02 фев2018

Extendet/resize linux part Disk

Written by Super User. Posted in Articles Unix 

--расширение ВолюмГруппы
перечиывает контроллер 
echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host2/scan
echo "- - -" > /sys/class/scsi_host/host3/scan
fdisk -l -- show all disk
pvscan --show added disk
--create logical disk on disk
 pvcreate /dev/sd{disk}
 pvcreate /dev/sd{disk}

-resize volume groupe
vgextend vg_data /dev/sd{disk}
vgextend vg_data /dev/sd{disk}
-reize LV groupe
 lvextend -l +100%FREE /dev/vg_data/LV_DATA /dev/sd{disk}
vgdisplay
--rerede VolumeGroupe
resize2fs  /dev/vg_data/LV_DATA

--for root resize xfs
xfs_growfs /mount/point

Resize PVS VMs
--resize Vm disk
--rescan OS disk
                      echo 1>/sys/class/block/sdb/device/rescan
--pvresize /dev/sdb
--can see free space
              [root@centOS-test ~]# pvs
                            PV                 VG                  Fmt           Attr   PSize      PFree
                          /dev/sda2        centos           lvm2           a--    <15.00g   0
                          /dev/sdb          VG_DATA     lvm2           a--    <10.00g   8.00g
--LVM resize
lvextend -l +100%FREE /dev/mapper/VG_DATA-LV_DATA

--File system table resize
resize2fs /dev/VG_DATA/LV_DATA

REDHAT extend:

lsblk
fdisk -l
pvs
vgdisplay
lvs
pvcreate  /dev/sdc
vgcreate VG-OPT /dev/sdc
lvcreate  -l +90%FREE -n LV-OPT VG-OPT
mkfs.ext4 /dev/mapper/VG--OPT-LV--OPT
mount /dev/mapper/VG--OPT-LV--OPT /opt
pvs
lvs
df -H
lsblk
echo "/dev/mapper/VG--OPT-LV--OPT /opt   ext4 defaults 0 0" >> /etc/fstab 

 

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