{"id":670,"date":"2017-11-17T14:00:32","date_gmt":"2017-11-17T10:00:32","guid":{"rendered":"https:\/\/provolotski.wordpress.com\/?p=670"},"modified":"2017-11-17T14:00:32","modified_gmt":"2017-11-17T10:00:32","slug":"%d0%bf%d1%80%d0%be%d0%b1%d0%bb%d0%b5%d0%bc%d0%b0-%d0%b1%d0%be%d0%bb%d1%8c%d1%88%d0%b8%d1%85-wait%d0%be%d0%b2-db-file-async-i-o-submit-wait","status":"publish","type":"post","link":"https:\/\/provolotski.by\/?p=670","title":{"rendered":"\u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0431\u043e\u043b\u044c\u0448\u0438\u0445 wait&#8217;\u043e\u0432 db file async I\/O submit wait"},"content":{"rendered":"<p>\u041f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0442\u0440\u0443\u0434\u043e\u0435\u043c\u043a\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0438, \u043f\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u041d\u0421\u0418, \u0432\u0440\u0435\u043c\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u0430\u0434\u0430\u043d\u0438\u0439 \u043e\u043a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0431\u043e\u043b\u0435\u0435 \u043e\u0436\u0438\u0434\u0430\u0435\u043c\u043e\u0433\u043e. \u0412 AWR&#8217;\u043a\u0430\u0445 \u0443\u0432\u0438\u0434\u0435\u043b\u0438 \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u044f \u0434\u043b\u044f<br \/>\nSystem I\/O db file async I\/O submit wait, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0437\u0430\u043d\u0438\u043c\u0430\u043b\u043e \u0441\u0432\u044b\u0448\u0435 200% \u0432\u0440\u0435\u043c\u0435\u043d\u0438.<\/p>\n<p><!--more--><\/p>\n<p>\u041f\u043e\u0441\u043b\u0435 \u043a\u0443\u0440\u0435\u043d\u0438\u044f support&#8217;\u0430 \u043f\u043e\u044f\u0432\u0438\u043b\u043e\u0441\u044c \u043e\u0449\u0443\u0449\u0435\u043d\u0438\u0435 \u043e \u0437\u0430\u043f\u0440\u0435\u0442\u0435 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0444\u0430\u0439\u043b\u0430\u043c \u0434\u0430\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u043d\u043e\u0434.<br \/>\n\u041f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c:<\/p>\n<pre>SQL&gt; select filetype_name,filetype_id,asynch_io from v$iostat_file;\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nOther                                  0 ASYNC_OFF\nControl File                           1 ASYNC_OFF\nLog File                               3 ASYNC_OFF\nArchive Log                            4 ASYNC_OFF\nData File Backup                       9 ASYNC_OFF\nData File Incremental Backup          10 ASYNC_OFF\nArchive Log Backup                    11 ASYNC_OFF\nData File Copy                        12 ASYNC_OFF\nFlashback Log                         17 ASYNC_OFF\nData Pump Dump File                   18 ASYNC_OFF\nExternal Table                        34 ASYNC_OFF\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_OFF\nTemp File                              6 ASYNC_OFF\nData File                              2 ASYNC_OFF\nTemp File                              6 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\nData File                              2 ASYNC_OFF\n\n41 rows selected.\n<\/pre>\n<p>\u0442\u0430\u043a\u0438 \u0434\u0430, \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u0437\u0430\u043a\u0440\u044b\u0442<br \/>\n\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b<\/p>\n<pre>SQL&gt; SHOW PARAMETER FILESYSTEMIO_OPTIONS\n\nNAME                                 TYPE        VALUE\n------------------------------------ ----------- ------------------------------\nfilesystemio_options                 string      none\n\n<\/pre>\n<p>\u043c\u0435\u043d\u044f\u0435\u043c \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/p>\n<pre>SQL&gt; ALTER SYSTEM SET FILESYSTEMIO_OPTIONS=SETALL SCOPE=SPFILE;\n\nSystem altered.\n\nSQL&gt; exit\n\n<\/pre>\n<p>\u041f\u0435\u0440\u0435\u0433\u0440\u0443\u0436\u0430\u0435\u043c \u0431\u0430\u0437\u0443, \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f:<\/p>\n<pre>SQL&gt; select filetype_name,filetype_id,asynch_io from v$iostat_file;\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nOther                                  0 ASYNC_OFF\nControl File                           1 ASYNC_OFF\nLog File                               3 ASYNC_OFF\nArchive Log                            4 ASYNC_OFF\nData File Backup                       9 ASYNC_OFF\nData File Incremental Backup          10 ASYNC_OFF\nArchive Log Backup                    11 ASYNC_OFF\nData File Copy                        12 ASYNC_OFF\nFlashback Log                         17 ASYNC_OFF\nData Pump Dump File                   18 ASYNC_OFF\nExternal Table                        34 ASYNC_OFF\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_ON\nTemp File                              6 ASYNC_ON\nData File                              2 ASYNC_ON\nTemp File                              6 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\n\nFILETYPE_NAME                FILETYPE_ID ASYNCH_IO\n---------------------------- ----------- ---------\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\nData File                              2 ASYNC_ON\n\n41 rows selected.\n<\/pre>\n<p>\u0412 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0437\u0430\u0434\u0430\u043d\u0438\u0439 \u043f\u043e\u0432\u044b\u0441\u0438\u043b\u0430\u0441\u044c \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0432 \u0442\u0440\u0438 \u0440\u0430\u0437\u0430<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u041f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0442\u0440\u0443\u0434\u043e\u0435\u043c\u043a\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0438, \u043f\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u041d\u0421\u0418, \u0432\u0440\u0435\u043c\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u0430\u0434\u0430\u043d\u0438\u0439 \u043e\u043a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0431\u043e\u043b\u0435\u0435 \u043e\u0436\u0438\u0434\u0430\u0435\u043c\u043e\u0433\u043e. \u0412 AWR&#8217;\u043a\u0430\u0445 \u0443\u0432\u0438\u0434\u0435\u043b\u0438 \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u044f \u0434\u043b\u044f System I\/O db file async I\/O submit wait, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0437\u0430\u043d\u0438\u043c\u0430\u043b\u043e \u0441\u0432\u044b\u0448\u0435 200% \u0432\u0440\u0435\u043c\u0435\u043d\u0438.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-670","post","type-post","status-publish","format-standard","hentry","category-oracle"],"_links":{"self":[{"href":"https:\/\/provolotski.by\/index.php?rest_route=\/wp\/v2\/posts\/670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/provolotski.by\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/provolotski.by\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/provolotski.by\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/provolotski.by\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=670"}],"version-history":[{"count":0,"href":"https:\/\/provolotski.by\/index.php?rest_route=\/wp\/v2\/posts\/670\/revisions"}],"wp:attachment":[{"href":"https:\/\/provolotski.by\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/provolotski.by\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/provolotski.by\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}