Disk I/Oã®ä½¿ç”¨çŽ‡ã‚’監視ã™ã‚‹ãƒ¯ãƒ³ãƒ©ã‚¤ãƒŠãƒ¼ - kazuhoã®ãƒ¡ãƒ¢ç½®ãå ´iostat -x ã® %util を監視ã—ã¦ã—ãã„値を超ãˆãŸã‚‰ã‚¢ãƒ©ãƒ¼ãƒˆãƒ¡ãƒ¼ãƒ«é£›ã°ã—ãŸã„ãªãã¨æ€ã£ã¦ crontab 書ã„ãŸã€‚ã“ã‚“ãªæ„Ÿã˜ã€‚ */5 * * * * perl -wle 'my $s = `/usr/bin/iostat -xk /dev/sd[abc] 270 2 | tail -4`; print $s if $s =~ m{\s(?:[0-9]{3}|[5-9][0-9])\.[0-9]+$}m'ãƒã‚¤ãƒ³ãƒˆã¯ã€ iostat ã®å¾Œã‚ã‹ã‚‰ï¼’ã¤ç›®ã®å¼•æ•°ãŒã‚µãƒ³ãƒ—リングを行ã†ç§’æ•° tail 㧠デãƒã‚¤ã‚¹æ•°+1 ã™ã‚‹ã“ã¨ã§ã€æœ€å¾Œã®ã‚µãƒ³ãƒ—ルをå–り出㙠æ£è¦è¡¨ç¾ã§50%以上ã ã£ãŸå ´åˆã«æ¨™æº–出力㫠iostat ã®çµæžœã‚’出ã™ï¼ãƒ¡ãƒ¼ãƒ«é€ä¿¡
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