Create Gluster File system with 6 stripes and 2 replicas across 12 nodes

gistfile1.txt

On every node in gluster. Turn /scratch disk into brick.


b01b01:~ # df -h /scratch
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda5       243G  6.8G  224G   3% /scratch


umount /scratch
mkfs.xfs -f -i size=512 /dev/sda5
mkdir -p /glusterfs/brick1

/etc/fstab
#/dev/sda5       /scratch        ext3    defaults 0 0
/dev/sda5       /glusterfs/brick1       xfs     defaults 0 0

mount /glusterfs/brick1



On any one node in the cluster create and start the volume

gluster volume create gscratch stripe 6 replica 2 transport tcp  \
  b01a01-ib:/glusterfs/brick1/vol_gscratch  \
  b01a02-ib:/glusterfs/brick1/vol_gscratch  \
  b01a03-ib:/glusterfs/brick1/vol_gscratch  \
  b01a04-ib:/glusterfs/brick1/vol_gscratch  \
  b01a05-ib:/glusterfs/brick1/vol_gscratch  \
  b01a06-ib:/glusterfs/brick1/vol_gscratch  \
  b01a07-ib:/glusterfs/brick1/vol_gscratch  \
  b01a08-ib:/glusterfs/brick1/vol_gscratch  \
  b01a09-ib:/glusterfs/brick1/vol_gscratch  \
  b01a10-ib:/glusterfs/brick1/vol_gscratch  \
  b01a11-ib:/glusterfs/brick1/vol_gscratch  \
  b01a12-ib:/glusterfs/brick1/vol_gscratch

gluster> volume list
gscratch

gluster> volume start gscratch

gluster> volume status



On each node in the gluster, mount the new now larger and distributed /scratch volume

/etc/fstab
localhost:/gscratch /scratch glusterfs defaults,_netdev 0 3

mount /scratch
chmod 1777 /scratch


wow. It's bigger.

b01a01:~ # df -h /scratch/
Filesystem           Size  Used Avail Use% Mounted on
localhost:/gscratch  1.5T  3.5G  1.5T   1% /scratch