ASM Instance Creation

Hi,
I need to just create a new ASM instance on solaris without RAC,can anyone share docs of what are the pre-reuquiite and the details of creation of ASM Instance.
Regards,
Hussain

The ASM OS prereqs are the same as the DB prereqs - e.g kernel parameters, OS packages.
Really difficult to give advice if you won't say what version of the OS, what version of the database, what storage etc.
Some basic docs here :-
http://blogs.sun.com/pomah/entry/configuration_example_of_oracle_asm
http://www.oracle.com/technology/products/database/asm/pdf/asm-on-emc-5_3.pdf

Similar Messages

Error at ASM instance creation - PRKS-1009

Hello all,
I am in the process of creating a 2 Node RAC database, on VMWare.
OS - RHEL 4 Oracle 10g
I have successfully installed the cluster. After this i was in the process of installing Oracle 10g Binaries.. which installed almost fine, until the time when i had to setup ASM storage options in the DBCA.
Unfortunately, my bad luck the computer rebooted after an automatic (windows update) *Remember i am using RHEL on VMWare server).
I had to unintall the binaries using the Oracle GUI... after that i removed all the files from db_1 folder.
I re-initiated the process of installing the db binaries, until the time i came to the asm option, there i got a prompt asking me to re-create the asm instance, which for which i clicked ok... here.. i got an error.
PRKS-1009 Failed to start ASM Instance "+ASM2" on node "rac2".
[CRS-1028: Dependency analysis failed because of.
[CRS-0233: Resource 'ora.rac2.ASM2.asm' has placement error.
There is one more issue i have, i am unable to use crs_stat command, each time it throws an error saying crs_stat command not found!!
Please guide...

Hello all,
I have managed to solve this problem.
The asm instances were running in the background even after uninstalling the binaries.
I removed the asm instances.
before that i stopped the asm instances.
/crs_stat -t
Stop instance name
crs_stop <output from crs_stat> asm 1
crs_stop <output from crs_stat> asm 2
srvctl remove asm -n rac1 -i +ASM1 -f
srvctl remove asm -n rac2 -i +ASM1 -f
then re-create the asm instance
Thanks!!

RAC ASM instance creation

Can we configure ASM instance on all nodes in RAC at the same time?

790066 wrote:
Thanks for your reply.
Do we have centralized ASM instance for all nodes?
If yes does it should be created on shared device or something else???Normally database will reside in SHARED STORAGE and ASM & RBDMS instances willbe in stand alone systems..
ASM diskgorup will be sharable to all the instances... not the instance can be sharable
Hope you understood.
Thanks
read this. http://download.oracle.com/docs/cd/B28359_01/server.111/b31107/asmcon.htm
Edited by: CKPT on Jan 4, 2011 1:23 PM

Unable to recreate ASM instance in 10g rac (2 node )

Hi,
I have successfully installed the clusterware and database software.during ASM installation it got failed, i i have cleaned up ASM setup.
Now i am not able to create asm instance it show following message
PRKS-1011:Failed to check status of ASM instance "+ASM1" on node "rac1",[
CRS-0210:Could not find resource ora.rac1.ASM1.asm
here are few output of commands and activity done
[oracle@rac1 ~]$ crs_stat -t
Name Type Target State Host
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
[oracle@rac1 ~]$
[oracle@rac1 ~]$ crs_profile -validate ora.rac1.ASM1.asm
CRS-0181: Cannot access the resource profile '/u01/app/oracle/product/10.2.0/crs_1/crs/public/ora.rac1.ASM1.asm.cap'.
CRS-0180: Resource '/u01/app/oracle/product/10.2.0/crs_1/crs/public/ora.rac1.ASM1.asm.cap' validation failed.
[oracle@rac1 ~]$ crs_profile -validate ora.rac2.ASM2.asm
CRS-0181: Cannot access the resource profile '/u01/app/oracle/product/10.2.0/crs_1/crs/public/ora.rac2.ASM2.asm.cap'.
CRS-0180: Resource '/u01/app/oracle/product/10.2.0/crs_1/crs/public/ora.rac2.ASM2.asm.cap' validation failed.
[oracle@rac1 ~]$
[oracle@rac1 ~]$
[oracle@rac1 ~]$ crs_unregister ora.rac1.ASM1.asm
CRS-0210: Could not find resource 'ora.rac1.ASM1.asm'.
[oracle@rac1 ~]$ crs_unregister ora.rac2.ASM2.asm
CRS-0210: Could not find resource 'ora.rac2.ASM2.asm'.
I Have deleted following files
rm -Rf $ORACLE_BASE/admin/+ASM
rm -Rf $ORACLE_HOME/dbs/*ASM*
[oracle@rac1 ~]$ rm -Rf $ORACLE_HOME/dbs/*ASM*
[oracle@rac1 ~]$ rm -Rf $ORACLE_BASE/admin/+ASM
[oracle@rac1 ~]$ ssh rac2
Last login: Thu Feb 23 16:31:26 2012 from rac1.mylinux.localdomain
[oracle@rac2 ~]$ rm -Rf $ORACLE_BASE/admin/+ASM
[oracle@rac2 ~]$ rm -Rf $ORACLE_HOME/dbs/*ASM*
dbca -silent -deleteASM -nodelist rac1,rac2 -----AS per oracle DOC
Also removed entries from oratab file for ASM instances.
Dbca error message during asm instance creation for both node
PRKS-1011:Failed to check status of ASM instance "+ASM1" on node "rac1",[
CRS-0210:Could not find resource ora.rac1.ASM1.asm
PRKS-1011:Failed to check status of ASM instance "+ASM2" on node "rac2",[
CRS-0210:Could not find resource ora.rac2.ASM2.asm
Did i forget to remove entries for ASM instance somewhere.
Please help me.

Hi,
I believe your OCR is corrupted....so restore the OCR from most recent backup (before error ).
Using crs_* commands on resources with the prefix ora.* (resources provided by Oracle) remains unsupported.
After restore OCR... remove ASM with "srvctl" command:
http://docs.oracle.com/cd/B19306_01/rac.102/b14197/srvctladmin.htm#CHDBDDAD
Regards,
Levi Pereira

Trying to create ASM instance, thinks one already exists?

I've got a problem with creating the ASM instance. Basically, I've reinstalled (v11.1.0.6) clusterware, and two database software installs (one for asm, one for db) due to a san swap. Now, I believe that there is still a hangover to the original installation. When creating the ASM instance through DBCA on Windows, I get the following:
DBCA could not startup the ASM instance configured on this node. To proceed with ASM diskgroup management you need the ASM instance to be up and running. Do you want to recreate the ASM instance on this node?
Yes
Enter password
DBCA will now create and start the ASM instance. After the ASM instance is started, you can create disk groups to be used as storage for your database.
OK
ASM Instance Creation...
Encountered file error when copying listeners from home=D:\oracle\product\11.1.0\asm_2
OK
The operation will be stopped. Re-run DBCA after successfully running NetCA.
I have a listener running (listener_rac), I have a similar problem with netca as it says I already have a listener called listener, which I do not, however, I have created listener_rac instead.
I feel trhat the problem is that ASM1 (for node 1) or ASM2 (for node 2) already exists. However, I can not find either of these. I can create an ASM instance in single node mode, however, this creates an instance +ASM, which does not conflict.
How do I find the non-existent instance, and remove it? (not in registry or services)
Alternatively, any other ideas as to what is happening?
Thank you for your time.

I have a listener running (listener_rac), I have a similar problem with netca as it says I already have a listener called listener, which I do not, however, I have created listener_rac insteadDBCA created your listener... you can check on listener status
srvctl status nodeapps -n node01
Listener is running on node: node01
srvctl status nodeapps -n node02
Listener is running on node: node02
if not start, start it by
Usage: srvctl start listener -n <node_name> [-l <lsnr_name_list>]
srvctl start listener -n node01
by the way, you cam use "netca" delete/recreate (listener_rac)
After that, point to ASM:
I feel trhat the problem is that ASM1 (for node 1) or ASM2 (for node 2) already exists. However, I can not find either of these. What did you see?
crs_stat
srvctl status asm -n node01
srvctl status asm -n node02
if you see asm on node01/node2... you can start them if thet offline
srvctl start asm -n node01
srvctl start asm -n node02
and then.. use "DBCA" to help create ASM diskgroups.
I can create an ASM instance in single node mode, however, this creates an instance +ASM, which does not conflict.that can conflict.. don't start it (+ASM)
How do I find the non-existent instance, and remove it? (not in registry or services)
Alternatively, any other ideas as to what is happening?use "crs_stat" command
http://download.oracle.com/docs/cd/B28359_01/rac.111/b28255/crsref.htm#CWADD6025
and use "srvctl"
http://download.oracle.com/docs/cd/B28359_01/rac.111/b28254/srvctladmin.htm#RACAD028

Creation of ASM instance.

hi all,
can any one help me out in this regard??
i have a DB in 10gR1 in normal file system. i want to convert this to ASM instance.
Is that first i need to create disk groups followed by adding the asm parameters in init.ora file and then bringing it up or what else the sequence????
can any one give the clear link for creating the disk groups and creation of an asm instance along the asm related init.ora parameters????
I am glad to have your help in this regard...

Please look into Oracle Metalink Document I.D. Note:270065.1 (Use Automatic SGA Management).
Adith

ASM instance's block size

Hello.
I have an Oracle 10.2 database running on Linux. Its block size is 8KB. I created ASM instance using DBCA. I see its block size is 4KB, but I didn't specify it anywhere while creation.
Why is that?
Thx.
A.

As for databases 'later' is not possible. I'm not sure what happens when you choose another blocksize at creation time. ASM blocksize is only for metadata,it's not related to the actual database data (having the database blocksize) stored in ASM diskgroups.
Werner

Can there be multiple ASM instances on single node?

Hi,
Can there be multiple ASM instances on single node?
This one says No : http://www.freelists.org/archives/oracle-l/02-2008/msg00317.html
And This one says Yes : http://www.databasejournal.com/features/oracle/article.php/3571371
Thanks in advance.
Thanks,
Harsha
Edited by: user498756 on Sep 11, 2008 2:23 AM

...that document doesnt say you cannot have multiple ASM instances on a node. It says "...ASM, +you only need one ASM+ instance for that computer, to manage the two database instances that use ASM."
The fact that you only need one - and I cannot think of a good reason to have more than one - does not preclude the fact that you do seem to be able to have multiple ASM instances on a single node, each looking after its own set of disks and diskgroups.
Again - I cannot think of a good reason to do so though!
-Bob

Upgrade ASM instance database 10g to 11g

Hi,
In my environment, I have ASM instance database 10.2.0.3 running on solaris 10 (64-bit), I need to upgrade to ASM instance 11.1.0.6 database. please guide me an overview of steps...
thanks in advance

Thanks for the response,
Sorry, In my environment I know database (10.2.0.3) is mounted in ASM diskgroups, now i have a concern
1) If database is mounted in ASM diskgroups, could it be a database instance or it has to be only ASM instance connected to the database?
2) As in my upgrade from ASM instance (10.2.0.3) to ASM instance (11.1.0.6), do we need to upgrade asm instance as well as database? i mean to invoke DBUA twice for upgrading ASM instance then for upgrading database as well?
Sorry for some silly questions...please make me clear...
Regards

How to configure Oracle Enterprise manager 11.2.0.1 for ASM instance

Hi All,
Please let us know How to configure Oracle Enterprise manager 11.2.0.1 for ASM instance.
Reagrds,
Vikas

Assuming an agent is running on the servers you want to monitor,
navigate to the Agent home page (Via setup --> Agent)
When in the agent home page select 'Add Database'and press [Go]
Assuming yopur database now gets recognized, select the Configure icon and enter the password for dbsnmp.
When done, press [Ok] to return to the agent home page.
Regards
Rob
http://oemgc.wordpress.com

ASM instance on one node can not startup

use dbca create database failure
[oracle@rac1 ~]$ dbca -silent -responseFile /home/oracle/dbca.rsp
Look at the log file "/opt/ora/product/10.2.0/db_1/cfgtoollogs/dbca/mydb.log" for further details.
[oracle@rac1 ~]$ cat "/opt/ora/product/10.2.0/db_1/cfgtoollogs/dbca/mydb.log"
PRKS-1009 : Failed to start ASM instance "+ASM2" on node "rac2", [CRS-0215: Could not start resource 'ora.rac2.ASM2.asm'.]
ORA-03135: connection lost contact
[oracle@rac2 bin]$ ./crs_stat -t
Name           Type           Target    State     Host
ora....SM1.asm application    ONLINE    ONLINE    rac1
ora....C1.lsnr application    ONLINE    ONLINE    rac1
ora.rac1.gsd   application    ONLINE    ONLINE    rac1
ora.rac1.ons   application    ONLINE    ONLINE    rac1
ora.rac1.vip   application    ONLINE    ONLINE    rac1
ora....SM2.asm application    ONLINE    OFFLINE
ora....C2.lsnr application    ONLINE    ONLINE    rac2
ora.rac2.gsd   application    ONLINE    ONLINE    rac2
ora.rac2.ons   application    ONLINE    ONLINE    rac2
ora.rac2.vip   application    ONLINE    ONLINE    rac2so i try to start asm instance on rac2
[oracle@rac2 bin]$ ./srvctl start asm -n rac2
PRKS-1009 : Failed to start ASM instance "+ASM2" on node "rac2", [PRKS-1009 : Failed to start ASM instance "+ASM2" on node "rac2", [rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:SQL*Plus: Release 10.2.0.1.0 - Production on Mon Jul 25 17:58:21 2011
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:Copyright (c) 1982, 2005, Oracle. All rights reserved.
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:Enter user-name: Connected to an idle instance.
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:SQL> ORA-03113: end-of-file on communication channel
rac2:ora.rac2.ASM2.asm:SQL> Disconnected
rac2:ora.rac2.ASM2.asm:
CRS-0215: Could not start resource 'ora.rac2.ASM2.asm'.]]
[PRKS-1009 : Failed to start ASM instance "+ASM2" on node "rac2", [rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:SQL*Plus: Release 10.2.0.1.0 - Production on Mon Jul 25 17:58:21 2011
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:Copyright (c) 1982, 2005, Oracle. All rights reserved.
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:Enter user-name: Connected to an idle instance.
rac2:ora.rac2.ASM2.asm:
rac2:ora.rac2.ASM2.asm:SQL> ORA-03113: end-of-file on communication channel
rac2:ora.rac2.ASM2.asm:SQL> Disconnected
rac2:ora.rac2.ASM2.asm:check the alert log find
Mon Jul 25 17:58:23 2011
Maximum Tranmission Unit (mtu) of the ether adapter is different
on the node running instance 1, and this node.
Ether adapters connecting the cluster nodes must be configured
with identical mtu on all the nodes, for Oracle.
Please ensure the mtu attribute of the ether adapter on all
nodes are identical, before running Oracle.
Mon Jul 25 17:58:23 2011
Errors in file /opt/ora/admin/+ASM/bdump/+asm2_lmon_29711.trc:
ORA-27550: Target ID protocol check failed. tid vers=%d, type=%d, remote instance number=%d, local instance number=%d
LMON: terminating instance due to error 27550
Mon Jul 25 17:58:25 2011
Shutting down instance (abort)
License high water mark = 0
Mon Jul 25 17:58:28 2011
Instance terminated by LMON, pid = 29711
Mon Jul 25 17:58:30 2011
Instance terminated by USER, pid = 29831and i checked my eth
[root@rac1 oracle]# ifconfig -a
eth0      Link encap:Ethernet HWaddr 00:0C:29:3C:42:0C
          inet addr:192.168.40.102 Bcast:192.168.40.255 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:9762 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6028 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1193646 (1.1 MiB) TX bytes:1037252 (1012.9 KiB)
          Interrupt:67 Base address:0x2400
eth0:1    Link encap:Ethernet HWaddr 00:0C:29:3C:42:0C
          inet addr:192.168.40.201 Bcast:192.168.40.255 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          Interrupt:67 Base address:0x2400
eth1      Link encap:Ethernet HWaddr 00:0C:29:3C:42:16
          inet addr:10.10.17.221 Bcast:10.10.17.225 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:30185 errors:0 dropped:0 overruns:0 frame:0
          TX packets:37936 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:19988844 (19.0 MiB) TX bytes:35126056 (33.4 MiB)
          Interrupt:51 Base address:0x2480
lo        Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:52537 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52537 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4380651 (4.1 MiB) TX bytes:4380651 (4.1 MiB)
[root@rac2 ~]# ifconfig -a
eth0      Link encap:Ethernet HWaddr 00:0C:29:9C:CC:90
          inet addr:192.168.40.103 Bcast:192.168.40.255 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:3665 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1489 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:563952 (550.7 KiB) TX bytes:243127 (237.4 KiB)
          Interrupt:67 Base address:0x2400
eth0:1    Link encap:Ethernet HWaddr 00:0C:29:9C:CC:90
          inet addr:192.168.40.202 Bcast:192.168.40.255 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          Interrupt:67 Base address:0x2400
eth1      Link encap:Ethernet HWaddr 00:0C:29:9C:CC:9A
          inet addr:10.10.17.222 Bcast:10.10.17.225 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:38281 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29683 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:35182270 (33.5 MiB) TX bytes:19905266 (18.9 MiB)
          Interrupt:51 Base address:0x2480
lo        Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:44387 errors:0 dropped:0 overruns:0 frame:0
          TX packets:44387 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2299383 (2.1 MiB) TX bytes:2299383 (2.1 MiB)any idea ?
i try to run dbca on rac2 ,it seems OK
============
ASM instance still have problem,no ASM instance create in rac1
[oracle@rac2 bin]$ ./crs_stat -t
Name           Type           Target    State     Host
ora.mydb.db    application    ONLINE    ONLINE    rac1
ora....b1.inst application    ONLINE    OFFLINE
ora....b2.inst application    ONLINE    ONLINE    rac2
ora....SM1.asm application    ONLINE    OFFLINE
ora....C1.lsnr application    ONLINE    ONLINE    rac1
ora....C2.lsnr application    ONLINE    OFFLINE              => ora.rac1.LISTENER_RAC2.lsnr   (i do not know where this resource come from ??)
ora.rac1.gsd   application    ONLINE    ONLINE    rac1
ora.rac1.ons   application    ONLINE    ONLINE    rac1
ora.rac1.vip   application    ONLINE    ONLINE    rac1
ora....SM2.asm application    ONLINE    ONLINE    rac2
ora....C2.lsnr application    ONLINE    ONLINE    rac2
ora.rac2.gsd   application    ONLINE    ONLINE    rac2
ora.rac2.ons   application    ONLINE    ONLINE    rac2
ora.rac2.vip   application    ONLINE    ONLINE    rac2and here is my dbca.rsp file content
[GENERAL]
RESPONSEFILE_VERSION = "10.0.0"
OPERATION_TYPE = "createDatabase"
[CREATEDATABASE]
GDBNAME = "mydb.us.oracle.com"
SID = "mydb"
NODELIST=rac1,rac2
TEMPLATENAME = "/home/oracle/mydb.dbc"
SYSPASSWORD = "Myss123456"
SYSTEMPASSWORD = "Myss123456"
EMCONFIGURATION = "NONE"
DBSNMPPASSWORD = "Myss123456"
STORAGETYPE=ASM
DISKLIST=/dev/oracleasm/disks/VOL1,/dev/oracleasm/disks/VOL2
DISKGROUPNAME=ORADG
REDUNDANCY=EXTRENAL
DISKSTRING="/dev/oracleasm/disks/*"
ASM_SYS_PASSWORD="Myss123456"
LISTENERS = "listener1 listener2"Edited by: 859340 on 2011-7-24 下午7:23
Edited by: 859340 on 2011-7-24 下午7:32
Edited by: 859340 on 2011-7-24 下午7:35
Edited by: 859340 on 2011-7-24 下午7:51

Hi,
Use this tech note on MOS.
*Instance Crash on startup with ORA-27550: Target ID protocol check failed [ID 730516.1]*
Regards,
Levi Pereira

Multiple ASM instances using single cluster install - Is it possible??

Hi,
I have 2 node RAC cluster installed on Linux. All the storage is on EMC. I need to setup another environment using HP storage on the same hosts. Is it possible to created second ASM instance using the same cluster install?? I wanted to have clear separation b/w EMC and HP environments and that's wondering if it's feasible to do that.
Haven't tried it yet to see if it complains.
Thx
Anitha

Anitha,
The data migration won't happen (at least not aggressively) until you do step 2 in your list where you remove the EMC disks. That removal operation will take a long time as Oracle will have to move the data before it can complete the operation. If you want to be sure, I'd recommend creating a new disk group with one of your new disks, put a small tablespace in it, create some data in it, then add a disk to that new group and remove the original disk. Then you'll have some confidence in the procedure and verify that it works without risking your production data. After you test, you can drop the disk group and use the disks for their intended purposes.
To answer your question, yes, that's the process exactly as I suggested it above. Should work fine--but will probably take a while to do the remove, so be prepared to leave that running for quite a while (i.e. don't expect to close the terminal and go home right after running the remove).
Dan

ASM instances on 2 node Oracle RAC 10g r2 on Red Hat 4 u1

Hi all
I'm experiencing a problem in configuring diskgroups under +ASM instances on a two node Oracle RAC.
I followed the official guide and also official documents from metalink site, but i'm stuck with the visibility of asm disks.
I created fake disks on nfs with Netapp certified storage binding them to block device with the usual trick "losetup /dev/loopX /nfs/disk1 " ,
run "oracleasm createdisk DISKX /dev/loopX" on one node and
"oracleasm scandisks" on the other one.
With "oracleasm listdisks" i can see the disks at OS level in both nodes , but , when i try to create and mount diskgroup in the ASM instances , on the instance on which i create the diskgroup all is well, but the other one doesn't see the disks at all, and diskgroup mount fails with :
ERROR: no PST quorum in group 1: required 2, found 0
Tue Sep 20 16:22:32 2005
NOTE: cache dismounting group 1/0x6F88595E (DG1)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DG1 was not mounted
any help would be appreciated
thanks a lot.
Antonello

I'm having this same problem. Did you ever find a solution?

Asm instances on single system

Hi ,
How many ASM instance can reside on one single machine.....

Hi,
Only one ASM instance can run on a server.
Mahir

Multiple ASM instances on a single node

Can i have multiple ASM instances on a single node? This is to have each instance supporting different environment dev,stage etc
Thanks
Sannidhi

I had been discussing the same issue with someone from Oracle. I asked for multiple ASMs on a server so that we could have seperate ASMs running for, say, 10g and 11g.
He explained that we should think of ASM as being the same as Veritas FileSystem. We don't run multiple instances of Veritas on our servers. On single Veritas "instance" (set of drivers) provides all the Veritas Fx mountpoints on the server. Similarly, there should be only 1 ASM instance on a server.
(substitute UFS or ZFS or CFS for Veritas in the above example and you still have only 1 filesystem manager on a server providing one type of filesystem, although you could have, say , UFS and Veritas co-exist ; just as you could have Veritas, ASM and Raw co-exist on a server).
Hemant K Chitale
Edited by: Hemant K Chitale on Sep 29, 2009 11:50 AM

ASM Instance Creation

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