2014-07-31

Example lvm in LINUX

==This document is short note for lvm in LINUX==
[root@rhel64 /]#fdisk -l
[root@rhel64 /]#fdisk /dev/sdb1
[root@rhel64 /]#fdisk /dev/sdc1
[root@rhel64 /]#vgcreate vg1 /dev/sdb1 /dev/sdc1
[root@rhel64 /]#vgdisplay vg1
[root@rhel64 /]#lvcreate -L 14.98G -n testlv1 vg1
[root@rhel64 /]#mkfs.ext4 /dev/vg1/testlv1
[root@rhel64 /]#mount /dev/vg1/testlv1  /testlv1
===============






=====  online extend =====
[root@rhel64 /]#echo "- - -" > /sys/class/scsi_host/host3/scan
[root@rhel64 /]#fdisk /dev/sdd1
[root@rhel64 /]#vgextend vg1 /dev/sdd1
[root@rhel64 /]#lvextend -L 19G /dev/vg1/testlv1 
or
[root@rhel64 /]#lvextend -L +5G /dev/vg1/testlv1

[root@rhel64 /]#resize2fs /dev/vg1/testlv1


2014-07-03

How check any clients are connected to NFS server

- Can use  command netstat |grep nfsd