Oracle升級：AIX 11g RAC11.2.0.3.0安裝PSU遭遇unpublished b

AIX上完成了11gR2 RAC 11.2.0.2至11.2.0.3的PatchSet升級后，在安裝PSU過程中遇到以下問題：

PSU下載地址：

Oracle Recommended Patches -- Oracle Database [ID 756671.1]
根據文檔說明：

11.2.0.3 Current Recommended Patches-
 

Patch Set Updates

Document Description Rolling RAC Patch Download
Note:13343438.8 11.2.0.3.1 Patch Set Update (PSU) Yes Patch:13343438

Grid Infrastructure

Document Description Rolling RAC Patch Download
Note:13348650.8 11.2.0.3.1 Grid Infrastructure Patch Set Update (GI PSU) Yes Patch:13348650

Also see:

Note:1392633.1Common Performance/Wrong Results Bugs Reported on 11.2.0.3

其中patch 13348650已經包含了patch 13343438，因此只需要下載13348650

解壓后如下的目錄如下：
[grid@p520 soft]$ ls
13343438  13348650
這PSU程序太大了，下載1G，解壓6G
[p520]/soft #ls
13343438 13348650 README.html README.txt bundle.xml lost+found
[p520]/soft #du -sm
6028.86 .
在安裝過程中，進行到以下步驟時，opatch失敗：
[root@p520 soft]# /Oracle/app/11.2.0.3/grid/OPatch/opatch auto /soft -oh
/Oracle/app/11.2.0.3/grid -ocmrf /tmp/oracle/ocm.rsp
2012-04-01 17:46:09: patch //soft/13348650 apply failed for home
/Oracle/app/11.2.0.3/grid
分析安裝日志，發現報錯如下：
Verifying environment and performing prerequisite checks...
Prerequisite check "CheckSystemSpace" failed.
The details are:
Required amount of space(23420.604MB) is not available.
UtilSession failed:
Prerequisite check "CheckSystemSpace" failed.
Log file location: /Oracle/app/11.2.0.3
/grid/cfgtoollogs/opatch/opatch2012-04-01_17-46-03PM_1.log
OPatch failed with error code 73
暈到，安裝一個PSU居然空閑空間至少23個G，我的空間情況如下：
[p520]/soft #df -g
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd4 1.00 0.68 32% 11004 7% /
/dev/hd2 7.00 1.14 84% 65951 19% /usr
/dev/hd9var 1.00 0.65 35% 8433 5% /var
/dev/hd3 2.00 1.74 13% 2126 1% /tmp
/dev/hd1 1.00 1.00 1% 129 1% /home
/dev/hd11admin 0.25 0.25 1% 5 1% /admin
/proc - - - - - /proc
/dev/hd10opt 1.00 0.78 22% 9070 5% /opt
/dev/livedump 0.25 0.25 1% 4 1%
/var/adm/ras/livedump
/dev/oralv 48.00 10.61 78% 127133 5% /Oracle
根據metalink上文檔介紹：
opatch CheckSystemSpace Fails With Error Code 73 While Applying GI PSU [ID1088455.1]
Cause：
OPATCH needs about 4.4GB of disk space in $GRID_HOME to apply PSU patch,
the issue happened as there's insufficient space.
On AIX, due to unpublished bug 9780505, space requirement is 22GB
沒辦法，只能增加/Oracle文件系統的空間繼續安裝PSU。
所以建議各位在升級的時候一定要考慮到空間問題。

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