root@tg1:~# gluster volume create gv30 disperse 5 tg{1,2,3,4,5}:/data/brick1/gv30 tg{1,2,3,4,5}:/data/brick2/gv30
volume create: gv30: success: please start the volume to access data

root@tg1:~# gluster volume set gv30 features.shard on
volume set: success

root@tg1:~# gluster volume set gv30 features.shard-block-size 512MB
volume set: success

root@tg1:~# gluster volume start gv30
volume start: gv30: success

root@tg1:~# gluster volume info

Volume Name: gv30
Type: Distributed-Disperse
Volume ID: e14cf92b-6f2d-420d-97ac-f725959d0398
Status: Started
Snapshot Count: 0
Number of Bricks: 2 x (4 + 1) = 10
Transport-type: tcp
Bricks:
Brick1: tg1:/data/brick1/gv30
Brick2: tg2:/data/brick1/gv30
Brick3: tg3:/data/brick1/gv30
Brick4: tg4:/data/brick1/gv30
Brick5: tg5:/data/brick1/gv30
Brick6: tg1:/data/brick2/gv30
Brick7: tg2:/data/brick2/gv30
Brick8: tg3:/data/brick2/gv30
Brick9: tg4:/data/brick2/gv30
Brick10: tg5:/data/brick2/gv30
Options Reconfigured:
features.shard-block-size: 512MB
features.shard: on
storage.fips-mode-rchecksum: on
transport.address-family: inet
nfs.disable: on

root@tg1:~# mount -t glusterfs tg1:/gv30 /mnt

root@tg1:~# cd /mnt

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  399M  7.6G   5% /mnt

root@tg1:/mnt# dd if=/dev/zero of=file bs=1M count=2048
2048+0 records in
2048+0 records out
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 36.3422 s, 59.1 MB/s

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  3.9G  4.1G  49% /mnt

(about 5 minutes later)

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  2.4G  5.6G  31% /mnt

root@tg1:/mnt# rm file 

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  399M  7.6G   5% /mnt

root@tg1:/mnt# dd if=/dev/zero of=file bs=1M count=6144
6144+0 records in
6144+0 records out
6442450944 bytes (6.4 GB, 6.0 GiB) copied, 96.3252 s, 66.9 MB/s

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  7.0G  1.1G  88% /mnt

(about 5 minutes later)

root@tg1:/mnt# df -h
Filesystem      Size  Used Avail Use% Mounted on
tg1:/gv30       8.0G  6.7G  1.3G  85% /mnt