1. SSH auto login

   sudo su
   Server : ssh node_name  (known_host)
   Client: ssh node_name
   

Allnode :ssh-keygen -r rsa

cd .ssh
cat id_rsa.pub >> authorized_keys
cat /tftboot/nodes/192.../root/.ssh/id_rsa.pub >> authorized_keys

cp authorized_keys known_hosts /tftpboot/nodes/192.../root/.ssh

2. Config Nodes and Disks

   vim gpfs.nodes
   「gpfs00.nchc.org.tw:quorum-manager
      gpfs01.nchc.org.tw:quorum-manager
      gpfs02.nchc.org.tw:quorum-manager」
   
   vim gpfs.disks
   「/dev/sdb:gpfs01.nchc.org.tw::dataAndMetadata::
      /dev/sdb:gpfs02.nchc.org.tw::dataAndMetadata::
      /dev/sdb:gpfs03.nchc.org.tw::dataAndMetadata::」
   

3. Create Cluster

   mmdelnode -f
   mmcrcluster -n gpfs.nodes -p gpfs01.nchc.org.tw -s gpfs02.nchc.org.tw  -r `which ssh` -R `which scp`
   「-p: 主NSD \Server
      -s: 備用 NSD Server
      -C: Cluster name
      -U: Domain name」
   
   mmlscluster
   mmlsnode -a
   

4. Perpare Disks as NSD

   cp gpfs.dsiks gpfs.disks.orig
   mmcrnsd -F gpfs.disks
   (mcrnsd -F gpfs.disks -v yes)
   
   mmlsnsd
   

5. Start GPFS daemon

   mmstartup -a
   mmgetstate -a
   tsstatus
   mmlsmod | grep mm
   ps -aux | grep mm
   

6. Create FS

   mmcrfs /home/gpfs gpfs0 -F gpfs.disks
   (mmcrfs /home/gpfs gpfs0 -F gpfs.disks -A yes)
   (mmcrfs /home/gpfs gpfs0 -F gpfs.disks -B 256K)
   (mmcrfs /home/gpfs gpfs0 -F gpfs.disks -B 1024K -m 1 -M 2 -r 1 -R 2)
   (mmcrfs /home/gpfs gpfs0 -F gpfs.disks -A yes -v no)
   
   (/home/gpfs: mount point
    gpfs0: 系統文件名 /dev/gpfs0
   -A: auto mount
    -B: block
    -n: 掛載fs的node數
   )
   
   mmlsdisk gpfs0
   

7. Mount FS

   法一：mmcrfs /home/gpfs gpfs0 -F gpfs.disks -A yes
   法二：mmmount /home/gpfs -a
   法三：vim /etc/fstab
   「/dev/gpfs0    /home/gpfs    gpfs    rw,mtime,atime,dev=/dev/gpfs0,autostart 0 0」
   

8. Other

   mmlsconfig
   
   mmchconfig autoload=yes
   mmchconfig singleNodeQuorum=no
   
   增加node
   mmaddnode -N fs04:client
   
   停掉node
   mmshutdown -a
   mmshutdown -N node
   
   rm -fr /var/mmfs....
   or
   mmdelnode -a