{"id":2532,"date":"2020-01-01T15:28:13","date_gmt":"2020-01-01T06:28:13","guid":{"rendered":"https:\/\/lab4ict.com\/system\/?p=2532"},"modified":"2023-06-16T06:18:53","modified_gmt":"2023-06-15T21:18:53","slug":"dd%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%ef%bc%88%e5%bf%9c%e7%94%a8%e7%b7%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/lab4ict.com\/system\/archives\/2532","title":{"rendered":"Linux\u306edd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3053\u306a\u3059\uff01\uff08\u5fdc\u7528\u7de8\uff09"},"content":{"rendered":"<p>dd\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<h2>\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210<\/h2>\n<p>dd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002 \u30c6\u30b9\u30c8\u306a\u3069\u3067\u91cd\u5b9d\u3059\u308b\u3067\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306f\u300110MB\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u4f8b\u3067\u3059\u3002<\/p>\n<pre class=\"brush: plain; highlight: [1,5]; title: ; notranslate\" title=\"\">\r\n$ dd if=\/dev\/zero of=10mb bs=1M count=10\r\n10+0 records in\r\n10+0 records out\r\n10485760 bytes (10 MB, 10 MiB) copied, 0.00783086 s, 1.3 GB\/s\r\n$ ls -l 10mb\r\n-rw-r--r-- 1 sysadm001 sysadm001 10485760 Jan 29 15:46 10mb\r\n<\/pre>\n<h2>\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u3078\u306e\u66f8\u304d\u8fbc\u307f<\/h2>\n<p>\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u3078\u306e\u66f8\u304d\u8fbc\u307f\u306b\u4f7f\u7528\u3059\u308b\u30b1\u30fc\u30b9\u306e\u4f8b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u63a5\u7d9a\u3057\u305f\u30e1\u30c7\u30a3\u30a2\u306e\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u306e\u78ba\u8a8d<\/h3>\n<p>df\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u63a5\u7d9a\u3057\u305f\u30e1\u30c7\u30a3\u30a2\u306e\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br \/>\n\u307e\u305a\u3001\u63a5\u7d9a\u3057\u306a\u3044\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ df -h\r\n<\/pre>\n<p>\u30e1\u30c7\u30a3\u30a2\u3092\u63a5\u7d9a\u3057\u3001\u518d\u5ea6df\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u5897\u3048\u305f\u884c\u3092\u78ba\u8a8d\u3057\u3001\u63a5\u7d9a\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ df -h\r\n<\/pre>\n<p>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u30de\u30a6\u30f3\u30c8\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3057\u307e\u3059\u3002<br \/>\n\uff1c\u30b3\u30de\u30f3\u30c9\u4f8b\uff1e<br \/>\n\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u304c\"\/dev\/sdX1\"\u306e\u5834\u5408<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ umount \/dev\/sdX1\r\n<\/pre>\n<p>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ df -h\r\n<\/pre>\n<h3>dd\u30b3\u30de\u30f3\u30c9\u3067\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u306e\u5185\u5bb9\u3092\u30b3\u30d4\u30fc<\/h3>\n<p>dd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u306e\u5185\u5bb9\u3092\u30b3\u30d4\u30fc\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3010\u30d1\u30e9\u30e1\u30fc\u30bf\u3011<br \/>\n\u30fb\u5165\u529b\u30c7\u30d0\u30a4\u30b9\uff08\u4f8b\uff1a\/dev\/sda\uff09<br \/>\n\u30fb\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\uff08\u4f8b\uff1a\/dev\/sdb\uff09<br \/>\n\u30fb\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff08\u4f8b\uff1a1M\uff09<\/p>\n<p>\uff1c\u30b3\u30de\u30f3\u30c9\u4f8b\uff1e<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ sudo dd if=\/dev\/sda of=\/dev\/sdb bs=1M\r\n<\/pre>\n<h2>dd\u30b3\u30de\u30f3\u30c9\u3067\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u306e\u5185\u5bb9\u3092\u6d88\u53bb<\/h2>\n<p>dd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5916\u90e8\u30c7\u30d0\u30a4\u30b9\u306e\u5185\u5bb9\u30920\u3067\u57cb\u3081\u3067\u6d88\u53bb\u3067\u304d\u307e\u3059\u3002<br \/>\n\u3010\u30d1\u30e9\u30e1\u30fc\u30bf\u3011<br \/>\n\u30fb\u5185\u5bb9\u3092\u6d88\u53bb\u3059\u308b\u30c7\u30d0\u30a4\u30b9\uff08\u4f8b\uff1a\/dev\/sda\uff09<br \/>\n\u30fb\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff08\u4f8b\uff1a1MB\uff09<\/p>\n<p>\uff1c\u30b3\u30de\u30f3\u30c9\u4f8b\uff1e<\/p>\n<pre class=\"brush: plain; highlight: [1]; title: ; notranslate\" title=\"\">\r\n$ sudo dd if=\/dev\/zero of=\/dev\/sda bs=1M\r\n<\/pre>\n<h2>dd\u30b3\u30de\u30f3\u30c9\u306e\u9032\u884c\u72b6\u6cc1\u3092\u78ba\u8a8d<\/h2>\n<p>\u9032\u884c\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u756a\u53f7\u3092\u78ba\u8a8d\u3057\u3066\"USR1\"\u30b7\u30b0\u30ca\u30eb\u3092\u9001\u308a\u307e\u3059\u3002<br \/>\n\uff1c\u30b3\u30de\u30f3\u30c9\u4f8b\uff1e<\/p>\n<pre class=\"brush: plain; highlight: [1,2]; title: ; notranslate\" title=\"\">\r\n$ ps -ef | grep &quot;dd if&quot; | grep -v grep | grep -v sudo\r\n$ sudo kill -USR1 &lt;process number&gt;\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>dd\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002 \u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210 dd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002 \u30c6\u30b9\u30c8\u306a\u3069\u3067\u91cd\u5b9d\u3059\u308b\u3067\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306f\u300110MB\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u4f8b\u3067\u3059\u3002 $ dd if=\/d\u2026<\/p>\n","protected":false},"author":1,"featured_media":5527,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[501,282,25],"class_list":["post-2532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-processing","tag-dd","tag-linux","tag-25"],"_links":{"self":[{"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/posts\/2532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/comments?post=2532"}],"version-history":[{"count":0,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/posts\/2532\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/media\/5527"}],"wp:attachment":[{"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/media?parent=2532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/categories?post=2532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lab4ict.com\/system\/wp-json\/wp\/v2\/tags?post=2532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}