{"id":63,"date":"2014-11-04T17:36:09","date_gmt":"2014-11-04T09:36:09","guid":{"rendered":"http:\/\/blog.haostudio.net\/hwp\/?p=63"},"modified":"2017-07-25T00:21:55","modified_gmt":"2017-07-24T16:21:55","slug":"%e5%9c%a8freebsd-%e5%bb%ba%e7%ab%8b-zfs-%e8%a8%98%e9%8c%84","status":"publish","type":"post","link":"https:\/\/blog.haostudio.net\/hwp\/%e5%9c%a8freebsd-%e5%bb%ba%e7%ab%8b-zfs-%e8%a8%98%e9%8c%84\/","title":{"rendered":"\u5728FreeBSD \u4f7f\u7528Advanced Format \u786c\u789f\u5efa\u7acb ZFS"},"content":{"rendered":"\n

\u5728FreeBSD \u4f7f\u7528Advanced Format \u786c\u789f\u5efa\u7acb ZFS<\/h2>\n

Advanced Format HDD in ZFS<\/h3>\n

\u7531\u65bc\u73fe\u5728\u7684\u65b0\u8cfc\u5165\u7684\u786c\u789f\u5e7e\u4e4e\u90fd\u662fAdvanced Format \u7684\u786c\u789f, \u9019\u7a2e\u786c\u789f1 sector = 4096 bytes. (\u50b3\u7d71\u7684\u786c\u789f\u662f 1 sector = 512 bytes) , \u82e5\u8b93\u65b0\u786c\u789f\u6a21\u64ec\u50b3\u7d71\u786c\u789f\u7684\u65b9\u5f0f\u4f86\u64cd\u4f5c, \u9019\u6703\u8b93\u786c\u789f\u7684\u6548\u7387\u53ca\u58fd\u547d\u90fd\u5927\u6253\u6298\u6263.<\/p>\n

\u76ee\u524d\u5927\u90e8\u4efd\u7684\u4f5c\u696d\u7cfb\u7d71, \u5982Windows, MAC OSX, Linux…\u90fd\u5df2\u7d93\u652f\u63f4\u4e86Advanced Format \u786c\u789f. \u4f46\u662f\u504f\u504f\u6211\u7684File Server \u662fFreeBSD, \u4e14File system \u662f\u63a1\u7528ZFS.<\/p>\n

\u76ee\u524d\u7684ZFS \u4e2d\u6700\u5c0f\u7684\u5b58\u53d6\u55ae\u5143\u662f\u53ef\u4ee5\u7531\u4f7f\u7528\u8005\u4f86\u6c7a\u5b9a\u7684. \u5176\u5229\u7528\u4e00\u500b\u53c3\u6578\u53eb\u505aashift \u4f86\u6c7a\u5b9a\u6700\u5c0f\u7684\u5b58\u53d6\u55ae\u4f4d. \u800cashift default value = 9, \u5373\u6700\u5c0f\u7684\u5b58\u53d6\u55ae\u4f4d\u662f 2 ^ 9 = 512 bytes. \u525b\u597d\u7b26\u5408\u50b3\u7d71\u7684\u786c\u789f1 sector \u7684size.<\/p>\n

\u82e5\u8981\u8b93ZFS \u652f\u63f4Advanced Format HDD \u7684\u65b9\u6cd5\u5c31\u662f\u5c07ashift \u503c\u6539\u70ba12 (2 ^ 12 = 4096 bytes). \u6ce8\u610f! ashift \u7684\u503c\u662f\u5728\u5efa\u7acbzpool \u6642\u5f8c\u81ea\u52d5\u6aa2\u67e5device \u6642\u6c7a\u5b9a, \u800c\u4e14\u4e00\u65e6\u6c7a\u5b9a\u597d\u4e4b\u5f8c, \u4e0d\u80fd\u88ab\u4fee\u6539\u4e86.<\/p>\n

\u554f\u984c\u4f86\u4e86, \u7576\u6211\u5011\u5efa\u7acbzpool \u6642, \u4f7f\u7528\u5982\u4e0b\u7684\u6307\u4ee4<\/p>\n

#zpool create fspool raidz \/dev\/ada0 \/dev\/ada1 \/dev\/ada2\n<\/code><\/pre>\n
zpool \u6703\u6aa2\u67e5\/dev\/ada0, \/dev\/ada1, \/dev\/ada2 \u4e26\u5c07ashift \u8a2d\u70ba9, \u90a3\u5c31\u4e0d\u7b26\u5408\u6211\u5011\u7684\u671f\u5f85\u4e86.<\/p>\n
\u6240\u4ee5\u6211\u5011\u5fc5\u9808\u6539\u7528\u53e6\u4e00\u500b\u4f5c\u6cd5\u4f86\u5efa\u7acbzpool<\/p>\n
\u9996\u5148\u7528gnop \u5c0d\u65bc\u786c\u789f ada0 ~ ada2 \u5efa\u7acbsector \u70ba4k \u7684\u865b\u64ec GEMO classes.<\/p>\n
#gnop create -S 4096 \/dev\/ada0\n#gnop create -S 4096 \/dev\/ada1\n#gnop create -S 4096 \/dev\/ada2\n<\/code><\/pre>\n
\u9019\u6642\u6703\u7522\u751f\/dev\/ada0.nop, \/dev\/ada1.nop \u53ca\/dev\/ada2.nop<\/p>\n
\u7136\u5f8c\u4f7f\u7528ada0.nop, ada1.nop ada2.nop \u5efa\u7acbzpool<\/p>\n
#zpool create fspool raidz \/dev\/ada0.nop \/dev\/ada1.nop \/dev\/ada2.nop\n<\/code><\/pre>\n
\u9019\u6642fspool \u7684ashift \u503c\u61c9\u8a72\u662f12\u4e86<\/p>\n
#zdb fspool | grep ashift\n     ashift: 12\n<\/code><\/pre>\n
\u7136\u5f8c\u5c07fspool \u532f\u51fa, \u522a\u9664\/dev\/ada0.nop \/dev\/ada1.nop \/dev\/ada2.nop, \u7136\u5f8c\u518d\u532f\u5165fspool<\/p>\n
#zpool export fspool\n#gnop destroy \/dev\/ada0.nop\n#gnop destroy \/dev\/ada1.nop\n#gnop destroy \/dev\/ada2.nop\n#zpool import fspool\n<\/code><\/pre>\n
zpool \u5728\u5efa\u7acb\u6642, \u6703\u4ee5device \u4e2d\u6700\u5927\u7684sector size \u4f86\u7576\u4f5cashift \u7684\u8a2d\u5b9a\u503c, \u6240\u4ee5\u4e0a\u4f8b\u4e2d, \u61c9\u8a72\u53ea\u8981\u4e00\u500bHDD \u7684GEMO \u70ba4K \u5c31\u53ef\u4ee5\u4e86, \u53ef\u4ee5\u4e0d\u9700\u8981\u5168\u90e8\u90fd\u8a2d\u62104K.<\/p>\n
\n
\u53c3\u8003\u8cc7\u6599<\/h3>\n
    \n
  1. \u5148\u9032\u683c\u5f0f\u5316<\/a><\/li>\n
  2. ZFS with Advanced Format (4k sector) Drives<\/a><\/li>\n
  3. FreeBSD and 4k sector drives<\/a><\/li>\n
  4. FreeBSD ZFS: Advanced format (4k) drives and you<\/a><\/li>\n
  5. Installing FreeBSD 9.0 (or later) Root on ZFS using GPT<\/a><\/li>\n
  6. WD Advanced Format Drive speed issues on ZFS<\/a><\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,29],"tags":[30,18],"class_list":["post-63","post","type-post","status-publish","format-standard","hentry","category-freebsd","category-zfs-2","tag-advanced-format","tag-zfs"],"_links":{"self":[{"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/posts\/63","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/comments?post=63"}],"version-history":[{"count":7,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/posts\/63\/revisions"}],"predecessor-version":[{"id":413,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/posts\/63\/revisions\/413"}],"wp:attachment":[{"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/media?parent=63"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/categories?post=63"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.haostudio.net\/hwp\/wp-json\/wp\/v2\/tags?post=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}