﻿{"id":882,"date":"2014-04-09T17:18:40","date_gmt":"2014-04-09T09:18:40","guid":{"rendered":"http:\/\/notes.zerobox.org\/?p=882"},"modified":"2014-04-09T17:18:40","modified_gmt":"2014-04-09T09:18:40","slug":"%e6%8e%a2%e7%a7%98io%e9%98%9f%e5%88%97%e5%af%b9%e7%a3%81%e7%9b%98%e6%80%a7%e8%83%bd%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/882.html","title":{"rendered":"\u63a2\u79d8I\/O\u961f\u5217\u5bf9\u78c1\u76d8\u6027\u80fd\u7684\u5f71\u54cd"},"content":{"rendered":"<p>\u8f6c\u8f7d\u8bf7\u5728\u6587\u9996\u4fdd\u7559\u539f\u6587\u51fa\u5904\uff1aEMC\u4e2d\u6587\u652f\u6301\u8bba\u575bhttps:\/\/community.emc.com\/go\/chinese<br \/>\n\u4ecb\u7ecd<\/p>\n<p>\u4fe1\u606f\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6570\u636e\u901a\u5e38\u6682\u5b58\u4e8e\u78c1\u76d8\u961f\u5217\u3002\u5b9e\u9a8c\u8868\u660e\uff0c\u968f\u7740\u670d\u52a1\u5668\u6027\u80fd\u7684\u4e0d\u65ad\u63d0\u9ad8\uff0c\u78c1\u76d8I\/O\u961f\u5217\u5e38\u5e38\u6210\u4e3a\u5f71\u54cd\u78c1\u76d8\u54cd\u5e94\u901f\u5ea6\u7684\u9996\u8981\u74f6\u9888\u3002\u672c\u6587\u4ee5AIX\u7cfb\u7edf\u4e3a\u4f8b\uff0c\u63cf\u8ff0\u4e86I\/O\u961f\u5217\u5728\u78c1\u76d8\u4e2d\u7684\u5de5\u4f5c\u539f\u7406\u3001\u76d1\u6d4b\u547d\u4ee4\uff0c\u4ee5\u53ca\u5982\u4f55\u5bf9\u5176\u8fdb\u884c\u4f18\u5316\u4ee5\u63d0\u5347\u78c1\u76d8\u6027\u80fd\u3002<\/p>\n<p>\u4f7f\u7528I\/O\u961f\u5217\u7684\u610f\u4e49:<\/p>\n<p>\u4e3a\u4f55\u8981\u5bf9\u78c1\u76d8I\/O\u8fdb\u884c\u5e76\u884c\u5904\u7406\u5462\uff1f\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u8fd9\u4e00\u70b9\u5bf9\u4e8e\u591a\u7269\u7406\u78c1\u76d8\u7ec4\u6210\u7684\u865a\u62df\u78c1\u76d8\uff08\u6216LUN\uff09\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u5982\u679c\u4e00\u6b21\u63d0\u4ea4\u4e00\u4e2aI\/O\uff0c\u867d\u7136\u54cd\u5e94\u65f6\u95f4\u8f83\u77ed\uff0c\u4f46\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u5f88\u5c0f\u3002\u76f8\u6bd4\u8f83\u800c\u8a00\uff0c\u4e00\u6b21\u63d0\u4ea4\u591a\u4e2aI\/O\u65e2\u7f29\u77ed\u4e86\u78c1\u5934\u79fb\u52a8\u8ddd\u79bb\uff08\u901a\u8fc7\u7535\u68af\u7b97\u6cd5\uff09\uff0c\u540c\u65f6\u4e5f\u80fd\u591f\u63d0\u5347IOPS\u3002\u5047\u5982\u4e00\u90e8\u7535\u68af\u4e00\u6b21\u53ea\u80fd\u642d\u4e58\u4e00\u4eba\uff0c\u90a3\u4e48\u6bcf\u4e2a\u4eba\u4e00\u4f46\u4e58\u4e0a\u7535\u68af\uff0c\u5c31\u80fd\u5feb\u901f\u8fbe\u5230\u76ee\u7684\u5730\uff08\u54cd\u5e94\u65f6\u95f4\uff09\uff0c\u4f46\u9700\u8981\u8017\u8d39\u8f83\u957f\u7684\u7b49\u5f85\u65f6\u95f4\uff08\u961f\u5217\u957f\u5ea6\uff09\u3002\u56e0\u6b64\u4e00\u6b21\u5411\u78c1\u76d8\u7cfb\u7edf\u63d0\u4ea4\u591a\u4e2aI\/O\u80fd\u591f\u5e73\u8861\u541e\u5410\u91cf\u548c\u6574\u4f53\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n<p>\u7406\u8bba\u4e0a\uff0c\u78c1\u76d8\u7684IOPS\u53d6\u51b3\u4e8e\u961f\u5217\u957f\u5ea6\u00f7\u5e73\u5747IO\u54cd\u5e94\u65f6\u95f4\u3002\u5047\u8bbe\u961f\u5217\u957f\u5ea6\u4e3a3\uff0c\u5e73\u5747IO\u54cd\u5e94\u65f6\u95f4\u662f10ms\uff0c\u5219\u6700\u5927\u541e\u5410\u91cf\u662f300 IOPS\u3002<\/p>\n<p>IO\u961f\u5217\u4f4d\u4e8e\u4f55\u5904\uff1a<br \/>\n\u4ee5AIX\u7cfb\u7edf\u4e3a\u4f8b\uff0c\u4ece\u5e94\u7528\u5c42\u5230\u78c1\u76d8\u7269\u7406\u5c42\u7684IO\u5806\u6808\u5982\u4e0b\u6240\u793a\uff0cIO\u6309\u7167\u4ece\u4e0a\u81f3\u4e0b\u7684\u987a\u5e8f\u904d\u5386\u5806\u6808\uff1a<br \/>\n\u5e94\u7528\u7a0b\u5e8f\u5c42<br \/>\n\u6587\u4ef6\u7cfb\u7edf\u5c42\uff08\u53ef\u9009\uff09<br \/>\nLVM\u8bbe\u5907\u9a71\u52a8\u5c42\uff08\u53ef\u9009\uff09<br \/>\nSDD\u6216SDDPCM\u6216\u5176\u4ed6\u591a\u8def\u5f84\u9a71\u52a8\u5c42\uff08\u5982\u679c\u4f7f\u7528\uff09<br \/>\nhdisk\u8bbe\u5907\u9a71\u52a8\u5c42<br \/>\nadapter\u8bbe\u5907\u9a71\u52a8\u5c42<br \/>\n\u78c1\u76d8\u63a5\u53e3\u5c42<br \/>\n\u78c1\u76d8\u5b50\u7cfb\u7edf\u5c42<br \/>\n\u78c1\u76d8\u5c42<\/p>\n<p>AIX\u5728\u6bcf\u4e00\u5c42\u5806\u6808\u90fd\u4f1a\u76d1\u6d4bIO\uff0c\u56e0\u6b64\u5806\u6808\u7684\u6bcf\u4e00\u5c42\u90fd\u6709IO\u961f\u5217\u3002\u901a\u5e38\uff0c\u5982\u679c\u5f53\u524d\u5404\u5c42\u6267\u884c\u7684IO\u8d85\u8fc7\u4e86\u961f\u5217\u957f\u5ea6\u6240\u9650\u5236\u7684\u6700\u5927\u6570\u91cf\uff0c\u8fd9\u4e9bIO\u5c06\u6682\u5b58\u4e8e\u7b49\u5f85\u961f\u5217\u4e2d\uff0c\u76f4\u81f3\u83b7\u53d6\u7533\u8bf7\u8d44\u6e90\u3002\u5728\u6587\u4ef6\u7cfb\u7edf\u5c42\uff0c\u6587\u4ef6\u7cfb\u7edf\u7f13\u5b58\u9650\u5236\u4e86\u5404\u6587\u4ef6\u7cfb\u7edf\u7684\u6700\u5927\u53ef\u6267\u884cIO\u6570\u91cf\u3002LVM\u8bbe\u5907\u9a71\u52a8\u5c42\uff0c\u53ef\u6267\u884c\u7684\u6700\u5927IO\u6570\u91cf\u53d7hdisk\u7f13\u5b58\u7684\u9650\u5236\u3002\u5728SDD\u5c42\uff0c\u5982\u679cdpo\u8bbe\u5907\u7684qdepth_enable\u5c5e\u6027\u8bbe\u7f6e\u6210yes\uff0c\u5219\u4f1a\u5efa\u7acbIO\u961f\u5217\uff0c\u4f46\u4e5f\u6709\u4e9b\u7248\u672c\u65e0\u6cd5\u8bbe\u7f6e\u961f\u5217\u3002SDDPCM\u5728\u5c06IO\u53d1\u9001\u81f3\u78c1\u76d8\u8bbe\u5907\u9a71\u52a8\u5c42\u4e4b\u524d\u6ca1\u6709\u8fdb\u884c\u961f\u5217\u5904\u7406\u3002hdisk\u901a\u8fc7queue_depth\u53c2\u6570\u8bbe\u7f6e\u6700\u5927\u54cd\u5e94IO\u6570\u91cf\uff0c \u800cFC\u9002\u914d\u5c42\u7684\u53c2\u6570\u4e3anum_cmd_elems\u3002\u78c1\u76d8\u5b50\u7cfb\u7edf\u5c42\u6709IO\u961f\u5217\uff0c\u5355\u5757\u7269\u7406\u78c1\u76d8\u53ef\u63a5\u6536\u591a\u4e2aIO\u8bf7\u6c42\u4f46\u4e00\u6b21\u53ea\u80fd\u5904\u7406\u4e00\u4e2aIO\u3002<\/p>\n<p>IO\u961f\u5217\u76d1\u6d4b\u547d\u4ee4\uff1a<\/p>\n<p>\u4ee5AIX\u4e3a\u4f8b\uff0cAIX 5.3\u53ca\u4ee5\u4e0a\u7248\u672c\uff0c\u53ef\u7528iostat\u548csar \u2013d\u547d\u4ee4\u76d1\u6d4bhdisk\u961f\u5217\uff0ciostat -D\u547d\u4ee4\u8f93\u51fa\u5982\u4e0b\uff1a<br \/>\nhdisk6 xfer: %tm_act bps tps bread bwrtn<br \/>\n4.7 2.2M 19.0 0.0 2.2M<br \/>\nread: rps avgserv minserv maxserv timeouts fails<br \/>\n0.0 0.0 0.0 0.0 0 0<br \/>\nwrite: wps avgserv minserv maxserv timeouts fails<br \/>\n19.0 38.9 1.1 190.2 0 0<br \/>\nqueue: avgtime mintime maxtime avgwqsz avgsqsz sqfull<br \/>\n15.0 0.0 83.7 0.0 0.0 136<\/p>\n<p>\u8fd9\u91cc\uff0cavgwqsz\u662f\u5e73\u5747\u7b49\u5f85\u961f\u5217\u957f\u5ea6\uff0cavgsqsz\u662f\u5e73\u5747\u54cd\u5e94\u961f\u5217\u957f\u5ea6\u3002\u5728\u7b49\u5f85\u961f\u5217\u4e2d\u82b1\u8d39\u7684\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\u662favgtime\u3002sqfull\u503c\u4ee3\u8868\u6bcf\u79d2\u949f\u5411\u5df2\u6ee1\u961f\u5217\u63d0\u4ea4\u7684IO\u6570\u3002\u5bf9\u4e8e\u6709cache\u7684\u78c1\u76d8\u5b50\u7cfb\u7edf\uff0cIO\u54cd\u5e94\u65f6\u95f4\u4f1a\u6709\u6240\u4e0d\u540c\u3002iostat \u2013D\u547d\u4ee4\u663e\u793a\u7684\u662f\u7cfb\u7edf\u4ece\u542f\u52a8\u540e\u7684\u7edf\u8ba1\u6570\u636e\u3002<\/p>\n<p>\u4ece\u5e94\u7528\u7a0b\u5e8f\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u5904\u7406IO\u7684\u603b\u65f6\u95f4\u662f\u54cd\u5e94\u65f6\u95f4\u52a0\u4e0a\u5728hdisk\u7b49\u5f85\u961f\u5217\u4e2d\u7684\u65f6\u95f4\u3002<br \/>\nsar \u2013d\u547d\u4ee4\u8f93\u51fa\u5982\u4e0b\uff1a<br \/>\n16:50:59     device    %busy    avque    r+w\/s    Kbs\/s   avwait   avserv<br \/>\n16:51:00     hdisk1      0      0.0        0        0      0.0      0.0<br \/>\n                    hdisk0      0      0.0        0        0      0.0      0.0<br \/>\navwait\u548cavserv\u5206\u522b\u662f\u82b1\u8d39\u5728\u7b49\u5f85\u961f\u5217\u548c\u54cd\u5e94\u961f\u5217\u7684\u65f6\u95f4\uff0cavque\u5728AIX 5.3\u4ee5\u4e0a\u7248\u672c\u4e2d\uff0c\u4ee3\u8868\u7b49\u5f85\u961f\u5217\u4e2d\u7684\u5e73\u5747IO\u6570\u91cf\u3002<\/p>\n<p>\u4f18\u5316\u65b9\u6cd5\uff1a<\/p>\n<p>\u9996\u5148\uff0c\u4e0d\u5e94\u76f2\u76ee\u589e\u52a0\u4ee5\u4e0a\u961f\u5217\u53c2\u6570\u503c\u3002\u8fd9\u6837\u6709\u53ef\u80fd\u9020\u6210\u78c1\u76d8\u5b50\u7cfb\u7edf\u8fc7\u8f7d\u6216\u5728\u542f\u52a8\u65f6\u5f15\u8d77\u8bbe\u5907\u914d\u7f6e\u62a5\u9519\u3002\u56e0\u6b64\uff0c\u4ec5\u589e\u52a0hdisk\u7684queue_depths\u503c\u5e76\u4e0d\u662f\u6700\u597d\u7684\u65b9\u6cd5\uff0c\u800c\u5e94\u8be5\u540c\u65f6\u8c03\u6574\u53ef\u63d0\u4ea4\u6700\u5927IO\u6570\u91cf\u3002\u5f53queue_depths\u548c\u53d1\u9001\u81f3\u78c1\u76d8\u5b50\u7cfb\u7edf\u7684IO\u6570\u91cf\u540c\u65f6\u589e\u52a0\u65f6\uff0cIO\u54cd\u5e94\u65f6\u95f4\u53ef\u80fd\u4f1a\u589e\u52a0\uff0c\u4f46\u540c\u65f6\u541e\u5410\u91cf\u4e5f\u5f97\u5230\u4e86\u63d0\u5347\u3002\u5f53IO\u54cd\u5e94\u65f6\u95f4\u63a5\u8fd1\u78c1\u76d8\u8d85\u65f6\u65f6\u95f4\uff0c\u5219\u8bf4\u660e\u6240\u63d0\u4ea4IO\u8d85\u8fc7\u4e86\u78c1\u76d8\u80fd\u591f\u5904\u7406\u7684\u754c\u9650\u3002\u5982\u679c\u770b\u5230IO\u8d85\u65f6\u5e76\u5728\u9519\u8bef\u65e5\u5fd7\u4e2d\u62a5\u51faIO\u65e0\u6cd5\u5b8c\u6210\uff0c\u8bf4\u660e\u53ef\u80fd\u6709\u786c\u4ef6\u95ee\u9898\uff0c\u6216\u9700\u8981\u7f29\u77ed\u961f\u5217\u3002<\/p>\n<p>\u8c03\u6574queue_depths\u7684\u4e00\u6761\u6cd5\u5219\u662f\uff1a\u5bf9\u4e8e\u968f\u673a\u8bfb\u5199\u6216\u961f\u5217\u672a\u6ee1\u7684\u60c5\u51b5\uff0c\u5982\u679cIO\u54cd\u5e94\u65f6\u95f4\u8d85\u8fc715ms\uff0c\u5c31\u4e0d\u80fd\u518d\u589e\u52a0queue_depths\u503c\u3002\u4e00\u65e6IO\u54cd\u5e94\u65f6\u95f4\u589e\u52a0\uff0c\u74f6\u9888\u5c31\u4ece\u78c1\u76d8\u548cadapter\u961f\u5217\u8f6c\u79fb\u81f3\u78c1\u76d8\u5b50\u7cfb\u7edf\u3002\u8c03\u6574\u961f\u5217\u957f\u5ea6\u5e94\u4f9d\u636e\uff1a1\uff09\u5b9e\u9645\u5e94\u7528\u7a0b\u5e8f\u4ea7\u751f\u7684IO\u8bf7\u6c42\u6570\uff0c2\uff09\u4f7f\u7528\u6d4b\u8bd5\u5de5\u5177\u4ee5\u89c2\u5bdf\u78c1\u76d8\u5b50\u7cfb\u7edf\u7684\u5904\u7406\u80fd\u529b\u3002\u5176\u4e2d\uff0c1\uff09\u4e3a\u4e3b\u8981\u4f9d\u636e\u3002<\/p>\n<p>IO\u961f\u5217\u6709\u4ee5\u4e0b\u56db\u79cd\u72b6\u6001\uff1a<br \/>\n\u961f\u5217\u5df2\u6ee1\uff0cIO\u7b49\u5728hdisk\u6216adapter\u9a71\u52a8\u5c42<br \/>\n\u961f\u5217\u672a\u6ee1\uff0cIO\u54cd\u5e94\u65f6\u95f4\u77ed<br \/>\n\u961f\u5217\u672a\u6ee1\uff0cIO\u54cd\u5e94\u65f6\u95f4\u957f<br \/>\n\u961f\u5217\u672a\u6ee1\uff0cIO\u63d0\u4ea4\u901f\u5ea6\u5feb\u4e8e\u5b58\u50a8\u5904\u7406\u901f\u5ea6\u5e76\u5bfc\u81f4IO\u4e22\u5931<\/p>\n<p>\u6211\u4eec\u9700\u8981\u628a\u961f\u5217\u8c03\u6574\u4e3a2\u62163\u7684\u72b6\u6001\u3002\u60c5\u51b53\u8868\u660e\u74f6\u9888\u4e0d\u5728hdisk\u9a71\u52a8\u5c42\uff0c\u800c\u5f88\u6709\u53ef\u80fd\u5728\u78c1\u76d8\u5b50\u7cfb\u7edf\u81ea\u8eab\uff0c\u4e5f\u6709\u53ef\u80fd\u4f4d\u4e8eadapter\u9a71\u52a8\u5c42\u6216SAN\u3002<\/p>\n<p>\u7b2c4\u79cd\u60c5\u51b5\u662f\u5e94\u8be5\u907f\u514d\u7684\u3002\u53d7\u9650\u4e8e\u5b58\u50a8IO\u8bf7\u6c42\u548c\u6570\u636e\u7684\u5185\u5b58\u5927\u5c0f\uff0c\u6240\u6709\u78c1\u76d8\u548c\u78c1\u76d8\u5b50\u7cfb\u7edf\u90fd\u6709IO\u6267\u884c\u6570\u91cf\u7684\u9650\u5236\u3002\u5f53\u5b58\u50a8\u4e22\u5931IO\u65f6\uff0c\u4e3b\u673a\u7aef\u8d85\u65f6\uff0cIO\u5c06\u88ab\u91cd\u65b0\u63d0\u4ea4\uff0c\u540c\u65f6\u7b49\u5f85\u8be5IO\u7684\u4e8b\u4ef6\u5c06\u88ab\u6682\u505c\u3002CPU\u4e3a\u4e86\u5904\u7406IO\u591a\u505a\u4e86\u5f88\u591a\u4e8b\u60c5\uff0c\u8fd9\u79cd\u60c5\u51b5\u5e94\u8be5\u907f\u514d\u3002\u5982\u679cIO\u6700\u7ec8\u5931\u8d25\uff0c\u5c06\u4f1a\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u6216\u66f4\u4e25\u91cd\u7684\u7ed3\u679c\u3002\u6240\u4ee5\u5fc5\u987b\u4ed4\u7ec6\u786e\u8ba4\u5b58\u50a8\u7684\u5904\u7406\u6781\u9650\u3002<\/p>\n<p>\u5408\u7406\u7684\u5e73\u5747IO\u54cd\u5e94\u65f6\u95f4\uff1a<\/p>\n<p>\u5047\u8bbe\u961f\u5217\u4e2d\u6ca1\u6709IO\uff0c\u4e00\u6b21\u8bfb\u64cd\u4f5c\u5c06\u4f1a\u5360\u636e0\u81f315ms\uff0c\u53d6\u51b3\u4e8e\u5bfb\u5740\u65f6\u95f4\uff0c\u78c1\u76d8\u8f6c\u901f\uff0c\u4ee5\u53ca\u6570\u636e\u4f20\u8f93\u65f6\u95f4\u3002\u4e4b\u540e\u6570\u636e\u4ece\u5b58\u50a8\u79fb\u52a8\u81f3\u4e3b\u673a\u3002\u6709\u65f6\u6570\u636e\u4f4d\u4e8e\u78c1\u76d8\u8bfb\u7f13\u5b58\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0bIO\u54cd\u5e94\u65f6\u95f4\u7ea6\u4e3a1ms\u3002\u5bf9\u4e8e\u5927\u578b\u78c1\u76d8\u7cfb\u7edf\u5728\u6b63\u5e38\u5de5\u4f5c\u72b6\u6001\u4e0b\uff0c\u5e73\u5747IO\u54cd\u5e94\u65f6\u95f4\u7ea6\u4e3a5-10ms\u3002\u5f53\u968f\u673a\u8bfb\u53d6\u5c0f\u6570\u636e\u8017\u65f6\u8d85\u8fc715ms\u65f6\uff0c\u8868\u660e\u5b58\u50a8\u8f83\u4e3a\u7e41\u5fd9\u3002<\/p>\n<p>\u5199\u64cd\u4f5c\u901a\u5e38\u5c06\u6570\u636e\u5199\u5165cache\u4e2d\uff0c\u5e73\u5747\u8017\u65f6\u4e0d\u52302.5ms\u3002\u4f46\u662f\u4e5f\u6709\u4f8b\u5916\uff1a\u5982\u679c\u5b58\u50a8\u540c\u6b65\u5c06\u6570\u636e\u955c\u50cf\u81f3\u8fdc\u7aef\uff0c\u5199\u64cd\u4f5c\u5c06\u8017\u8d39\u66f4\u957f\u65f6\u95f4\u3002\u5982\u679c\u5199\u5165\u6570\u636e\u91cf\u8f83\u5927\uff08\u591a\u4e8e64KB\uff09\u5219\u6570\u636e\u4f20\u8f93\u65f6\u95f4\u4f1a\u663e\u8457\u589e\u52a0\u3002\u6ca1\u6709cache\u7684\u60c5\u51b5\u4e0b\uff0c\u5199\u65f6\u95f4\u7684\u8bfb\u65f6\u95f4\u5dee\u4e0d\u591a\u3002<\/p>\n<p>\u5982\u679cIO\u662f\u5927\u5757\u987a\u5e8f\u8bfb\u5199\uff0c\u9664\u4e86\u4f20\u8f93\u65f6\u95f4\u8f83\u957f\uff0cIO\u4f1a\u6682\u5b58\u4e8e\u78c1\u76d8\u7269\u7406\u5c42\u961f\u5217\uff0cIO\u54cd\u5e94\u65f6\u95f4\u8fdc\u9ad8\u4e8e\u5e73\u5747\u503c\u3002\u4f8b\u5982\uff1a\u5e94\u7528\u63d0\u4ea450\u4e2aIO(50\u4e2a64KB\u987a\u5e8f\u8bfb)\uff0c\u6700\u521d\u51e0\u4e2aIO\u4f1a\u83b7\u5f97\u8f83\u5feb\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u800c\u6700\u540e\u4e00\u4e2aIO\u5fc5\u987b\u7b49\u5f85\u5176\u4ed649\u4e2a\u5b8c\u6210\uff0c\u4ece\u800c\u8017\u8d39\u5f88\u957f\u7684\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f6c\u8f7d\u8bf7\u5728\u6587\u9996\u4fdd\u7559\u539f\u6587\u51fa\u5904\uff1aEMC\u4e2d\u6587\u652f\u6301\u8bba\u575bhttps:\/\/community. &hellip;<\/p>\n<p class=\"read-more\"><a href=\"http:\/\/zerobox.org\/notes\/882.html\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[221],"class_list":["post-882","post","type-post","status-publish","format-standard","hentry","tag-io"],"views":572,"_links":{"self":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/comments?post=882"}],"version-history":[{"count":0,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/882\/revisions"}],"wp:attachment":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/media?parent=882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/categories?post=882"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/tags?post=882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}