Créer,supprimer un filesystem

Créer un filesystem

Création d'un FS nommé /u10

• Se connecter root sur le serveur : ssh root@srvdaisy02

• Créer les LUNs sur K2 :

   $ ssh K2 'plescripts/san/add_and_export_lv.sh -export_to="srvdaisy02" -vg_name=asm01 -count=4'
   $ iscsiadm -m node --rescan
  

  Les disques peuvent être créer sur VBox, mais il faut stopper la VM.

  Le script virtualbox/add_disk.sh permet de le faire, ou bien utiliser l'interface graphique.

• Le script create_fs.sh se charge de créer le LV et le FS sur le ou les disques disponibles. L'option -netdev n'est pas utile si le disque est géré par VBox.

   [root@srvdaisy02 disk]# ./create_fs.sh -mount_point=/u10 -suffix_vglv=grid2 
   -type_fs=xfs -disks=4 -noatime -netdev
   # Search 4 disks unused :
   # Device found 4 : /dev/sdo /dev/sdp /dev/sdq /dev/sdr
  
   # Create fs xfs on devices /dev/sdo /dev/sdp /dev/sdq /dev/sdr : mount point /u10
  
   # add partition to /dev/sdo
   11h19> fdisk /dev/sdo n p 1
   Device does not contain a recognized partition table
   Building a new DOS disklabel with disk identifier 0x15c94bd9.
   11h19> pvcreate -y /dev/sdo1
     Physical volume "/dev/sdo1" successfully created.
  
   # add partition to /dev/sdp
   11h19> fdisk /dev/sdp n p 1
   Device does not contain a recognized partition table
   Building a new DOS disklabel with disk identifier 0xafccd9c0.
   11h19> pvcreate -y /dev/sdp1
     Physical volume "/dev/sdp1" successfully created.
  
   # add partition to /dev/sdq
   11h19> fdisk /dev/sdq n p 1
   Device does not contain a recognized partition table
   Building a new DOS disklabel with disk identifier 0x5b3e4075.
   11h19> pvcreate -y /dev/sdq1
     Physical volume "/dev/sdq1" successfully created.
  
   # add partition to /dev/sdr
   11h19> fdisk /dev/sdr n p 1
   Device does not contain a recognized partition table
   Building a new DOS disklabel with disk identifier 0x8c0eece2.
   11h19> pvcreate -y /dev/sdr1
     Physical volume "/dev/sdr1" successfully created.
  
   11h19> vgcreate vggrid2 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1
     Volume group "vggrid2" successfully created
  
   # Create linear FS
  
   11h19> lvcreate -y -l 100%FREE -n lvgrid2 vggrid2
     Logical volume "lvgrid2" created.
   11h19> mkfs -t xfs /dev/vggrid2/lvgrid2
   meta-data=/dev/vggrid2/lvgrid2   isize=256    agcount=4, agsize=1046528 blks
   		 =                       sectsz=512   attr=2, projid32bit=1
   		 =                       crc=0        finobt=0, sparse=0
   data     =                       bsize=4096   blocks=4186112, imaxpct=25
   		 =                       sunit=0      swidth=0 blks
   naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
   log      =internal log           bsize=4096   blocks=2560, version=2
   		 =                       sectsz=512   sunit=0 blks, lazy-count=1
   realtime =none                   extsz=4096   blocks=0, rtextents=0
   11h19> mkdir -p /u10
   11h19> echo "/dev/mapper/vggrid2-lvgrid2 /u10 xfs _netdev,noatime,defaults 0 0" >> /etc/fstab
   11h19> mount /u10
  

Supprimer un filesystem

• Le script plescripts/disk/drop_fs.sh prend en charge le démontage, la suppression du LV et le nettoyage des disques.

  Exemple : cd disk && ./drop_fs.sh -fs=/u10