{"id":1140,"date":"2026-01-01T19:14:18","date_gmt":"2026-01-01T11:14:18","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=1140"},"modified":"2026-01-01T19:14:18","modified_gmt":"2026-01-01T11:14:18","slug":"raid5%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d%e5%a6%82%e4%bd%95%e5%81%9araid5raid5-%e5%87%a0%e5%9d%97%e7%a1%ac%e7%9b%98","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2026\/01\/01\/raid5%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d%e5%a6%82%e4%bd%95%e5%81%9araid5raid5-%e5%87%a0%e5%9d%97%e7%a1%ac%e7%9b%98\/","title":{"rendered":"raid5\u4ec0\u4e48\u610f\u601d?\u5982\u4f55\u505araid5?raid5 \u51e0\u5757\u786c\u76d8?"},"content":{"rendered":"\n<p>\u597d\u7684\uff0c\u6211\u4eec\u6765\u8be6\u7ec6\u8bb2\u89e3 <strong>RAID5<\/strong> \u7684\u6982\u5ff5\u3001\u7ec4\u6210\u3001\u786c\u76d8\u6570\u91cf\u8981\u6c42\u4ee5\u53ca\u5b9e\u9645\u64cd\u4f5c\u65b9\u6cd5\u3002\u4e3a\u4e86\u6e05\u6670\uff0c\u6211\u4f1a\u5206\u6210\u51e0\u4e2a\u90e8\u5206\u8bf4\u660e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1\ufe0f\u20e3 RAID5 \u7684\u6982\u5ff5<\/h2>\n\n\n\n<p><strong>RAID5\uff08Redundant Array of Independent Disks 5\uff09<\/strong> \u662f\u4e00\u79cd\u5e38\u7528\u7684 <strong>\u78c1\u76d8\u9635\u5217\uff08RAID\uff09\u7ea7\u522b<\/strong>\uff0c\u7279\u70b9\u662f <strong>\u6570\u636e\u548c\u5947\u5076\u6821\u9a8c\u5206\u5e03\u5728\u591a\u5757\u786c\u76d8\u4e0a<\/strong>\u3002<\/p>\n\n\n\n<p>\u6838\u5fc3\u7279\u70b9\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u6570\u636e\u4fdd\u62a4<\/td><td>\u4f7f\u7528\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c\uff08Parity\uff09\u4fdd\u8bc1\u5355\u5757\u786c\u76d8\u6545\u969c\u65f6\u6570\u636e\u4e0d\u4e22\u5931<\/td><\/tr><tr><td>\u786c\u76d8\u6570\u91cf<\/td><td>\u6700\u5c11 3 \u5757<\/td><\/tr><tr><td>\u5bb9\u91cf\u8ba1\u7b97<\/td><td>\u53ef\u7528\u5bb9\u91cf = \uff08\u786c\u76d8\u603b\u6570 &#8211; 1\uff09\u00d7 \u5355\u5757\u5bb9\u91cf<\/td><\/tr><tr><td>\u8bfb\u5199\u6027\u80fd<\/td><td>\u8bfb\u6027\u80fd\u8f83\u597d\uff0c\u5199\u6027\u80fd\u7a0d\u4f4e\uff08\u56e0\u4e3a\u8981\u8ba1\u7b97\u5947\u5076\u6821\u9a8c\uff09<\/td><\/tr><tr><td>\u5bb9\u9519\u80fd\u529b<\/td><td>\u80fd\u627f\u53d7 <strong>1 \u5757\u786c\u76d8\u635f\u574f<\/strong>\uff0c\u591a\u5757\u635f\u574f\u4f1a\u4e22\u5931\u6570\u636e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u7b80\u5355\u7406\u89e3<\/strong>\uff1aRAID5 \u5c31\u50cf\u628a\u6570\u636e\u548c\u201c\u6821\u9a8c\u4fe1\u606f\u201d\u5206\u6563\u5b58\u50a8\u5728\u591a\u5757\u786c\u76d8\u4e0a\uff0c\u5982\u679c\u5176\u4e2d\u4e00\u5757\u574f\u6389\uff0c\u5269\u4e0b\u7684\u786c\u76d8\u53ef\u4ee5\u901a\u8fc7\u6821\u9a8c\u4fe1\u606f\u6062\u590d\u6570\u636e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2\ufe0f\u20e3 RAID5 \u6700\u5c11\u51e0\u5757\u786c\u76d8\uff1f<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6700\u5c11 3 \u5757\u786c\u76d8<\/strong>\u624d\u80fd\u505a RAID5<\/li>\n\n\n\n<li>\u786c\u76d8\u8d8a\u591a\uff0c\u53ef\u7528\u5bb9\u91cf\u8d8a\u5927\uff0c\u4f46\u53ea\u5141\u8bb8 <strong>1 \u5757\u786c\u76d8\u635f\u574f\u800c\u4e0d\u4e22\u6570\u636e<\/strong><\/li>\n\n\n\n<li>\u4f8b\u5b50\uff1a\n<ul class=\"wp-block-list\">\n<li>3 \u5757 1TB \u786c\u76d8 \u2192 \u53ef\u7528\u5bb9\u91cf = 2TB<\/li>\n\n\n\n<li>4 \u5757 2TB \u786c\u76d8 \u2192 \u53ef\u7528\u5bb9\u91cf = 6TB<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u516c\u5f0f\uff1a<\/p>\n\n\n\n<p>[<br>\\text{RAID5 \u53ef\u7528\u5bb9\u91cf} = (\\text{\u786c\u76d8\u6570\u91cf} &#8211; 1) \\times \\text{\u6700\u5c0f\u786c\u76d8\u5bb9\u91cf}<br>]<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3\ufe0f\u20e3 RAID5 \u5982\u4f55\u505a\uff1f\uff08\u786c\u4ef6\u6216\u8f6f\u4ef6\u5b9e\u73b0\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u786c\u4ef6 RAID5<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7 <strong>RAID \u63a7\u5236\u5361\uff08RAID Controller\uff09<\/strong> \u5b9e\u73b0<\/li>\n\n\n\n<li>\u6b65\u9aa4\uff1a\n<ol class=\"wp-block-list\">\n<li>\u786e\u8ba4\u786c\u76d8\u6570\u91cf \u2265 3 \u5757<\/li>\n\n\n\n<li>\u8fdb\u5165 RAID \u5361 BIOS \/ \u7ba1\u7406\u754c\u9762<\/li>\n\n\n\n<li>\u9009\u62e9 <strong>RAID5<\/strong> \u6a21\u5f0f<\/li>\n\n\n\n<li>\u9009\u62e9\u53c2\u4e0e\u7684\u786c\u76d8<\/li>\n\n\n\n<li>\u521d\u59cb\u5316\u9635\u5217 \u2192 \u7cfb\u7edf\u5c31\u4f1a\u751f\u6210 RAID5<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>\u4f18\u70b9\uff1a\u6027\u80fd\u9ad8\uff0c\u7cfb\u7edf\u900f\u660e<\/li>\n\n\n\n<li>\u7f3a\u70b9\uff1a\u63a7\u5236\u5361\u6545\u969c\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e0d\u53ef\u8bfb\uff08\u5982\u679c\u4e0d\u652f\u6301\u8de8\u5e73\u53f0\u8bfb\u53d6\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u8f6f\u4ef6 RAID5\uff08Windows \/ Linux\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Windows \u7cfb\u7edf<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6253\u5f00 <strong>\u78c1\u76d8\u7ba1\u7406<\/strong> \u2192 \u53f3\u952e\u672a\u5206\u533a\u786c\u76d8 \u2192 \u201c\u65b0\u5efa RAID5 \u5377\u201d<\/li>\n\n\n\n<li>\u9009\u62e9 \u22653 \u5757\u786c\u76d8<\/li>\n\n\n\n<li>\u8bbe\u7f6e\u5377\u5927\u5c0f\u548c\u76d8\u7b26 \u2192 \u5b8c\u6210\u521d\u59cb\u5316<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u9002\u7528\u4e8e Windows Server \u7cfb\u7edf<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">Linux \u7cfb\u7edf\uff08\u4f7f\u7528 <code>mdadm<\/code>\uff09<\/h4>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n# \u5b89\u88c5 mdadm\uff08\u5982\u679c\u672a\u5b89\u88c5\uff09\nsudo apt install mdadm\n\n# \u521b\u5efa RAID5 \u9635\u5217\nsudo mdadm --create --verbose \/dev\/md0 --level=5 --raid-devices=3 \/dev\/sdb \/dev\/sdc \/dev\/sdd\n\n# \u67e5\u770b RAID \u9635\u5217\u72b6\u6001\ncat \/proc\/mdstat\n\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><code>\/dev\/md0<\/code> \u662f\u751f\u6210\u7684 RAID5 \u8bbe\u5907<\/li>\n\n\n\n<li><code>--level=5<\/code> \u8868\u793a RAID5<\/li>\n\n\n\n<li><code>--raid-devices=3<\/code> \u8868\u793a 3 \u5757\u786c\u76d8<\/li>\n\n\n\n<li>\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u589e\u52a0\u786c\u76d8\u6570\u91cf<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 RAID5 \u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u786c\u76d8\u5c3d\u91cf\u540c\u578b\u53f7\u540c\u5bb9\u91cf<\/strong>\uff0c\u5426\u5219\u5bb9\u91cf\u4ee5\u6700\u5c0f\u786c\u76d8\u4e3a\u51c6<\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u5907\u4efd<\/strong>\uff0cRAID5 \u53ef\u4ee5\u5bb9\u5fcd 1 \u5757\u786c\u76d8\u574f\uff0c\u4f46\u4e8c\u6b21\u6545\u969c\u4ecd\u4f1a\u4e22\u5931\u6570\u636e<\/li>\n\n\n\n<li><strong>\u786c\u76d8\u574f\u5757\u91cd\u5efa\u65f6\u95f4\u957f<\/strong>\uff0c\u5728\u91cd\u5efa\u671f\u95f4\u5c3d\u91cf\u4e0d\u8981\u8fdb\u884c\u9ad8\u8d1f\u8f7d\u64cd\u4f5c<\/li>\n\n\n\n<li><strong>\u5199\u5165\u6027\u80fd\u4f4e\u4e8e RAID0\/Raid1<\/strong>\uff0c\u4e3b\u8981\u74f6\u9888\u662f\u5947\u5076\u6821\u9a8c\u8ba1\u7b97<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4\ufe0f\u20e3 RAID5 \u793a\u4f8b\u8ba1\u7b97<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u786c\u76d8\u6570\u91cf<\/th><th>\u5355\u76d8\u5bb9\u91cf<\/th><th>\u53ef\u7528\u5bb9\u91cf<\/th><th>\u5bb9\u9519\u80fd\u529b<\/th><\/tr><\/thead><tbody><tr><td>3<\/td><td>1TB<\/td><td>2TB<\/td><td>1 \u5757\u786c\u76d8<\/td><\/tr><tr><td>4<\/td><td>2TB<\/td><td>6TB<\/td><td>1 \u5757\u786c\u76d8<\/td><\/tr><tr><td>5<\/td><td>2TB<\/td><td>8TB<\/td><td>1 \u5757\u786c\u76d8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>RAID5 \u5b9e\u9645\u5bb9\u91cf\u6c38\u8fdc\u662f\u603b\u786c\u76d8\u5bb9\u91cf\u51cf\u53bb 1 \u5757\u786c\u76d8\u5bb9\u91cf\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u603b\u7ed3\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RAID5<\/strong> = \u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c\uff0c\u6700\u5c11 3 \u5757\u786c\u76d8\uff0c\u80fd\u5bb9\u5fcd 1 \u5757\u786c\u76d8\u635f\u574f<\/li>\n\n\n\n<li>\u53ef\u4ee5\u901a\u8fc7 <strong>\u786c\u4ef6 RAID \u63a7\u5236\u5361<\/strong> \u6216 <strong>\u8f6f\u4ef6 RAID\uff08Windows\/Linux\uff09<\/strong> \u521b\u5efa<\/li>\n\n\n\n<li>RAID5 \u63d0\u4f9b\u6570\u636e\u5197\u4f59\u548c\u4e00\u5b9a\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u4e0d\u7b49\u4e8e\u5907\u4efd<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u597d\u7684\uff0c\u6211\u4eec\u6765\u8be6\u7ec6\u8bb2\u89e3 RAID5 \u7684\u6982\u5ff5\u3001\u7ec4\u6210\u3001\u786c\u76d8\u6570\u91cf\u8981\u6c42\u4ee5\u53ca\u5b9e\u9645\u64cd\u4f5c\u65b9\u6cd5\u3002\u4e3a&#8230; 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