使用脚本安装的，在1节点安装实例：
./db2icrt -d -cf suse1.mydb.com:suse1.mydb.com -m suse1.mydb.com:suse1.mydb.com -instance_shared_dir /db2fs/ -tbdev 192.168.1.1 -u db2psc db2psc
You need DB2 HA scripts to use SA MP with the DB2 HA feature.
These DB2 HA scripts are located at /usr/sbin/rsct/sapolicies/db2. The
DB2 installer detects whether these DB2 HA scripts need to be installed
or updated.
User response:
No action is required.
Installing or updating DB2 HA scripts for Tivoli SA MP :.......Success
Installing or updating DB2 Cluster Scripts for GPFS :.......Success
Setting default global profile registry variables :.......Success
Register NTP :.......Success
ERROR: The shared file system cluster option 'usePersistentReserve' has not been set to the optimal value of 'yes'. See the DB2 Information Center for more details.
There was an internal db2cluster error. Refer to the diagnostic logs (db2diag.log or /tmp/ibm.db2.cluster.*) and the DB2 Information Center for details.
A diagnostic log has been saved to '/tmp/ibm.db2.cluster.qxLGpY'.
ERROR: The existing GPFS cluster, "suse1.mydb.com", does not meet the
requirement for setting up a DB2 pureScale instance. Failed command:
"/db2/bin/db2cluster -cfs -verify -configuration". For more prerequisite
information, see the DB2 Information Center.
Verify User Managed File System :.......Failure
Post Install Recommendations
-----------------------------
Required steps:
There were some errors detected during DB2 installation. To collect the information files from the system, run the "db2support -install" command with the proper options before reporting the problem to IBM service. For information regarding the usage of the db2support tool, check the DB2 Information Center.
DB2 Setup log file finished at: Tue May 14 15:44:46 2013 EDT
============================================================
使用gpfs命令修改：
/usr/lpp/mmfs/bin/mmchconfig usePersistentReserve=yes
suse1:/db2/instance # /usr/lpp/mmfs/bin/mmchconfig usePersistentReserve=yes
Verifying GPFS is stopped on all nodes ...
mmchconfig: Processing disk gpfs1nsd
mmchconfig: Device sdb does not support PR_shared reserve policy.
mmchconfig: Unable to set reserve policy PR_shared on disk gpfs1nsd on node suse1.mydb.com.
mmchconfig: Unable to enable Persistent Reserve on the following disks:
gpfs1nsd
mmchconfig: The usePersistentReserve parameter will remain unchanged.
mmchconfig: Command failed. Examine previous error messages to determine cause.
suse1:/db2/instance #
suse1:/db2/instance #
suse1:/db2/instance #
共享存储时使用虚拟机管理的 我尝试了ISCSI的共享存储 也是修改不了
/mmchconfig usePersistentReserve=yes
安装方式参照：
http://www.ibm.com/developerworks/cn/data/library/techarticle/dm-1207maoq/ 哪位大侠 能帮忙回答下吗 卡这上面一直解决不了
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