none
systemd-1 0 0 0 - /proc/sys/fs/binfmt_misc autofs/none
mqueue 0 0 0 - /dev/mqueue mqueue/none
debugfs 0 0 0 - /sys/kernel/debug debugfs/none
hugetlbfs 0 0 0 - /dev/hugepages hugetlbfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /.snapshots btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/log btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/lib/mailman btrfs/none
/dev/mapper/cilos--search--core--vg-cilos--search 50G 145M 48G 1% /cilos btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/tmp btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/spool btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /home btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/opt btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/lib/named btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/crash btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /var/lib/pgsql btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /usr/local btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /tmp btrfs/none
--More-- (Page 2 of 3)
/dev/mapper/system-root 56G 7.3G 49G 14% /srv btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /opt btrfs/none
/dev/mapper/cilos--search--data--vg01-cilos--search--data--vg01 300G 18M 298G 1% /cilos/var/lib/cilos-search/data-01 btrfs/none
/dev/sda1 485M 62M 394M 14% /boot ext4/local
/dev/mapper/system-root 56G 7.3G 49G 14% /boot/grub2/x86_64-efi btrfs/none
/dev/mapper/system-root 56G 7.3G 49G 14% /boot/grub2/i386-pc btrfs/none