Hi,
Is there someone on earth (or elsewhere ;-)) who knows how to install a
DB2 V9.1 database engine in a High Availability cluster environment?
I need help on that particular point.
Best regards,
Bruno LIVERNAIS
13  5384 
On May 2, 7:01 am, Bruno LIVERNAIS <brunoN...@Mliv ernais.orgwrote :
Hi,
Is there someone on earth (or elsewhere ;-)) who knows how to install a
DB2 V9.1 database engine in a High Availability cluster environment?
I need help on that particular point.
Best regards,
Bruno LIVERNAIS
You are going to have to clarify exactly what you mean by "High
Availability cluster environment"
This could vary depending on if you are using HACMP, HADR, VCS, etc,
etc.
Mark A a écrit :
You are going to have to clarify exactly what you mean by "High
Availability cluster environment"
This could vary depending on if you are using HACMP, HADR, VCS, etc,
etc.
My environment is hp MC/ServiceGuard. This HA cluster is a shared
nothing config with one package (a.k.a. resource). So it's an
active/passive config.
I've installed DB2 ESE V9.1 on the first node, with db2setup but without
creating an instance. Then I've copied config files (passwd, group,
services, etc...) on the other node. After that I've installed DB2 ESE
V9.1 on the other node, just like I've done on previous node.
Then I've created an instance on the first node and check that
db2start/db2stop is correctly working. But when I stop DB2 (db2stop) on
the first node, switch the package on the other. I can't start DB2 (db2)
with that message :
[root@node2 ~]# su db2r01 -c /db2/R01/sqllib/adm/db2start
SQL1092N "DB2R01 " does not have the authority to perform the
requested command.
That's the trick... Please help!!
Thanks
Bruno LIVERNAIS wrote:
>
Then I've created an instance on the first node and check that
db2start/db2stop is correctly working. But when I stop DB2 (db2stop) on
the first node, switch the package on the other. I can't start DB2 (db2)
with that message :
[root@node2 ~]# su db2r01 -c /db2/R01/sqllib/adm/db2start
SQL1092N "DB2R01 " does not have the authority to perform the
requested command.
I'm not familiar with HP/UX or ServiceGuard. But, I'm assuming that it
takes care of failing over all of the necessary file systems (i.e.
"switching the package").
Given this, can you start DB2 manually by first logging in as db2r01
(su - db2r01) and then running 'db2start' ?
Ian a écrit :
Bruno LIVERNAIS wrote:
>>
Then I've created an instance on the first node and check that
db2start/db2stop is correctly working. But when I stop DB2 (db2stop)
on the first node, switch the package on the other. I can't start DB2
(db2) with that message :
[root@node2 ~]# su db2r01 -c /db2/R01/sqllib/adm/db2start
SQL1092N "DB2R01 " does not have the authority to perform the
requested command.
I'm not familiar with HP/UX or ServiceGuard. But, I'm assuming that it
takes care of failing over all of the necessary file systems (i.e.
"switching the package").
Given this, can you start DB2 manually by first logging in as db2r01
(su - db2r01) and then running 'db2start' ?
On node1 :
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. Create the database (connection test is successfull)
4. Switch LVM volumes on node2
On node2:
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. ????
On step 3, I can not create the database because it reports an existing
one (hopefully :-))... But I can not connect either because the database
alias name or database name "R01" could not be found.
So what do I have to do to have access to my database on node2???
Bruno LIVERNAIS wrote:
>
On node1 :
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. Create the database (connection test is successfull)
4. Switch LVM volumes on node2
On node2:
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. ????
On step 3, I can not create the database because it reports an existing
one (hopefully :-))... But I can not connect either because the database
alias name or database name "R01" could not be found.
So what do I have to do to have access to my database on node2???
Typically in an HA environment you don't create an instance on the
standby node. The instance (and all of its associated resources)
all get failed over to the standby.
My guess is that you are missing a file system (or multiple file
systems) that your database is using.
Since you are creating the database as part of this exercise, I assume
that you know where the database is storing its data. So, you should
verify that the database path and all storage paths / tablespace
containers are included in your "package".
If you need additional help let's take this offline.
Ian
Ian a écrit :
Bruno LIVERNAIS wrote:
>>
On node1 :
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. Create the database (connection test is successfull)
4. Switch LVM volumes on node2
On node2:
1. Install DB2 with db2setup with instance creation (db2r01)
2. db2start and db2stop are successfull
3. ????
On step 3, I can not create the database because it reports an
existing one (hopefully :-))... But I can not connect either because
the database alias name or database name "R01" could not be found.
So what do I have to do to have access to my database on node2???
Typically in an HA environment you don't create an instance on the
standby node. The instance (and all of its associated resources)
all get failed over to the standby.
When I failover my "package", all related filesystems are unmounted from
node1 and mounted on node2. Then when I want to start DB2, it fails
because it does not know my database (and instance)... Be sure that all
datafiles are stored on the shared volume.
Bruno LIVERNAIS wrote:
Ian a écrit :
When I failover my "package", all related filesystems are unmounted from
node1 and mounted on node2. Then when I want to start DB2, it fails
because it does not know my database (and instance)... Be sure that all
datafiles are stored on the shared volume.
Does this include the instance owner's home directory?
Ian a écrit :
Bruno LIVERNAIS wrote:
>Ian a écrit :
When I failover my "package", all related filesystems are unmounted
from node1 and mounted on node2. Then when I want to start DB2, it
fails because it does not know my database (and instance)... Be sure
that all datafiles are stored on the shared volume.
Does this include the instance owner's home directory?
Should it do so ?
Well, as a conlusion, it appears that DB2 is really not cluster
friendly... And no one is able to demonstrate the opposite!!!!
Bruno LIVERNAIS a écrit :
Hi,
Is there someone on earth (or elsewhere ;-)) who knows how to install a
DB2 V9.1 database engine in a High Availability cluster environment?
I need help on that particular point.
Best regards,
Bruno LIVERNAIS
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