Oracle Wait Events

Below query to check the wait events in the database

col EVENT for a50

set head on feed on

set lines 134 pages 2000

select event,count(*) from gv$session where event not like 'Streams%' and wait_class <> 'Idle' group by event order by 2;

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Configure Oracle ASM Disks on AIX

Configure Oracle ASM Disks on AIX You can use below steps to configure the new disks for ASM after the raw disks are added to your AIX server by your System/Infrastructure team experts: # /usr/sbin/lsdev -Cc disk The output from this command is similar to the following: hdisk9 Available 02-T1-01 PURE MPIO Drive (Fibre) hdisk10 Available 02-T1-01 PURE MPIO Drive (Fibre) If the new disks are not listed as available, then use the below command to configure the new disks. # /usr/sbin/cfgmgr Enter the following command to identify the device names for the physical disks that you want to use: # /usr/sbin/lspv | grep -i none This command displays information similar to the following for each disk that is not configured in a volume group: hdisk9 0000014652369872 None In the above example hdisk9 is the device name and 0000014652369872 is the physical volume ID (PVID). The disks that you want to use may have a PVID, but they must not belong to a volume group. PVID must be cleared for

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Akshay Narang

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