{"id":75484,"date":"2025-06-04T11:45:58","date_gmt":"2025-06-04T11:45:58","guid":{"rendered":"https:\/\/www.sardinasystems.com\/%e6%9c%aa%e5%88%86%e7%b1%bb\/%e5%85%b3%e4%ba%8e%e7%ba%a0%e5%88%a0%e7%a0%81%e5%ad%98%e5%82%a8%e9%80%89%e6%8b%a9%e4%bd%a0%e9%9c%80%e8%a6%81%e7%9f%a5%e9%81%93%e7%9a%84%e4%ba%8b\/"},"modified":"2025-06-04T16:11:46","modified_gmt":"2025-06-04T16:11:46","slug":"what-you-need-to-know-about-erasure-coding-to-make-the-right-storage-choice","status":"publish","type":"post","link":"https:\/\/www.sardinasystems.com\/zh-hans\/blog-zh-hans\/what-you-need-to-know-about-erasure-coding-to-make-the-right-storage-choice\/","title":{"rendered":"\u5173\u4e8e\u7ea0\u5220\u7801\u5b58\u50a8\u9009\u62e9\u4f60\u9700\u8981\u77e5\u9053\u7684\u4e8b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:18px\"><em>\u5728\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u4f01\u4e1a\u6b63\u5728\u751f\u6210\u6bd4\u4ee5\u5f80\u66f4\u591a\u7684\u4fe1\u606f\u3002\u4f46\u4ec5\u4ec5\u5b58\u50a8\u6570\u636e\u662f\u4e0d\u591f\u7684\u2014\u2014\u5b83\u5fc5\u987b\u9ad8\u6548\u3001\u53ef\u9760\u4e14\u7ecf\u6d4e\u5730\u5b58\u50a8\u3002\u8fd9\u5c31\u662f\u7ea0\u5220\u7801\uff08EC\uff09\u53d1\u6325\u4f5c\u7528\u7684\u5730\u65b9\u3002\u7ea0\u5220\u7801\u88ab<a href=\"https:\/\/ceph.io\/en\/\" target=\"_blank\" rel=\"noopener\" title=\"\">\u50cfCeph\u8fd9\u6837\u7684<\/a>\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf\u4f7f\u7528\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u667a\u80fd\u7684\u65b9\u5f0f\u6765\u4fdd\u62a4\u6570\u636e\uff0c\u540c\u65f6\u4f18\u5316\u5b58\u50a8\u5229\u7528\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u91ca\u7ea0\u5220\u7801\u662f\u4ec0\u4e48\uff0c\u5b83\u5982\u4f55\u5de5\u4f5c\uff0c\u4ee5\u53ca\u4f55\u65f6\u5e94\u8be5\u4f7f\u7528\u5b83\u800c\u4e0d\u662f\u4f20\u7edf\u7684\u590d\u5236\u65b9\u6cd5\u3002    <\/em><br\/><\/p>\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>\u590d\u5236 vs. \u7ea0\u5220\u7801\uff1a\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8bb8\u591a\u5b58\u50a8\u7cfb\u7edf\uff0c<a href=\"https:\/\/www.sardinasystems.com\/zh-hans\/fishos\/ceph-storage\/\" target=\"_blank\" rel=\"noopener\" title=\"\">\u5305\u62ecCeph<\/a>\uff0c\u4f7f\u7528\u590d\u5236\u6765\u4fdd\u62a4\u6570\u636e\u3002<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-1-color\">\u590d\u5236\u5f88\u76f4\u63a5\uff1a<\/mark>\u6bcf\u4e00\u4efd\u6570\u636e\u90fd\u4f1a\u5728\u591a\u4e2a\u78c1\u76d8\u4e0a\u590d\u5236\uff08\u901a\u5e38\u662f3\u4efd\uff09\u3002\u8fd9\u79cd\u65b9\u6cd5\u5feb\u901f\u53ef\u9760\uff0c\u7279\u522b\u9002\u7528\u4e8e\u5c0f\u6587\u4ef6\u6216\u9ad8\u6027\u80fd\u73af\u5883\u2014\u2014<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u4f46\u5b83\u6d88\u8017\u5927\u91cf\u5b58\u50a8\u7a7a\u95f4\u3002<\/mark> <\/p>\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-1-color\">\u53e6\u4e00\u65b9\u9762\uff0c\u7ea0\u5220\u7801<\/mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-1-color\">\u91c7\u7528\u4e86\u66f4\u9ad8\u6548\u7684\u65b9\u6cd5\u3002<\/mark>\u5b83\u4e0d\u662f\u590d\u5236\u6574\u4e2a\u6570\u636e\u96c6\uff0c<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u800c\u662f\u5c06\u5b83\u4eec\u5206\u6210\u66f4\u5c0f\u7684\u7247\u6bb5<\/mark>\u2014\u2014\u6570\u636e\u5757\u548c\u6821\u9a8c\u5757\uff08\u7528\u4e8e\u6062\u590d\uff09\u7684\u7ec4\u5408\u3002\u8fd9\u4e9b\u5757\u5206\u5e03\u5728\u4e0d\u540c\u7684\u78c1\u76d8\u4e0a\u3002\u5982\u679c\u5c11\u6570\u78c1\u76d8\u51fa\u73b0\u6545\u969c\uff0c\u53ef\u4ee5\u4f7f\u7528\u6821\u9a8c\u4fe1\u606f\u91cd\u5efa\u4e22\u5931\u7684\u6570\u636e\u3002<br\/>\u4e0b\u8868\u6bd4\u8f83\u4e86\u590d\u5236\u548c\u7ea0\u5220\u7801\u5728\u5b58\u50a8\u6548\u7387\u3001\u6062\u590d\u65b9\u6cd5\u548c\u7406\u60f3\u4f7f\u7528\u573a\u666f\u65b9\u9762\u7684\u5dee\u5f02\uff1a  <br\/><\/p>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-scaled.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-1024x576.png\" alt=\"&#x590D;&#x5236;&#x548C;&#x7EA0;&#x5220;&#x7801;&#x7684;&#x5B58;&#x50A8;&#x6BD4;&#x8F83;\" class=\"wp-image-75430\" srcset=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-1024x576.png 1024w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-300x169.png 300w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-768x432.png 768w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-1536x864.png 1536w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-1390x782.png 1390w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Replication-vs.-Erasure-Coding-1920x1080.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><br\/><strong>\u7ea0\u5220\u7801\u5728Ceph\u4e2d\u7684\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Ceph\u4e2d\u7684\u7ea0\u5220\u7801\u53ef\u4ee5\u901a\u8fc7<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-1-color\">\u5b9a\u4e49\u6570\u636e\u5982\u4f55\u5206\u5272\u548c\u4fdd\u62a4\u7684<\/mark>\u914d\u7f6e\u6587\u4ef6\u6765\u914d\u7f6e\u3002\u6bcf\u4e2aEC\u914d\u7f6e\u6587\u4ef6\u7531\u4e24\u4e2a\u53c2\u6570\u5b9a\u4e49\uff1a<br\/>\u2022 k \u2013 \u6570\u636e\u5757\u7684\u6570\u91cf<br\/>\u2022 m \u2013 \u7f16\u7801\uff08\u6821\u9a8c\uff09\u5757\u7684\u6570\u91cf<\/p>\n\n<p class=\"wp-block-paragraph\">\u7cfb\u7edf\u521b\u5efa\u603b\u5171k + m\u4e2a\u5757\uff0c\u8fd9\u4e9b\u5757\u5206\u5e03\u5728\u5b58\u50a8\u96c6\u7fa4\u4e2d\u3002Ceph\u53ef\u4ee5\u5bb9\u5fcd\u6700\u591am\u4e2a\u6545\u969c\u800c\u4e0d\u4e22\u5931\u6570\u636e\u3002<br\/>\u4e0b\u8868\u5217\u51fa\u4e86\u5e38\u7528\u7684\u7ea0\u5220\u7801\u914d\u7f6e\u6587\u4ef6\uff0c\u5e76\u6bd4\u8f83\u4e86\u5b83\u4eec\u5728\u5bb9\u9519\u80fd\u529b\u548c\u5b58\u50a8\u5f00\u9500\u65b9\u9762\u7684\u5dee\u5f02\uff1a <\/p>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-scaled.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-1024x576.png\" alt=\"&#x6700;&#x5E38;&#x89C1;&#x7684;&#x5B58;&#x50A8;&#x7EA0;&#x5220;&#x7801;&#x914D;&#x7F6E;&#x6587;&#x4EF6;\" class=\"wp-image-75439\" srcset=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-1024x576.png 1024w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-300x169.png 300w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-768x432.png 768w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-1536x864.png 1536w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-1390x782.png 1390w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/EC-Coding-profiles-1920x1080.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>\u793a\u4f8b\uff1a3+2\u914d\u7f6e\u6587\u4ef6\u5c06\u6570\u636e\u5206\u62103\u4e2a\u5757\u5e76\u6dfb\u52a02\u4e2a\u6821\u9a8c\u5757\u3002\u5373\u4f7f\u4e22\u59312\u4e2a\u5757\uff0c5\u4e2a\u5757\u4e2d\u7684\u4efb\u610f3\u4e2a\u4e5f\u53ef\u4ee5\u6062\u590d\u539f\u59cb\u6570\u636e\u3002 <\/em><\/p>\n<\/blockquote>\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>\u9009\u62e9\u6b63\u786e\u7684EC\u914d\u7f6e\u6587\u4ef6<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">\u9009\u62e9\u53d6\u51b3\u4e8e\u4f60\u7684\u73af\u5883\u548c\u76ee\u6807\uff1a<br\/><strong>\u2022 \u8f83\u4f4e\u7684k\uff0c\u8f83\u9ad8\u7684m\uff08\u4f8b\u5982\uff0c3+2\uff09\uff1a<\/strong>\u66f4\u591a\u5197\u4f59\uff0c\u9002\u5408\u8f83\u5c0f\u7684\u96c6\u7fa4\u6216\u5c06\u5f39\u6027\u4f5c\u4e3a\u9996\u8981\u8003\u8651\u7684\u60c5\u51b5\u3002<br\/><strong>\u2022 \u8f83\u9ad8\u7684k\uff0c\u8f83\u4f4e\u7684m\uff08\u4f8b\u5982\uff0c10+4\uff09\uff1a<\/strong>\u66f4\u597d\u7684\u5b58\u50a8\u6548\u7387\uff0c\u975e\u5e38\u9002\u5408\u4f18\u5148\u8003\u8651\u6210\u672c\u8282\u7701\u7684\u5927\u89c4\u6a21\u90e8\u7f72\u3002<br\/><br\/>\u7ea0\u5220\u7801\u63d0\u4f9b\u4e86\u51e0\u4e2a\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u5b58\u50a8\u7cfb\u7edf\u7684\u5f3a\u5927\u9009\u62e9\uff0c\u5305\u62ec\uff1a<br\/><strong>\u2022 \u9ad8\u6548\u5b58\u50a8\uff1a<\/strong>\u6bd4\u590d\u5236\u7684\u5f00\u9500\u66f4\u4f4e\u2014\u2014\u76f8\u540c\u7684\u78c1\u76d8\u7a7a\u95f4\u53ef\u4ee5\u5b58\u50a8\u66f4\u591a\u6570\u636e\u3002<br\/><strong>\u2022 \u9ad8\u5bb9\u9519\u6027\uff1a<\/strong>\u53ef\u4ee5\u5904\u7406\u591a\u4e2a\u78c1\u76d8\u6545\u969c\u800c\u4e0d\u4e22\u5931\u6570\u636e\u3002<br\/><strong>\u2022 \u53ef\u6269\u5c55\u6027\uff1a<\/strong>\u9002\u7528\u4e8e\u5927\u578b\u96c6\u7fa4\u548c\u4e91\u89c4\u6a21\u90e8\u7f72\u3002<br\/><strong>\u2022 \u81ea\u5b9a\u4e49\u5197\u4f59\uff1a<\/strong>\u8c03\u6574k+m\u6bd4\u7387\u4ee5\u6ee1\u8db3\u4f60\u7684\u6301\u4e45\u6027\u548c\u9884\u7b97\u9700\u6c42\u3002<\/p>\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>\u7ea0\u5220\u7801\u4f55\u65f6\u6709\u610f\u4e49<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">\u7ea0\u5220\u7801\u5e76\u4e0d\u9002\u5408\u6bcf\u79cd\u60c5\u51b5\u3002\u4f46\u5f53\u6218\u7565\u6027\u5730\u5e94\u7528\u65f6\uff0c\u5b83\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\u90fd\u8868\u73b0\u51fa\u8272\u3002\u4ee5\u4e0b\u662f\u7ea0\u5220\u7801\u8868\u73b0\u51fa\u8272\u7684\u573a\u666f\uff0c\u4ee5\u53ca\u5b83\u7279\u522b\u9002\u5408\u6bcf\u79cd\u573a\u666f\u7684\u539f\u56e0\uff1a  <br\/><\/p>\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-1024x571.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"571\" src=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-1024x571.png\" alt=\"&#x5B58;&#x50A8;&#x4E2D;&#x590D;&#x5236;&#x548C;&#x7EA0;&#x5220;&#x7801;&#x7684;&#x6BD4;&#x8F83;\" class=\"wp-image-75450\" srcset=\"https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-1024x571.png 1024w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-300x167.png 300w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-768x428.png 768w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding-1536x856.png 1536w, https:\/\/www.sardinasystems.com\/wp-content\/uploads\/2025\/06\/Comparison-of-Replication-vs.-Erasure-Coding.png 1615w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong><br\/><strong>\u6700\u9002\u5408\u590d\u5236\u7684\u573a\u666f<\/strong><\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">\u7ea0\u5220\u7801\u5728\u5199\u5165\u548c\u91cd\u5efa\u8fc7\u7a0b\u4e2d\u9700\u8981\u66f4\u591a\u7684CPU\u548cI\/O\uff0c\u56e0\u6b64\u53ef\u80fd\u4e0d\u9002\u5408\uff1a<br\/>\u2022 \u6570\u636e\u5e93\u6216\u865a\u62df\u673a\uff08\u4f8b\u5982\uff0cCeph RBD\uff09<br\/>\u2022 \u5177\u6709\u5c0f\u6587\u4ef6\u7684\u4ea4\u4e92\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982\uff0cCephFS\uff09<br\/>\u2022 \u4f4e\u5ef6\u8fdf\u3001\u9ad8\u541e\u5410\u91cfI\/O\u5de5\u4f5c\u8d1f\u8f7d<br\/>\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5c3d\u7ba1\u5b58\u50a8\u6210\u672c\u66f4\u9ad8\uff0c\u590d\u5236\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u6027\u80fd\u3002<\/p>\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n<p class=\"wp-block-paragraph\">\u7ea0\u5220\u7801\u662f\u4e00\u79cd\u6709\u6548\u7684\u7b56\u7565\uff0c\u9002\u7528\u4e8e\u90a3\u4e9b<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-1-color\">\u65e8\u5728\u4f18\u5316\u5b58\u50a8\u6548\u7387\u3001\u6301\u4e45\u6027\u548c\u53ef\u6269\u5c55\u6027\u7684\u7ec4\u7ec7\u3002<\/mark>\u5728Ceph\u4e2d\uff0c\u5b83\u901a\u8fc7\u5c06\u6570\u636e\u5206\u89e3\u6210\u5e26\u6709\u5947\u5076\u6821\u9a8c\u7684\u5757\u6765\u51cf\u5c11\u5b58\u50a8\u5f00\u9500\uff0c\u4ece\u800c\u5728\u4e0d\u8fdb\u884c\u5b8c\u5168\u6570\u636e\u590d\u5236\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u4ece\u6545\u969c\u4e2d\u6062\u590d\u3002\u50cf6+3\u8fd9\u6837\u7684\u914d\u7f6e\u53ef\u4ee5\u5bb9\u5fcd\u6700\u591a\u4e09\u6b21\u6545\u969c\uff0c<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color 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