#
# swap add 방법
#
 
Sol 2.x에서 swap add 방법 
========================= 
 
먼저 file system check를 함 
# df -k | grep swap 
filesystem      kbyte   used    avail   capacity    Mounted on 
swap           91512   12      91500   0%         /tmp 
 
# swap -l 
swapfile        dev     swaplo  blocks  free 
/dev/dsk/c0t3d0s1       32,17        8  163960  163960 
 
# swap -s 
total:5820kbytes allocated + 2444k reserved=8264k used, 93580k available 
 
# cat /etc/vfstab | grep swap 
swap   -       /       tmp     tmpfs   -       yes    - 
 
# mkfile 10m /usr/myswap (10Mbyte의 swap size file을 생성시켜줌) 
 
# ls -l /usr/myswap 
-rw------T    1       root    other    10485760        May 15 19:04 /usr/myswap 
 
# swap -a /usr/myswap (OS에 swap file을 적용시켜줌) 
 
# vi /etc/vfstab 
/dev/dsk/c0t3d0s1   -     -    swap   -   no  -     --> 실제적으로 잡아준 swap 영역 
/usr/myswap         -     -    swap   -   no  -     --> 영역을 잡아 swap을 사용 
 
# swap -s 
total:5828kbytes allocated + 2456k reserved = 8284k used, 103792k available 
 
# swap -l 
swapfile        dev     swaplo  blocks  free 
/dev/dsk/c0t3d0s1        32,17   8       163960  163960 
/usr/myswap                    8        20472   20472 
 
# swap -d /usr/myswap (swap add한 file을 삭제) 
 
 
# swap -s     <---- swap check 
total:5832k bytes allocated + 2456k reserved = 8288k used, 103788k available 
( allocated : 현재 사용, reserved : kernel이 잡아 놓음, available : 사용할 수 있는 용량 ) 
 
# swap -l 
swapfile        dev     swaplo  blocks  free 
/dev/dsk/c0t3d0s1        32,17   8       163960  163960 
/usr/myswap                    8        20472   20472 
 
 
명령(Syntax) 설명 
================= 
/usr/sbin/swap - ( a d l s ) swapname 
         a  :   adds the specified swap area 
         d  :   delete 
         l  :   list (display swap space) 
         s  :   displays information about total swap space 
         swapname  :  specifies the block special device or a swap file