How to Extend LVM Swap Partition

How to Extend LVM Swap 

1. Turn off swap 
   1.  swapoff /dev/mapper/vg_spacewalk-lv_swap  
2. Resize Swap LVM Partition 
   1. [root@spacewalk /]# lvresize -L 5G /dev/mapper/vg_spacewalk-lv_swap   Extending logical volume lv_swap to 5.00 GiB   Logical volume lv_swap successfully resized  
3. Make swap again 
   1. [root@spacewalk /]# mkswap /dev/mapper/vg_spacewalk-lv_swap mkswap: /dev/mapper/vg_spacewalk-lv_swap: warning: don't erase bootbits sectors         on whole disk. Use -f to force. Setting up swapspace version 1, size = 5242876 KiB no label, UUID=b5b26e00-dfb5-4767-bfac-985d125c8331  
4. Turn swap back on 
   1. [root@spacewalk /]# swapon -v /dev/vg_spacewalk/lv_swap swapon on /dev/vg_spacewalk/lv_swap swapon: /dev/mapper/vg_spacewalk-lv_swap: found swap signature: version 1, page-size 4, same byte order swapon: /dev/mapper/vg_spacewalk-lv_swap: pagesize=4096, swapsize=5368709120, devsize=5368709120  
5. Check swap size 
   1. [root@spacewalk /]# swapon -s Filename                                Type            Size    Used    Priority /dev/dm-1                               partition       5242872 0       -1  
   2. [root@spacewalk /]# free -m              total       used       free     shared    buffers     cached Mem:          1877       1775        101          0         25        285 -/+ buffers/cache:       1464        413 Swap:         5119          0       5119