Oracle IO ²âÊÔ¹¤¾ßORION
Ò»Ö±ÏëѧϰÈçºÎµÃµ½Êý¾Ý¿âµÄIOÊý¾Ý£¬ORIONÊÇÒ»¸ö²»´íµÄ·ÂÕæ²âÊÔOracle IOµÄ¹¤¾ß¡£
ÏÂÃæÊÇÎҵIJâÊԵIJ½Ö裺
1 ´ÓoracleµÄÍøÕ¾ÉÏÏÂÔØORIONµÄÈí¼þ£¨11.1.0.7£©
2 ½âѹorion_linux_x86-64.gz
3 ½¨Á¢²ÎÊýÎļþ mytest.lun£¬ ÕâÀïµÄÁгöµÄÊÇ·ÖÇøÉ豸£¬ÎÒÔÚÉÏÃæ½¨Á¢ÁËasmÎļþϵͳ¡£ÒòΪÓÐÊý¾ÝÔÚÀïÃæ£¬ËùÒÔÎÒÓÃwrite=0Ö»²âÊÔ¶ÁµÄIOs
/dev/sda5
/dev/sdb1
/dev/sdc1
/dev/sdd1
4. ÔËÐÐÃüÁî
./orion_linux_x86-64 -run simple -testname mytest -num_disks 4
5 Éú³É±¨¸æÎļþ£º mytest_20100426_1608_summary.txt
ORION VERSION 11.1.0.7.0
Commandline:
-run simple -testname mytest -num_disks 4
This maps to this test:
Test: mytest
Small IO size: 8 KB
Large IO size: 1024 KB
IO Types: Small Random IOs, Large Random IOs
Simulated Array Type: CONCAT
Write: 0%
Cache Size: Not Entered
Duration for each Data Point: 60 seconds
Small Columns:, 0
Large Columns:, 0, 1, 2, 3, 4, 5, 6, 7,
8
Total Data Points: 29
Name: /dev/sda5 Size: 102404703744
Name: /dev/sdb1 Size: 102404703744
Name: /dev/sdc1 Size: 102404703744
Name: /dev/sdd1 Size: 102404703744
4 FILEs found.
Maximum Large MBPS=62.98 @ Small=0 and Large=7
Maximum Small IOPS=648 @ Small=20 and Large=0
Minimum Small Latency=7.35 @ Small=1 and Large=0
6 ¿ÉÒÔ¿´µ½×î´óµÄIOPSÊÇ648£¬Ã¿¸ödisk´ó¸Å162£¬×î´óµÄMBPSÊÇ62M¡£
Ïà¹ØÎĵµ£º
oracle grant
ÊÚȨÓï¾ä--select * from dba_users; ²éѯÊý¾Ý¿âÖеÄËùÓÐÓû§
--alter user TEST_SELECT account lock; Ëø×¡Óû§
--alter user TEST_SELECT account unlock; ¸øÓû§½âËø
--create user xujin identified by xujin; ½¨Á¢Óû§
--grant create tablespace to xujin; ÊÚȨ
--grant select ......
•ºÎΪÉó¼Æ
Êý¾Ý¿âÉ󼯣¬¾ÍÊǶÔÊý¾Ý¿âµÄ»î¶¯×ö¸ú×ټǼ£¬Ö÷Òª°üÀ¨Êý¾Ý¿âÁ¬½Ó£¬SQLÓï¾äÖ´ÐУ¬Êý¾Ý¿â¶ÔÏó·ÃÎÊÕâЩ·½ÃæµÄ¸ú×ټǼ¡£
•ÏÖʵ×÷ÓÃ
°²È«¿ØÖÆ¡¢¸ú×ÙÊý¾Ý±ä»¯¡¢³ÌÐòBUGµ÷ÊÔ¡¢×Ô¶¨ÒåµÄÊý¾Ý»ã×Ü·ÖÎö¡¢²Ù×÷ÈÕÖ¾
•´æ´¢·½Ê½
Ò»ÖÖÊÇ´æ´¢ÔÚ²Ù×÷ϵͳÎļþÖУ¬Ò»ÖÖÊÇ´æ´¢ÔÚsystem±í¿Õ¼äÖеÄSYS.AUD$±íÖÐ
......
ÔÚSQL*PlusÖУº£¨1£©ÈçºÎÌí¼Óɾ³ýÊý¾Ý¿â£¿£¨2£©Êý¾Ý¿â¾ÍÊDZíÂ𣿣¿£¨3£©ÈçºÎ´´½¨±í¿Õ¼ä£¿£¨4£©ÈçºÎ´´½¨Óû§£¿£¨5£©ÊDz»ÊÇÒ»¸ö±í¿Õ¼äÖ»ÄÜ´´½¨Ò»¸öÓû§£¿£¨6£©ÔõÑù´Ó¿Í»§¶Ë·ÃÎÊÊý¾Ý¿â·þÎñÆ÷µÄÅäÖã¿
¡¡¡¡
¡¡¡¡»Ø´ð£º
¡¡¡¡1¡¢ºÎÌí¼Óɾ³ýÊý¾Ý¿â£¿Ã»ÕâÖÖ¸ÅÄ²»¶®¡£
¡¡¡¡2¡¢Êý¾Ý¿â=ËùÓеÄoracleµÄÊý¾ÝÎļþ+¿ØÖÆÎļþ+ÈÕÖ¾Îļ ......
ÌìÓв»²â·çÔÆ£¬
IBM µÄÖж˴ÅÅÌÕóÁÐÕâ´ÎÓÖÈÇ»öÁË¡£ÔÚ΢ÂëÉý¼¶µÄʱºò£¬
DS4800 ·¢Éú¹ÊÕÏ¡£IBM¹¤³Ìʦ°ÑÕóÁйÊÕϻָ´ºó£¬ÅÄÅÄÆ¨¹É×ßÈË£¬ÁôÏÂÁËÕóÁÐÉϲ»Ò»ÖµÄÊý¾Ý¡£
û°ì·¨£¬ÕóÁÐÉϵÄÊý¾ÝÓÖµÃÎÒÃÇÀ´Ïë°ì·¨ÇÀ¾ÈÁË¡£¡£¡£¡£
»¹ºÃÓÐoracle supportµÄÖ§³ÖÎÒÃÇ×îÖÕ»¯½âÁËÕâ´ÎΣ»ú¡£ÏÂÎÄÏêϸ½éÉÜÁËÕû¸ö»Ö¸´µÄ¹ý³Ì¡£
&nbs ......
oracle³£Óú¯Êý-----------------------------------------------
SQLÖеĵ¥¼Ç¼º¯Êý
1.ASCII
·µ»ØÓëÖ¸¶¨µÄ×Ö·û¶ÔÓ¦µÄÊ®½øÖÆÊý;
SQL> select ascii(’A’) A,ascii(’a’) a,ascii(’0’) zero,ascii(’ ’) space from dual;
A A ZERO SPACE
--------- --------- - ......