{"id":2527,"date":"2010-11-12T00:14:03","date_gmt":"2010-11-11T16:14:03","guid":{"rendered":"http:\/\/www.orczhou.com\/?p=2527"},"modified":"2010-11-12T00:14:03","modified_gmt":"2010-11-11T16:14:03","slug":"flashcache-configuration-how-to","status":"publish","type":"post","link":"https:\/\/www.orczhou.com\/index.php\/2010\/11\/flashcache-configuration-how-to\/","title":{"rendered":"Flashcache\u914d\u7f6e"},"content":{"rendered":"

\u524d\u9762\u5199\u4e86\u4e24\u7bc7\u6587\u7ae0\uff0c\u5206\u522b\u4ecb\u7ecd\u4e86Flashcache<\/a>\u7684\u57fa\u672c\u539f\u7406\u548c\u7f16\u8bd1\u5b89\u88c5<\/a>\uff0c\u672c\u6587\u4ecb\u7ecd\u4e00\u4e0bFlashcache\u7684\u914d\u7f6e\u3002<\/p>\n

\u5047\u8bbe\u73b0\u5728\u4f60\u5df2\u7ecf\u7f16\u8bd1\u597d\u4e86<\/a>Flashcache\uff0c\u5df2\u7ecf\u88c5\u597d\u4e86ssd\u76d8\uff08\u5047\u8bbe\u662f\/dev\/sdb\uff09\u548csas\u76d8\uff08\u5047\u8bbe\u9700\u8981\u4f7f\u7528\u7684\u662f\u5206\u533a\/dev\/sda12\uff0c\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2aRAID\u7ec4\uff09\u3002\u63a5\u4e0b\u6765\uff0c\u770b\u770b\u5982\u4f55\u4f7f\u7528Flashcache\u5c06\u4e0a\u9762\u4e24\u4e2a\u8bbe\u5907\u865a\u62df\u6210\u4e00\u4e2a\u5e26\u7f13\u5b58\u7684\u5757\u8bbe\u5907\u3002<\/p>\n

1. \u9996\u6b21\u521b\u5efaFlashcach\u8bbe\u5907<\/div>\n

\u6ce8\uff1a\u8bf7\u5907\u4efd\u4f60\u7684\u6570\u636e\u5148\uff01\uff01\uff01\u7279\u522b\u662f\/dev\/sdb\uff0c\u8fd9\u4e2a\u8bbe\u5907\u4e0a\u7684\u6570\u636e\u5c06\u4f1a\u88ab\u6e05\u7a7a\uff1b\u7406\u8bba\u4e0a\/dev\/sda12\u4e0a\u7684\u6570\u636e\u4e0d\u4f1a\u6709\u4efb\u4f55\u4e22\u5931\u3002<\/p>\n

\u9996\u5148\u786e\u4fddsda12\u6ca1\u6709\u88ab\u6302\u8f7d\uff0c\u5982\u679c\u6302\u8f7d\u4e86\uff0c\u4f7f\u7528umount\u5378\u8f7d\u4e4b\uff0c\u7136\u540e\u4f7f\u7528flashcache_create\u521b\u5efa\u8bbe\u5907\uff1a<\/p>\n

.\/flashcache_create cachedev \/dev\/sdb \/dev\/sda12<\/div>\n

\u5982\u679c\u662fsudo\u5e10\u53f7\u53ef\u80fd\u4f1a\u9047\u5230\u5982\u4e0b\u7684\u62a5\u9519\uff1a<\/p>\n

sh: dmsetup: command not found<\/p><\/blockquote>\n

\u53ef\u4ee5\u8bbe\u7f6ePATH\u53d8\u91cf\u7684\u529e\u6cd5\uff0c\u6765\u907f\u514d\uff1a\uff08\u611f\u8c22\u4f59\u5cf0<\/a>\u5e2e\u52a9\uff09<\/p>\n

sudo PATH=\/sbin .\/flashcache_create cachedev \/dev\/sdb \/dev\/sda12<\/div>\n

\u8fd9\u6837Linux\u5c31\u865a\u62df\u9664\u4e86\u4e00\u4e2a\u5e26\u7f13\u5b58\u7684\u5757\u8bbe\u5907\uff1a<\/p>\n

$ls -lah \/dev\/mapper\/cachedev
\nbrw-rw—- 1 root disk 253, 0 Oct 8 15:46 \/dev\/mapper\/cachedev<\/div>\n
2. \u4f7f\u7528\u8be5\u8bbe\u5907<\/div>\n

\u8fd9\u6837\u5c31\u53ef\u4ee5\u50cf\u4f7f\u7528\u4e00\u822c\u7684\u5757\u8bbe\u5907\u4e00\u6837\uff0c\u6765\u4f7f\u7528\u8be5\u8bbe\u5907\u4e86\u3002\u5982\u679c\u539f\u6765\u5206\u533a\/dev\/sda12\u4e0a\u5df2\u7ecf\u6709\u6587\u4ef6\u7cfb\u7edf\uff0cmount\u540e\u8fd8\u53ef\u4ee5\u6b63\u5e38\u4f7f\u7528\uff1b\u5982\u679c\u6ca1\u6709\u6587\u4ef6\u7cfb\u7edf\uff0c\u4e5f\u53ef\u4ee5\u548c\u4e00\u822c\u7684\u8bbe\u5907\u4e00\u6837\u505a\u5148\u505a\u6587\u4ef6\u7cfb\u7edf\uff0c\u7136\u540emount\u5e76\u4f7f\u7528\u4e4b\u3002<\/p>\n

mount \/dev\/mapper\/cachedev \/u01<\/div>\n

\u5f88\u7b80\u5355\u5427:)<\/p>\n

3. \u5982\u4f55\u91cd\u505aFlashcache<\/div>\n

\u9996\u5148\u9700\u8981umount\u76f8\u5e94\u5206\u533a\uff0c\u7136\u540e\u5982\u679c\u9700\u8981\u91cd\u65b0\u505aFlashcache\uff1a<\/p>\n

umount \/u01
\ndmsetup remove cachedev
\n.\/flashcache_destroy \/dev\/sdb\n<\/div>\n

\u5982\u679c\u9700\u8981\u91cd\u5efa\uff0c\u518d\u5b89\u88c5\u4e0a\u9762\u7684flashcache_create\u91cd\u5efa\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u524d\u9762\u5199\u4e86\u4e24\u7bc7\u6587\u7ae0\uff0c\u5206\u522b\u4ecb\u7ecd\u4e86Flashcache\u7684\u57fa\u672c\u539f\u7406\u548c\u7f16\u8bd1\u5b89\u88c5\uff0c\u672c\u6587\u4ecb\u7ecd\u4e00\u4e0bFlashcache\u7684\u914d\u7f6e\u3002 \u5047\u8bbe\u73b0\u5728\u4f60\u5df2\u7ecf\u7f16\u8bd1\u597d\u4e86Flashcache\uff0c\u5df2\u7ecf\u88c5\u597d\u4e86ssd\u76d8\uff08\u5047\u8bbe\u662f\/dev\/sdb\uff09\u548csas\u76d8\uff08\u5047\u8bbe\u9700\u8981\u4f7f\u7528\u7684\u662f\u5206\u533a\/dev\/sda12\uff0c\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2aRAID\u7ec4\uff09\u3002\u63a5\u4e0b\u6765\uff0c\u770b\u770b\u5982\u4f55\u4f7f\u7528Flashcache\u5c06\u4e0a\u9762\u4e24\u4e2a\u8bbe\u5907\u865a\u62df\u6210\u4e00\u4e2a\u5e26\u7f13\u5b58\u7684\u5757\u8bbe\u5907\u3002 1. \u9996\u6b21\u521b\u5efaFlashcach\u8bbe\u5907 \u6ce8\uff1a\u8bf7\u5907\u4efd\u4f60\u7684\u6570\u636e\u5148\uff01\uff01\uff01\u7279\u522b\u662f\/dev\/sdb\uff0c\u8fd9\u4e2a\u8bbe\u5907\u4e0a\u7684\u6570\u636e\u5c06\u4f1a\u88ab\u6e05\u7a7a\uff1b\u7406\u8bba\u4e0a\/dev\/sda12\u4e0a\u7684\u6570\u636e\u4e0d\u4f1a\u6709\u4efb\u4f55\u4e22\u5931\u3002 \u9996\u5148\u786e\u4fddsda12\u6ca1\u6709\u88ab\u6302\u8f7d\uff0c\u5982\u679c\u6302\u8f7d\u4e86\uff0c\u4f7f\u7528umount\u5378\u8f7d\u4e4b\uff0c\u7136\u540e\u4f7f\u7528flashcache_create\u521b\u5efa\u8bbe\u5907\uff1a .\/flashcache_create cachedev \/dev\/sdb \/dev\/sda12 \u5982\u679c\u662fsudo\u5e10\u53f7\u53ef\u80fd\u4f1a\u9047\u5230\u5982\u4e0b\u7684\u62a5\u9519\uff1a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","inline_featured_image":false,"_tocer_settings":[],"footnotes":""},"categories":[27,6],"tags":[60],"class_list":["post-2527","post","type-post","status-publish","format-standard","hentry","category-linux","category-mysql","tag-flashcache"],"_links":{"self":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/2527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/comments?post=2527"}],"version-history":[{"count":12,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/2527\/revisions"}],"predecessor-version":[{"id":2686,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/2527\/revisions\/2686"}],"wp:attachment":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/media?parent=2527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/categories?post=2527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/tags?post=2527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}