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swapon

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swapon, swapoff - ¥Ç¥Ð¥¤¥¹¤ä¥Õ¥¡¥¤¥ë¤Ø¤Î¥Ú¡¼¥¸¥ó¥°¡¢¥¹¥ï¥Ã¥Ô¥ó¥°¤òÍ­¸ú / ̵¸ú¤Ë¤¹¤ë

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/sbin/swapon [-h -V]
/sbin/swapon -a [-v] [-e]
/sbin/swapon [-v] [-p priority] specialfile ...
/sbin/swapon [-s]
/sbin/swapoff [-h -V]
/sbin/swapoff -a
/sbin/swapoff specialfile ...

ÀâÌÀ

swapon ¤Ï¡¢¥Ú¡¼¥¸¥ó¥° (paging) ¤ä¥¹¥ï¥Ã¥Ô¥ó¥° (swapping) ¤ò¹Ô¤¦¥Ç¥Ð¥¤¥¹¤ò »ØÄꤹ¤ë¤¿¤á¤ËÍѤ¤¤é¤ì¤ë¡£

»ÈÍѤµ¤ì¤ë¥Ç¥Ð¥¤¥¹¤Þ¤¿¤Ï¥Õ¥¡¥¤¥ë¤Ï¡¢ specialfile °ú¤­¿ô¤Ç»ØÄꤵ¤ì¤ë¡£ -L label ¤Þ¤¿¤Ï -U uuid ¤È¤¤¤¦·Á¼°¤Ç¡¢¥é¥Ù¥ë¤Þ¤¿¤Ï uuid ¤Ç¥Ç¥Ð¥¤¥¹¤ò»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£

swapon ¤Î¸Æ¤Ó½Ð¤·¤Ï¡¢Ä̾亮¥¹¥Æ¥à¤ò¥Þ¥ë¥Á¥æ¡¼¥¶ÍѤ˽é´ü²½¤¹¤ë¥Õ¥¡¥¤¥ë /etc/rc ¤Ç¹Ô¤ï¤ì¤ë¡£ÉáÄ̤Ϥ³¤³¤Ç¤¹¤Ù¤Æ¤Î¥¹¥ï¥Ã¥×¥Ç¥Ð¥¤¥¹¤òÍ­¸ú¤Ë¤·¡¢¥Ú¡¼¥¸¥ó¥° ¤ä¥¹¥ï¥Ã¥Ô¥ó¥°¤¬Ê£¿ô¤Î¥Ç¥Ð¥¤¥¹¤ä¥Õ¥¡¥¤¥ë¤Ë¤Þ¤¿¤¬¤Ã¤Æ¥¤¥ó¥¿¡¼¥ê¡¼¥Ö (interleave) Æ°ºî¤Ç¤­¤ë¤è¤¦¤Ë¤¹¤ë¡£

Ä̾ï¤Ï swapon -a ¤Î½ñ¼°¤Ç¼Â¹Ô¤µ¤ì¤ë¤³¤È¤¬Â¿¤¤¡£

-a

/etc/fstab Ãæ¤Ç ``swap'' ¥Þ¡¼¥¯¤¬ÉÕ¤¤¤Æ¤¤¤ë¥¹¥ï¥Ã¥×¥Ç¥Ð¥¤¥¹¤ò¤¹¤Ù¤ÆÍ­¸ú¤Ë¤¹¤ë¡£ ¤¿¤À¤· ``noauto'' ¥ª¥×¥·¥ç¥ó¤¬ÉÕ¤¤¤Æ¤¤¤ë¤â¤Î¤Ï½ü¤¯¡£ ¥¹¥ï¥Ã¥×¤È¤·¤Æ´û¤ËÆ°ºî¤·¤Æ¤¤¤ë¥Ç¥Ð¥¤¥¹¤Ï¡¢Ìۤäƥ¹¥­¥Ã¥×¤µ¤ì¤ë¡£

-e

swapon ¤Ë -a ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢ -e ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤ë¤È¡¢Â¸ºß¤·¤Ê¤¤¥Ç¥Ð¥¤¥¹¤òÌۤäƥ¹¥­¥Ã¥×¤¹¤ë¡£

-h

¥Ø¥ë¥×¥á¥Ã¥»¡¼¥¸¤ò¸Æ¤Ó½Ð¤¹¡£

-L label

»ØÄꤵ¤ì¤¿ label ¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ò»È¤¦¡£ (¤³¤ì¤ò»ÈÍѤ¹¤ë¤¿¤á¤Ë¤Ï /proc/partitions ¤Ë¥¢¥¯¥»¥¹¤¹¤ëɬÍפ¬¤¢¤ë¡£)

-p priority

swapon ¤ÎÍ¥ÀèÅÙ (priority) ¤ò»ØÄꤹ¤ë¡£ ¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï swapon ¤¬ 1.3.2 °Ê¹ß¤Î¥«¡¼¥Í¥ë²¼¤Ç¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¡¢¤«¤Ä»ÈÍѤµ¤ì¤ë¾ì¹ç¤Ë¤Î¤ßÍ­¸ú¤Ç¤¢¤ë¡£ priority ¤Ï 0 ¤«¤é 32767 ¤Î´Ö¤Î¿ôÃͤǤ¢¤ë¡£ ¿ôÃͤ¬Â礭¤¤¤Û¤ÉÍ¥ÀèÅÙ¤¬¹â¤¤¡£ ¥¹¥ï¥Ã¥×Í¥ÀèÅ٤ξܺ٤ÊÀâÌÀ¤Ë´Ø¤·¤Æ¤Ï swapon(2) ¤ò¸«¤è¡£ /etc/fstab ¤Î¥ª¥×¥·¥ç¥ó¥Õ¥£¡¼¥ë¥É¤Ë pri=value ¤òµ­½Ò¤¹¤ì¤Ð¡¢ swapon -a ¤ÎºÝ¤Ë¤½¤ÎÃͤ¬ÍѤ¤¤é¤ì¤ë¡£

-s

¥¹¥ï¥Ã¥×¤Î»ÈÍѾõ¶·¤ò¥Ç¥Ð¥¤¥¹Ëè¤Ëɽ¼¨¤¹¤ë¡£ "cat /proc/swaps" ¤ÈÅù¤·¤¤¡£ Linux 2.1.25 ¤è¤êÁ°¤Ç¤ÏÍøÍѤǤ­¤Ê¤¤¡£

-U uuid

»ØÄꤵ¤ì¤¿ uuid ¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ò»È¤¦¡£ (¤³¤ì¤ò»ÈÍѤ¹¤ë¤¿¤á¤Ë¤Ï /proc/partitions ¤Ë¥¢¥¯¥»¥¹¤¹¤ëɬÍפ¬¤¢¤ë¡£)

-v

¾ÜºÙ¤Ëɽ¼¨¤¹¤ë¡£

-V

¥Ð¡¼¥¸¥ç¥ó¤òɽ¼¨¤¹¤ë¡£

swapoff ¤Ï»ØÄꤷ¤¿¥Ç¥Ð¥¤¥¹¤ä¥Õ¥¡¥¤¥ë¤Î¥¹¥ï¥Ã¥Ô¥ó¥°¤ò̵¸ú¤Ë¤¹¤ë¡£ -a ¥Õ¥é¥°¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¤Ë¤Ï¡¢ (/proc/swaps ¤Þ¤¿¤Ï /etc/fstab Ãæ¤Î) ¤¹¤Ù¤Æ¤Î´ûÃΤΥ¹¥ï¥Ã¥×¥Ç¥Ð¥¤¥¹¤ä¥Õ¥¡¥¤¥ë¤Î¥¹¥ï¥Ã¥Ô¥ó¥°¤ò̵¸ú¤Ë¤¹¤ë¡£

Ãí°Õ

¥Û¡¼¥ë¤Î¤¢¤ë¥Õ¥¡¥¤¥ë¤Ë swapon ¤òÍѤ¤¤ë¤Ù¤­¤Ç¤Ï¤Ê¤¤¡£ NFS ¾å¤Î swap ¤ÏÆ°ºî¤·¤Ê¤¤¤«¤â¤·¤ì¤Ê¤¤¡£

´ØÏ¢¹àÌÜ

swapon(2), swapoff(2), fstab(5), init(8), mkswap(8), rc(8), mount(8)

¥Õ¥¡¥¤¥ë

/dev/hd?? ɸ½à¤Î¥Ú¡¼¥¸¥ó¥°¥Ç¥Ð¥¤¥¹
/dev/sd?? ɸ½à¤Î¥Ú¡¼¥¸¥ó¥°¥Ç¥Ð¥¤¥¹ (SCSI)
/etc/fstab ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò ascii ¤Çµ­½Ò¤·¤¿É½¡£

ÍúÎò

swapon ¥³¥Þ¥ó¥É¤Ï 4.0BSD ¤«¤éƳÆþ¤µ¤ì¤¿¡£