{"id":118,"date":"2010-08-20T11:31:45","date_gmt":"2010-08-20T02:31:45","guid":{"rendered":"http:\/\/kurosuke.org\/diary\/?p=118"},"modified":"2010-10-13T04:21:50","modified_gmt":"2010-10-12T19:21:50","slug":"hdd%e3%83%99%e3%83%b3%e3%83%81","status":"publish","type":"post","link":"https:\/\/kurosuke.org\/diary\/118","title":{"rendered":"HDD\u30d9\u30f3\u30c1"},"content":{"rendered":"<p>HDD\u5897\u3084\u3057\u305f\u3064\u3044\u3067\u306b\u30d9\u30f3\u30c1\u3068\u3063\u3066\u307f\u305f\u3002<br \/>\n\u74b0\u5883\u306f<br \/>\n\u30fblenovo ideapad S10e<br \/>\n\u30fbUbuntu 10.04 Server<\/p>\n<p>&#8212; WD1600BEVS (\u5185\u8535SATA 5400rpm) &#8212;<\/p>\n<pre># hdparm -Tt \/dev\/sda\r\n\r\n\/dev\/sda:\r\n Timing cached reads:   1274 MB in  2.00 seconds = 636.74 MB\/sec\r\n Timing buffered disk reads:  192 MB in  3.02 seconds =  63.64 MB\/sec\r\n\r\n# dd if=\/dev\/zero of=.\/hoge bs=128k count=32768\r\n32768+0 \u8a18\u9332\u59cb\u3081\r\n32768+0 \u8a18\u9332\u7d42\u308f\u308a\r\n4294967296 \u30d0\u30a4\u30c8 (4.3 GB) \u30b3\u30d4\u30fc\u7d42\u4e86, 362.446 s, 11.8 MB\/s<\/pre>\n<p>\n&#8212; I-O DATA HDCS-U (USB2.0\u5916\u4ed8\u3051HDD \u4e2d\u8eab\u306f\u4f55\u304c\u5165\u3063\u3066\u308b\u304b\u77e5\u3089\u306a\u3044) &#8212;<\/p>\n<pre># hdparm -Tt \/dev\/sde\r\n\r\n\/dev\/sde:\r\n Timing cached reads:   1240 MB in  2.00 seconds = 619.83 MB\/sec\r\n Timing buffered disk reads:   84 MB in  3.05 seconds =  27.56 MB\/sec\r\n\r\n# dd if=\/dev\/zero of=.\/1tb\/hoge bs=128k count=32768\r\n32768+0 \u8a18\u9332\u59cb\u3081\r\n32768+0 \u8a18\u9332\u7d42\u308f\u308a\r\n4294967296 \u30d0\u30a4\u30c8 (4.3 GB) \u30b3\u30d4\u30fc\u7d42\u4e86, 178.926 s, 24.0 MB\/s<\/pre>\n<p>\n&#8212; WD20EARS (USB2.0\u30b1\u30fc\u30b9\u306b\u5165\u308c\u3066\u63a5\u7d9a) &#8212;<\/p>\n<pre># hdparm -Tt \/dev\/sdd\r\n\r\n\/dev\/sdd:\r\n Timing cached reads:   1266 MB in  2.00 seconds = 633.03 MB\/sec\r\n Timing buffered disk reads:   84 MB in  3.02 seconds =  27.80 MB\/sec\r\n\r\n# dd if=\/dev\/zero of=.\/2tb\/hoge bs=128k count=32768\r\n32768+0 \u8a18\u9332\u59cb\u3081\r\n32768+0 \u8a18\u9332\u7d42\u308f\u308a\r\n4294967296 \u30d0\u30a4\u30c8 (4.3 GB) \u30b3\u30d4\u30fc\u7d42\u4e86, 188.968 s, 22.7 MB\/s<\/pre>\n<p>\n\u3046\u3093\u3002<br \/>\nWD20EARS\u306fSATA\u63a5\u7d9a\u3060\u3068100MB\/s\u3067\u308b\u3089\u3057\u3044\u3093\u3060\u3051\u3069\u306d\u3002<br \/>\nUSB\u3060\u304b\u3089\u4ed5\u65b9\u306a\u3044\u306d\u3002<br \/>\n\u30cd\u30c3\u30c8\u30d6\u30c3\u30af\u3060\u3057\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HDD\u5897\u3084\u3057\u305f\u3064\u3044\u3067\u306b\u30d9\u30f3\u30c1\u3068\u3063\u3066\u307f\u305f\u3002 \u74b0\u5883\u306f \u30fblenovo ideapad &hellip;<\/p>\n<p class=\"read-more\"><a href=\"https:\/\/kurosuke.org\/diary\/118\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[3],"tags":[],"jetpack_publicize_connections":[],"views":247,"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p49qdv-1U","jetpack_likes_enabled":false,"jetpack-related-posts":[{"id":514,"url":"https:\/\/kurosuke.org\/diary\/514","url_meta":{"origin":118,"position":0},"title":"\u7d50\u5c40\u3081\u3093\u3069\u304f\u3055\u3044\u306e\u3067CentOS\u3092\u69cb\u7bc9\u3002","author":"xxxkurosukexxx","date":"2013\/11\/24","format":false,"excerpt":"\u524d\u56de\u3044\u308d\u3044\u308d\u3068\u3081\u3093\u3069\u304f\u3055\u304f\u306a\u3063\u305f\u306e\u3067CentOS\u3092\u3044\u308c\u308b\u3053\u3068\u306b\u3057\u305f\u30dc\u30af\u3067\u3059\u3002 \u306a\u306e\u3067\u3001\u3055\u3063\u305d\u304f\u5165\u308c\u307e\u2026","rel":"","context":"\u6280\u8853\u7cfb\u8a18\u4e8b","block_context":{"text":"\u6280\u8853\u7cfb\u8a18\u4e8b","link":"https:\/\/kurosuke.org\/diary\/category\/tech"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":516,"url":"https:\/\/kurosuke.org\/diary\/516","url_meta":{"origin":118,"position":1},"title":"CentOS\u306b\u3044\u308f\u3086\u308bAPM\u3092\u63c3\u3048\u308b","author":"xxxkurosukexxx","date":"2013\/11\/24","format":false,"excerpt":"\u3068\u3044\u3046\u308f\u3051\u3067\u307e\u305f\u307e\u305f\u7d9a\u304d\u3067\u3059\u3002 \u3044\u308f\u3086\u308bAPM\uff08Apahce+PHP+MySQL\uff09\u3092\u5165\u308c\u307e\u3059\u3002 ..\u2026","rel":"","context":"\u6280\u8853\u7cfb\u8a18\u4e8b","block_context":{"text":"\u6280\u8853\u7cfb\u8a18\u4e8b","link":"https:\/\/kurosuke.org\/diary\/category\/tech"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/posts\/118"}],"collection":[{"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/comments?post=118"}],"version-history":[{"count":0,"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/posts\/118\/revisions"}],"wp:attachment":[{"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/media?parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/categories?post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kurosuke.org\/diary\/wp-json\/wp\/v2\/tags?post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}