ACFS and ASM

I want to ensure by db_recovery destination_size value whenever i create ACFS filesystem.
Example:
I created ACFS file system of 10 GB from the Flash diskgroup (PTMCM_FRA) of size 17GB. I would like to know what would be size of db_recovery_destination_size?
Thanks for your help

Hello,
i am not exactly sure if i undertand your question, but i think you want to know your free space in the diskgroup for the FRA after you create a ACFS Volume. Maybe this query help you.
SQL> select name,total_mb,free_mb,usable_file_mb from v$asm_diskgroup;
NAME                    TOTAL_MB FREE_MB USABLE_FILE_MB
DG_DATA                61436 26435     26435
DG_FRA                    61436 59385     59385
regards
Peter

Similar Messages

ACFS and ASM Vol

when should w to use ACFS and ASM Vol on 11G Rel 2 11.2.0.3.0
http://docs.oracle.com/cd/E16338_01/server.112/e10500/asmfilesystem.htm
•Oracle ASM is the preferred storage manager for all database files. It has been specifically designed and optimized to provide the best performance for database file types.
•Oracle ACFS is the preferred file manager for non-database files. It is optimized for general purpose files.
•Oracle ACFS does not support any file that can be directly stored in Oracle ASM.
is ACFS optional and does it incur any additional licensing costs

Oracle has thrown in all sorts of nonsensical verbiage to completely confuse everyone as to how you can us e ACFS. You can use it for "database-related" stuff but you can't use it for data files, archivelog files, backup files. You can store exports because if you do a parallel expdp the export file(s) must be visible to the entire cluster. Which **I think** is to be interpreted that you cannot store "application" files that are required to be accessible by your applications. I surmise that the reason for this is that Oracle decided they could make more $$$ by releasing a "product" called CloudFS. CloudFS **is** ASM/ACFS - and nothing more. So, on your Weblogic clustered middle-tier you can use Cloudfs to store your application data files.
Example for mid-tier:
some process transfers 100's of files to be processed
The middle-tier - running on multiple servers (nodes)
take the files and process them in parallel (mechanisms in place to ensure only one node processes a given file )
writes output files to another shared directory.
In the past, you would provide a "share" by using NFS. Well, as it turns out - really bad things can happen when when one of the nodes processing and not receiving the files dies, you can have files get "lost" if that NFS share dies.
ACFS works great for this - and Oracle realized that since "ASM/GI" was sort-f "free" they needed to close that loophole. In RAC, the only thing that "cost extra" was the RAC license which only applied to the RDBMS code that made the database cluster-aware. <this from a conversation from an ex-Oracle Salesman>.

Sapinst under RAC 11.2 using ACFS and ASM

Hi all,
we are actually doing some installationtests (BankingService-Netweaver 7.02) ) on a 2Node-RAC-Cluster with the actual sapinst based on OEL 5.5, Oragrid 11.2.0.2 and OracleBin 11.2.0.2.
We doing a HA-Installation and we put all "DB-related" files in ASM.
We put all failovercritical Filesystems on ACFS.
We are no ASM-mirroring (but SAN-based)
Of course we know that this combination is not (yet) SAP-certified - but it works fine.
We are using different Oracle-Users" as grid-ower (oragrid) and "DB-owner" (standard: ora<sid>).
We faced some privilege-problems regarding the cluster-ressources for ora<sid> -> apart from that the installations run without any issues.
As sapinst asked for the sapdata-directories, we answered with the ASM-structure.
So sapinst creates the +ASM-dierectories (if he what to...) and puts the coresponding create_sql-commands towards the DB, which where corectly interpreted against ASM.
So here some questions:
does anybody know, when there will be a sapinst with complete ASM-support?
should we use just one oracle-user?
is there a naming-standard for the RAC-instances?
are there brtools availbale with complete ASM-support?
Thanks and Regards
Thomas

Hi Sebastian,
I knew this presentation and I'm waiting for 7.03...
This is the newest sapinst, I can find under NW7.0:
SAPinst build information:
abi version : 722
make variant: 720_REL
build : 1201786
compile time: Nov 5 2010 02:07:45
Do you think, this is already the right one?
Thanks
Thomas

Oracle Database 11gr2 rac on solaris 10 using ACFS and asm as storage

Can i get any step by step document to install 11gr2 rac on solaris 10.
My database is two node rac. I am using ASM as storage. So i need a document which should very easy to understand.
thanks in advance

Hi,
Can i get any step by step document to install 11gr2 rac on solaris 10.
My database is two node rac. I am using ASM as storage. So i need a document which should very easy to understand.Refer below link:
http://www.oraclemasters.in/?p=961
Configure storage as per your requirement.
thanks,
X A H E E R

UEK2 and ASM/ACFS shouldn't be so difficult

We are running Oracle 11g Grid Infrastructure (GI) on Oracle Linux 5 x86_64. To pass security audits, we must apply the latest patches every quarter. This includes both Oracle Linux patches and Oracle database patches. Linux patches and Oracle database patches are applied in the same maintenance window.
We utilize the ACFS feature of 11g GI. ACFS requires a kernel module to match the installed kernel so we must carefully choose our kernel to match what ACFS supports. It has been 10 months since the release of UEK2 and yet the January GI PSU (GI 11.2.0.3.5 PSU Patch 14727347), still does not include support for UEK2. Lenz Grimmer stated a nine month grace period for UEK on Oracle's Linux Blog dated Mar 13 2012. Here is the quote.
+"Now that the Unbreakable Enterprise Kernel Release 2 has been released, we will continue to provide support for Release 1 of the Unbreakable Enterprise Kernel (2.6.32) in the form of critical bug fixes and security errata for another 9 months. However, new hardware enablement (e.g. by providing device driver updates) will now only be made available through the quarterly updates of Unbreakable Enterprise Kernel Release 2 on the Unbreakable Linux Network. During this grace period, we encourage all customers to switch to Release 2."+
I have reviewed My Oracle Support article ID 1369107.1 - ACFS Supported On OS Platforms.
It looks like the only way to run ACFS on UEK2 is to utilize the October GI PSU (14275572) and then apply Patch 12983005 on top of it to get UEK2 support.
I don't want to be a quarter behind on my patch levels and also have an extra patch to apply just because I want to use ACFS with UEK2. Ultimately I just want to run yum update along with the latest database PSU once a quarter.
What is the best way to express my dissatisfaction with this scenario and encourage the database team to start supporting UEK2 directly via the GI PSU quarterly process?

Thanks Avi. I've re-posted in the High Availability » Automatic Storage Management forum.
UEK2 and ASM/ACFS shouldn't be so difficult
Edited by: rukbat on Feb 2, 2013 5:09 AM
Link to that new thread added by moderator.
That helps future readers follow the topic "wherever it may travel".

What is Oracle ACFS and ADVM

Hi, I am trying to get my head around exactly what Oracle ACFS and ADVM are in relation to ASM ( the Oracle manuals are less than clear ! )
Q1. To my mind, ACFS extends the ability of ASM to manage and present file systems which are not simply provided from a single server but where a file system itself could be distributed over a cluster of servers - is that correct ?
Q2. ADVM on the otherhand is stumping me a bit. I know that ACFS sits on top of ADVM but I am trying to workout what ADVM gives you above the usual volume management capability of ASM in the first place ?
Q3. What is ASMLib for ?
Q4. I believe oracleasm is the command line interface to ASMLib - is that correct ?
any help would be warmly appreciated,
Jim

In regards to OCFS and ACFS. I understand that they are different Cluster File systems, both developed by Oracle but with OCFS being the older open source, general purpose Cluster File System and ACFS being the licensed one they have developed in 11gR2 for GRid Infrastructure / ASM to use.
OCFS and ACFS are separate products by different teams for different purposes. One should not compare the two as they have different pros and cons.
Q1. Is ACFS, Oracle's default for Grid Infrastructure ( ASM + Clusterware ) from 11.2 onwards ? The image you previously referred to would appear to show this ( or does the box showing the use of a 3rd party file system include OCFS as a possibility ? )
I believe that it shows that ASM is modular with defined call interfaces allowing 3rd party integration - and that this has no bearing to OCFS specifically.
Q2. The same image appears to show RAC only using ACFS. Again is this the default from 11.2 onwards ?
ACFS is recommended when using ASM and a cluster file system is needed. You do not need any additional moving parts to have a clustered file system. But this does not mean that other cluster file systems are not supported.
Q3. Prior to 11.2 what did RAC use as it clustered file system ? Was it OCFS or were there a number of options ?
In the days of OPS (Oracle Parallel Server), a cluster was build on raw devices (seen by all nodes), with the o/s providing a DLM (Distributed Lock Manager) to allow concurrent access by different processes on different servers to the same disks.
This was very clunky and had minimal management tools. I recall requesting a DBA to add another scsi disk to a tablespace and he accidentally entered the disk size to add as 2MB instead of 2GB. The disk was toast as we had no means to reclaim the rest of the storage, and removing the disk from the tablespace was not possible. OPS also had other issues like a TCP Interconnect and so on.
When RAC was introduced, Oracle addressed a lot of the OPS cons. Like requiring a 3rd party DLM. Like having the DBA directly dealing with raw scsi devices. Like using TCP for the Interconnect. Etc.
ASM was introduced to do the storage management for the database stack. Oracle RAC has an underlying component called the cluster (CRS) stack - and this specifically needs cluster storage for the OCR and Voting files (no db storage). As ASM was part of the db stack, you had to use something else for the CRS stack's storage. That something else being OCFS for example, or a raw scsi devices, etc.
With 11gr2 Oracle extended ASM to support the CRS stack and provide for storage for the CRS. Which is why one now installs ASM with CRS (and it runs as the o/s grid user), and not with the db s/w (running as the oracle user). As part of the feature set of providing CRS storage, cluster file system storage is also provided (for example, to install the db stack in a single shared cluster Oracle home).
ASM's new features simply continued the trend of reducing CRS/RAC dependency on 3rd party components - even if said 3rd party (external) component happens to be from a different division from the same company and called OCFS.
By the same token, the entire CRS/RAC s/w stack has been further modularised, allowing you to integrate your own stuff with it. You can for example use CRS to run a series of Apache web servers as a cluster, with load balancing, redundancy and failover. Or if you feel the need, build your own cluster file system driver for ASM.

Oracle RAC and ASM for SAP in SLES

Hello,
We are installing our SAP ERP with Oracle RAC 11.2.0.2 on SLES 11 x86_64. According note 527843 (Oracle RAC support in the SAP environment), this is supported for SAP. But as a requirement ASM Cluster File System must be setup.
But when Oracle Grid is installed, ACFS installation returns the following error:
ACFS-9459: ADVM/ACFS is not supported on this OS version: 'sles-release-11.1-1.152'
So Oracle GRID has been installed without ACFS, so we will not be able to use Oracle Clusterware for providing high availability of SAP.
As this is supposed to be a feasible combination (Oracle RAC 11.2.0.2 with ASM on SLES 11 SP1, Netweaver 7.0), I'm wondering if it is a bug, a lack of documentation or something I'm missing.
Kind regards,
Fermí

Read this below Oracle Note:
ACFS not supported on certain platforms [ID 1075058.1]
oracle@node1:~/app/oracle/product/grid/log/node1> tail -1 alertesiha.log
[client(14083)]CRS-10001:ADVM/ACFS is not supported on SUSE
Then these can be ignored, since ACFS/ADVM may not be supported for your platform. As of this writing, Sun, AIX, SuSE 10 are all supported in 11.2.0.2 only. HP-UX, SuSe 11 and RH6.0, as well as Oracle UEK ((2.6.32-100*) are not yet supported in 11.2.0.2. Keep in mind that this does not prevent your Grid Infrastructure stack (Clusterware and ASM) from starting. This is just an informational message for these platforms
Extract from SAP Note:
RAC 11.2.0.2 (x86 & x86_64 only):
Oracle Clusterware 11.2.0.2 + ASM/ACFS 11.2.0.2 (currently only for SLES10, RHEL5, OL 5.x (without UEK))
Thanks
Srikanth M

11g CRS and ASM, 10.2.0.4 database, how to set up RMAN

Hi all, I am fairly green when it comes to RAC so please bear with me. I have a Linux 2 node RAC environment. The servers are lux148 and lux149. The 2 node cluster is running 11g CRS and ASM. The database is 10.2.0.4. It had to be set up this way in order for IBM DataStage to work. The database name is fictrp0. The instances are fictrp01 (lux148) and fictrp02 (lux149). I am trying to register the database with an RMAN catalog. I am under the impression that I need to register the database (fictrp0) not the instances (fictrp01 and fictrp02) with the RMAN catalog. Is this correct? So I log into lux148 and set my environment so the ORACLE_SID=FICTRP0. From the command line I issue the following:
fictrp0:/u01/app/oracle> rman target / catalog rman102/[email protected]
The command returns the following:
Recovery Manager: Release 10.2.0.4.0 - Production on Wed Oct 29 14:05:50 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database (not started)
connected to recovery catalog database
Is this normal "connected to target database (not started)"? I was expecting to see a DBID=FICTRP0 for the target. If this is typical, how will RMAN know the ID of the database? Should I be trying to register an instance perhaps such as FICTRP01? If so do I need to register both instances (FICTRP01 and FICTRP02)?
Bottom line I am very confused on how RAC and RMAN work together. Any help would be greatly appreciated.

You no need to register the instance,You need to register only the database and database only will have DBID

After bring the Cluster and ASM is up, I'm not able to start the rdbms ins.

I am not able to bring the database up.
Cluster and ASM is up and running.
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/oracle/app/oracle/product/11.1.0/db_1/dbs/initTMISC11G.ora'

That is wre the confusion is: I coud nt find it under O_H/dbs,
However the log file indicates that it is using spfile which is located at :
spfile = +DATA_TIER/dintw10g/parameterfile/spfile_dintw10g.ora
Now it checks only the /dbs directory only i guess.
Could you please how can i bring it up now.
Just for the information: ASM instance is up.

Solaris 10 and Hitachi LUN mapping with Oracle 10g RAC and ASM?

Hi all,
I am working on an Oracle 10g RAC and ASM installation with Sun E6900 servers attached to a Hitachi SAN for shared storage with Sun Solaris 10 as the server OS. We are using Oracle 10g Release 2 (10.2.0.3) RAC clusterware
for the clustering software and raw devices for shared storage and Veritas VxFs 4.1 filesystem.
My question is this:
How do I map the raw devices and LUNs on the Hitachi SAN to Solaris 10 OS and Oracle 10g RAC ASM?
I am aware that with an Oracle 10g RAC and ASM instance, one needs to configure the ASM instance initialization parameter file to set the asm_diskstring setting to recognize the LUNs that are presented to the host.
I know that Sun Solaris 10 uses /dev/rdsk/CwTxDySz naming convention at the OS level for disks. However, how would I map this to Oracle 10g ASM settings?
I cannot find this critical piece of information ANYWHERE!!!!
Thanks for your help!

You don't seem to state categorically that you are using Solaris Cluster, so I'll assume it since this is mainly a forum about Solaris Cluster (and IMHO, Solaris Cluster with Clusterware is better than Clusterware on its own).
Clusterware has to see the same device names from all cluster nodes. This is why Solaris Cluster (SC) is a positive benefit over Clusterware because SC provides an automatically managed, consistent name space. Clusterware on its own forces you to manage either the symbolic links (or worse mknods) to create a consistent namespace!
So, given the SC consistent namespace you simple add the raw devices into the ASM configuration, i.e. /dev/did/rdsk/dXsY. If you are using Solaris Volume Manager, you would use /dev/md/<setname>/rdsk/dXXX and if you were using CVM/VxVM you would use /dev/vx/rdsk/<dg_name>/<dev_name>.
Of course, if you genuinely are using Clusterware on its own, then you have somewhat of a management issue! ... time to think about installing SC?
Tim
---

RAID 10 and ASM

HI
Can someone give the difference between RAID 10 and ASM
From my understanding both is doing stripping of data.
If we are implementing RAID 10 ,then do we need to implement ASM (if yes what is the advantage)
Thanks

user10394804 wrote:
Can someone give the difference between RAID 10 and ASMWhat is the difference between a car and the road? ASM=vehicle. RAID=road.
In other words, ASM is a Storage (or Volume) Manager System that runs on different RAID implementations. The RAID implementation can be at the actual storage layer (hardware RAID).. in which case RAID is external to ASM. Or ASM can itself be used to implement RAID to run on (software RAID).
From my understanding both is doing stripping of data.ASM automatically stripes data across disks (e.g. RAID10 disks) in a diskgroup. RAID10 is a combination of striping and mirroring. So yes, both use striping - but ASM != RAID10. These are 2 very different layers in the storage tier.
If we are implementing RAID 10 ,then do we need to implement ASM (if yes what is the advantage)Yes. ASM manages the storage layer for you. It can perform dynamic load balancing. With ASM 11r2, there are even more features that are introduced that makes ASM a very important part in tying the storage layer effectively and efficiently with the o/s layer and the database layer.
Oracle specifically recommends using ASM for RAC.

Oracle restart and ASM

Hi,
I have noticed following 'strange' behaviour of Oracle Restart and ASM.
starting position:
-bash-3.2 $ crsctl status resource -t
NAME           TARGET STATE        SERVER                   STATE_DETAILS
Local Resources
ora.DATA.dg
               ONLINE ONLINE       oracle-restart
ora.LISTENERASM.lsnr
               ONLINE ONLINE       oracle-restart
ora.asm
               ONLINE ONLINE       oracle-restart           Started
Cluster Resources
ora.cssd
      1        ONLINE ONLINE       oracle-restart
ora.diskmon
      1        ONLINE ONLINE       oracle-restartstep 1:
-bash-3.2 $ srvctl stop asm
-bash-3.2 $ srvctl stop diskgroup -g data
-bash-3.2 $ srvctl disable diskgroup -g datastep 2:
via sqlplus start ASM instance
SQL> startup
ASM instance started
Total System Global Area 283930624 bytes
Fixed Size                  2212656 bytes
Variable Size             256552144 bytes
ASM Cache                  25165824 bytes
ASM diskgroups mounted
ASM diskgroups volume enabled
SQL> select * from v$asm_diskgroup;
GROUP_NUMBER NAME                           SECTOR_SIZE BLOCK_SIZE
ALLOCATION_UNIT_SIZE STATE       TYPE     TOTAL_MB    FREE_MB HOT_USED_MB
COLD_USED_MB REQUIRED_MIRROR_FREE_MB USABLE_FILE_MB OFFLINE_DISKS
COMPATIBILITY
DATABASE_COMPATIBILITY                                       V
           1 DATA                                   512       4096
             1048576 MOUNTED     EXTERN      10236      10177           0
          59                       0          10177             0
GROUP_NUMBER NAME                           SECTOR_SIZE BLOCK_SIZE
ALLOCATION_UNIT_SIZE STATE       TYPE     TOTAL_MB    FREE_MB HOT_USED_MB
COLD_USED_MB REQUIRED_MIRROR_FREE_MB USABLE_FILE_MB OFFLINE_DISKS
COMPATIBILITY
DATABASE_COMPATIBILITY                                       V
11.2.0.0.0
10.1.0.0.0                                                   N
-bash-3.2 $ crsctl status resource -t
NAME           TARGET STATE        SERVER                   STATE_DETAILS
Local Resources
ora.DATA.dg
               OFFLINE OFFLINE      oracle-restart          <== funny !!!
ora.LISTENERASM.lsnr
               ONLINE ONLINE       oracle-restart
ora.asm
               ONLINE ONLINE       oracle-restart           Started
Cluster Resources
ora.cssd
      1        ONLINE ONLINE       oracle-restart
ora.diskmon
      1        ONLINE ONLINE       oracle-restartIs this behaviour a 'feature' or bug?
Anyone had similar experience?
thanks,
goran

Hi,
asm resource is depending on diskgroup resource ... if diskgroup res. is not available, crsctl status shows offline, I would expect asm should be also shown as 'offline' (and brought offline) as they are dependent.
What is the point of managing resources via srvctl when it doesn't take care of dependencies? For me it's wrong.ora.asm : is ASM Instance
ora.*.dg : is Diskgroup
ora.*.dg is dependent of ora.asm, not to the contrary.
I can have more than one diskgroup and want only one diskgroup disabled, so I need the ASM Instance (ora.asm) online.
Important:
If you shut down the database with SQL*Plus, Oracle Restart does not interpret this as a database failure and does not attempt to restart the database.
Similarly, if you shut down the Oracle ASM instance with SQL*Plus or ASMCMD, Oracle Restart does not attempt to restart it.
An important difference between starting a component with SRVCTL and starting it with SQL*Plus (or another utility) is the following:
When you start a component with SRVCTL, any components on which this component depends are automatically started first, and in the proper order.
When you start a component with SQL*Plus (or another utility), other components in the dependency chain are not automatically started; you must ensure that any components on which this component depends are started.
Oracle Restart also manages the weak dependency between database instances and the Oracle Net listener (the listener): When a database instance is started, Oracle Restart attempts to start the listener. If the listener startup fails, then the database is still started. If the listener later fails, Oracle Restart does not shut down and restart any database instances.
It makes no sense Oracle Restart to shut down all environment (databases) because the listener down.
Regards,
Levi Pereira

Cluster and ASM services doesnt start automatically

Hi,
I have configured a 2 node 10g RAC environment (rac, rac2) in RHEL 4 through vmware.
However the cluster services and ASM services do not come up automatically after server reboot. I have to manually bring it up using ./srvctl command.
[root@rac2 bin]# ./crs_stat -t
Name          Type     Target     State     Host
ora....SM1.asm     application     ONLINE     UNKNOWN     rac
ora....AC.lsnr     application     ONLINE     UNKNOWN     rac
ora.rac.gsd     application     ONLINE     UNKNOWN     rac
ora.rac.ons     application     ONLINE     UNKNOWN     rac
ora.rac.vip     application     ONLINE     ONLINE     rac
[email protected]     application     ONLINE     UNKNOWN rac2
ora....C2.lsnr     application     ONLINE     UNKNOWN     rac2
ora.rac2.gsd     application     ONLINE     UNKNOWN     rac2
ora.rac2.ons     application     ONLINE     UNKNOWN     rac2
ora.rac2.vip     application     ONLINE     ONLINE     rac2
Could someone please guide me as to how these services can be brought up automatically upon every reboot?

Normally all services will start automatically, I am not sure how you installed and configured your RAC.
Here i am giving all options.
Option1:-
Re: CRS auto-start
Option2:-
See the below links.
http://jaffardba.blogspot.com/2009/03/how-to-startup-rac-database-services.html
http://www.dannorris.com/2009/03/12/start-database-services-automatically-after-instance-startup/
Option3:-
if you simply want to start the service upon server reboot, put srvctl
command in rc.local script under /etc directory.
Hope this solves your issue.
Regards
Click here to [createdisk, deletedisk and querydisk in ASM|http://www.oracleracexpert.com/2009/09/createdisk-deletedisk-and-querydisk-in.html]
Click here to see [ RAC database Instance hang/restart due to node eviction and Solution.|http://www.oracleracexpert.com/2009/09/ora-29740-evicted-by-member-0-group.html]
Click here for [Cross platform Transportable tablespace using RMAN|http://www.oracleracexpert.com/2009/10/cross-platform-transportable-tablespace.html]
http://www.oracleracexpert.com

RAC and ASM issue

Hi All,
i am getting an error message in asm_alert log file saying "NOTE: ASMB process exiting due to lack of ASM file activity".
This leads to frequent crashing of NODE 1. Please check below detail error and suggest solution.
Thu Mar 24 07:05:11 2011
LMD0 (ospid: 32493) has not called a wait for 94 secs.
GES: System Load is HIGH.
GES: Current load is 55.87 and high load threshold is 20.00
Thu Mar 24 07:06:32 2011
LMD0 (ospid: 32493) has not called a wait for 174 secs.
GES: System Load is HIGH.
GES: Current load is 71.23 and high load threshold is 20.00
Thu Mar 24 07:06:36 2011
+Trace dumping is performing id=[cdmp_20110324070635]+
Thu Mar 24 07:07:49 2011
+Trace dumping is performing id=[cdmp_20110324070635]+
Thu Mar 24 07:08:16 2011
Waiting for clusterware split-brain resolution
Thu Mar 24 07:18:17 2011
Errors in file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_lmon_32484.trc (incident=60073):+
ORA-29740: evicted by member 1, group incarnation 120
Incident details in: /u01/app/oracle/diag/asm/asm/+ASM1/incident/incdir_60073/+ASM1_lmon_32484_i60073.trc+
Thu Mar 24 07:18:19 2011
+Trace dumping is performing id=[cdmp_20110324071819]+
Errors in file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_lmon_32484.trc:+
ORA-29740: evicted by member 1, group incarnation 120
LMON (ospid: 32484): terminating the instance due to error 29740
System state dump is made for local instance
System State dumped to trace file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_diag_32459.trc+
+Trace dumping is performing id=[cdmp_20110324071820]+
Instance terminated by LMON, pid = 32484
Thu Mar 24 07:18:31 2011
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Interface type 1 eth1 172.20.223.0 configured from OCR for use as a cluster interconnect
Interface type 1 eth0 172.20.222.0 configured from OCR for use as a public interface
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/app/oracle/product/11.1.0/asm_1/dbs/arch
Autotune of undo retention is turned on.
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 11.1.0.7.0.
Using parameter settings in server-side pfile /u01/app/oracle/product/11.1.0/asm_1/dbs/initASM1.ora+
System parameters with non-default values:
large_pool_size          = 12M
instance_type            = "asm"
cluster_database         = TRUE
instance_number          = 1
asm_diskstring           = "ORCL:*"
asm_diskgroups           = "REDO01"
asm_diskgroups           = "REDO02"
asm_diskgroups           = "DATA"
asm_diskgroups           = "RECOVERY"
diagnostic_dest          = "/u01/app/oracle"
Cluster communication is configured to use the following interface(s) for this instance
+172.20.223.25+
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
Thu Mar 24 07:18:36 2011
PMON started with pid=2, OS id=23120
Thu Mar 24 07:18:36 2011
VKTM started with pid=3, OS id=23123 at elevated priority
VKTM running at (20)ms precision
Thu Mar 24 07:18:36 2011
DIAG started with pid=4, OS id=23127
Thu Mar 24 07:18:37 2011
PING started with pid=5, OS id=23129
Thu Mar 24 07:18:37 2011
PSP0 started with pid=6, OS id=23131
Thu Mar 24 07:18:37 2011
DIA0 started with pid=7, OS id=23133
Thu Mar 24 07:18:37 2011
LMON started with pid=8, OS id=23135
Thu Mar 24 07:18:37 2011
LMD0 started with pid=9, OS id=23137
Thu Mar 24 07:18:37 2011
LMS0 started with pid=10, OS id=23148 at elevated priority
Thu Mar 24 07:18:37 2011
MMAN started with pid=11, OS id=23152
Thu Mar 24 07:18:38 2011
DBW0 started with pid=12, OS id=23170
Thu Mar 24 07:18:38 2011
LGWR started with pid=13, OS id=23176
Thu Mar 24 07:18:38 2011
CKPT started with pid=14, OS id=23218
Thu Mar 24 07:18:38 2011
SMON started with pid=15, OS id=23224
Thu Mar 24 07:18:38 2011
RBAL started with pid=16, OS id=23237
Thu Mar 24 07:18:38 2011
GMON started with pid=17, OS id=23239
lmon registered with NM - instance id 1 (internal mem no 0)
Reconfiguration started (old inc 0, new inc 124)
ASM instance
List of nodes:
+0 1 2+
Global Resource Directory frozen
* allocate domain 0, invalid = TRUE
Communication channels reestablished
* allocate domain 1, invalid = TRUE
* allocate domain 2, invalid = TRUE
* allocate domain 3, invalid = TRUE
* allocate domain 4, invalid = TRUE
* domain 0 valid = 1 according to instance 1
* domain 1 valid = 1 according to instance 1
* domain 2 valid = 1 according to instance 1
* domain 3 valid = 1 according to instance 1
* domain 4 valid = 1 according to instance 1
Master broadcasted resource hash value bitmaps
Non-local Process blocks cleaned out
LMS 0: 0 GCS shadows cancelled, 0 closed, 0 Xw survived
Set master node info
Submitted all remote-enqueue requests
Dwn-cvts replayed, VALBLKs dubious
All grantable enqueues granted
LMS 0: 0 GCS shadows traversed, 0 replayed
Submitted all GCS remote-cache requests
Post SMON to start 1st pass IR
Fix write in gcs resources
Reconfiguration complete
Thu Mar 24 07:18:40 2011
LCK0 started with pid=18, OS id=23277
ORACLE_BASE from environment = /u01/app/oracle
Thu Mar 24 07:18:41 2011
SQL> ALTER DISKGROUP ALL MOUNT
NOTE: cache registered group DATA number=1 incarn=0xf7063e39
NOTE: cache began mount (not first) of group DATA number=1 incarn=0xf7063e39
NOTE: cache registered group RECOVERY number=2 incarn=0xf7063e3a
NOTE: cache began mount (not first) of group RECOVERY number=2 incarn=0xf7063e3a
NOTE: cache registered group REDO01 number=3 incarn=0xf7163e3b
NOTE: cache began mount (not first) of group REDO01 number=3 incarn=0xf7163e3b
NOTE: cache registered group REDO02 number=4 incarn=0xf7163e3c
NOTE: cache began mount (not first) of group REDO02 number=4 incarn=0xf7163e3c
NOTE:Loaded lib: /opt/oracle/extapi/32/asm/orcl/1/libasm.so
NOTE: Assigning number (1,0) to disk (ORCL:ASM_DATA1)
NOTE: Assigning number (1,1) to disk (ORCL:ASM_DATA2)
NOTE: Assigning number (2,0) to disk (ORCL:ASM_RECO1)
NOTE: Assigning number (3,0) to disk (ORCL:ASM_LOG1)
NOTE: Assigning number (4,0) to disk (ORCL:ASM_LOG2)
kfdp_query(): 5
kfdp_queryBg(): 5
NOTE: cache opening disk 0 of grp 1: DATA1 label:ASM_DATA1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache opening disk 1 of grp 1: DATA2 label:ASM_DATA2
NOTE: cache mounting (not first) group 1/0xF7063E39 (DATA)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 1
NOTE: LGWR attempting to mount thread 1 for diskgroup 1
NOTE: LGWR mounted thread 1 for disk group 1
NOTE: opening chunk 1 at fcn 0.10794571 ABA
NOTE: seq=81 blk=1313
NOTE: cache mounting group 1/0xF7063E39 (DATA) succeeded
NOTE: cache ending mount (success) of group DATA number=1 incarn=0xf7063e39
kfdp_query(): 6
kfdp_queryBg(): 6
NOTE: cache opening disk 0 of grp 2: RECO1 label:ASM_RECO1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 2/0xF7063E3A (RECOVERY)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 2
NOTE: LGWR attempting to mount thread 1 for diskgroup 2
NOTE: LGWR mounted thread 1 for disk group 2
NOTE: opening chunk 1 at fcn 0.10436377 ABA
NOTE: seq=48 blk=4298
NOTE: cache mounting group 2/0xF7063E3A (RECOVERY) succeeded
NOTE: cache ending mount (success) of group RECOVERY number=2 incarn=0xf7063e3a
kfdp_query(): 7
kfdp_queryBg(): 7
NOTE: cache opening disk 0 of grp 3: LOG1 label:ASM_LOG1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 3/0xF7163E3B (REDO01)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 3
NOTE: LGWR attempting to mount thread 1 for diskgroup 3
NOTE: LGWR mounted thread 1 for disk group 3
NOTE: opening chunk 1 at fcn 0.229332 ABA
NOTE: seq=30 blk=10690
NOTE: cache mounting group 3/0xF7163E3B (REDO01) succeeded
NOTE: cache ending mount (success) of group REDO01 number=3 incarn=0xf7163e3b
kfdp_query(): 8
kfdp_queryBg(): 8
NOTE: cache opening disk 0 of grp 4: LOG2 label:ASM_LOG2
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 4/0xF7163E3C (REDO02)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 4
NOTE: LGWR attempting to mount thread 1 for diskgroup 4
NOTE: LGWR mounted thread 1 for disk group 4
NOTE: opening chunk 1 at fcn 0.225880 ABA
NOTE: seq=30 blk=10556
NOTE: cache mounting group 4/0xF7163E3C (REDO02) succeeded
NOTE: cache ending mount (success) of group REDO02 number=4 incarn=0xf7163e3c
kfdp_query(): 9
kfdp_queryBg(): 9
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 1
SUCCESS: diskgroup DATA was mounted
kfdp_query(): 10
kfdp_queryBg(): 10
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 2
SUCCESS: diskgroup RECOVERY was mounted
kfdp_query(): 11
kfdp_queryBg(): 11
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 3
SUCCESS: diskgroup REDO01 was mounted
kfdp_query(): 12
kfdp_queryBg(): 12
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 4
SUCCESS: diskgroup REDO02 was mounted
SUCCESS: ALTER DISKGROUP ALL MOUNT
Thu Mar 24 08:26:28 2011
Starting background process ASMB
Thu Mar 24 08:26:28 2011
ASMB started with pid=20, OS id=9597
NOTE: ASMB process exiting due to lack of ASM file activity for 5 seconds
Thu Mar 24 08:27:39 2011
Starting background process ASMB
Thu Mar 24 08:27:39 2011
ASMB started with pid=25, OS id=10735
NOTE: ASMB process exiting due to lack of ASM file activity for 5 seconds
+[oracle@qa1crmrac1 trace]$ tail -1500 alert_ASM1.log
Thu Mar 24 07:05:11 2011
LMD0 (ospid: 32493) has not called a wait for 94 secs.
GES: System Load is HIGH.
GES: Current load is 55.87 and high load threshold is 20.00
Thu Mar 24 07:06:32 2011
LMD0 (ospid: 32493) has not called a wait for 174 secs.
GES: System Load is HIGH.
GES: Current load is 71.23 and high load threshold is 20.00
Thu Mar 24 07:06:36 2011
+Trace dumping is performing id=[cdmp_20110324070635]+
Thu Mar 24 07:07:49 2011
+Trace dumping is performing id=[cdmp_20110324070635]+
Thu Mar 24 07:08:16 2011
Waiting for clusterware split-brain resolution
Thu Mar 24 07:18:17 2011
Errors in file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_lmon_32484.trc (incident=60073):+
ORA-29740: evicted by member 1, group incarnation 120
Incident details in: /u01/app/oracle/diag/asm/asm/+ASM1/incident/incdir_60073/+ASM1_lmon_32484_i60073.trc+
Thu Mar 24 07:18:19 2011
+Trace dumping is performing id=[cdmp_20110324071819]+
Errors in file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_lmon_32484.trc:+
ORA-29740: evicted by member 1, group incarnation 120
LMON (ospid: 32484): terminating the instance due to error 29740
System state dump is made for local instance
System State dumped to trace file /u01/app/oracle/diag/asm/asm/+ASM1/trace/+ASM1_diag_32459.trc+
+Trace dumping is performing id=[cdmp_20110324071820]+
Instance terminated by LMON, pid = 32484
Thu Mar 24 07:18:31 2011
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Interface type 1 eth1 172.20.223.0 configured from OCR for use as a cluster interconnect
Interface type 1 eth0 172.20.222.0 configured from OCR for use as a public interface
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/app/oracle/product/11.1.0/asm_1/dbs/arch
Autotune of undo retention is turned on.
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 11.1.0.7.0.
Using parameter settings in server-side pfile /u01/app/oracle/product/11.1.0/asm_1/dbs/initASM1.ora+
System parameters with non-default values:
large_pool_size          = 12M
instance_type            = "asm"
cluster_database         = TRUE
instance_number          = 1
asm_diskstring           = "ORCL:*"
asm_diskgroups           = "REDO01"
asm_diskgroups           = "REDO02"
asm_diskgroups           = "DATA"
asm_diskgroups           = "RECOVERY"
diagnostic_dest          = "/u01/app/oracle"
Cluster communication is configured to use the following interface(s) for this instance
+172.20.223.25+
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
Thu Mar 24 07:18:36 2011
PMON started with pid=2, OS id=23120
Thu Mar 24 07:18:36 2011
VKTM started with pid=3, OS id=23123 at elevated priority
VKTM running at (20)ms precision
Thu Mar 24 07:18:36 2011
DIAG started with pid=4, OS id=23127
Thu Mar 24 07:18:37 2011
PING started with pid=5, OS id=23129
Thu Mar 24 07:18:37 2011
PSP0 started with pid=6, OS id=23131
Thu Mar 24 07:18:37 2011
DIA0 started with pid=7, OS id=23133
Thu Mar 24 07:18:37 2011
LMON started with pid=8, OS id=23135
Thu Mar 24 07:18:37 2011
LMD0 started with pid=9, OS id=23137
Thu Mar 24 07:18:37 2011
LMS0 started with pid=10, OS id=23148 at elevated priority
Thu Mar 24 07:18:37 2011
MMAN started with pid=11, OS id=23152
Thu Mar 24 07:18:38 2011
DBW0 started with pid=12, OS id=23170
Thu Mar 24 07:18:38 2011
LGWR started with pid=13, OS id=23176
Thu Mar 24 07:18:38 2011
CKPT started with pid=14, OS id=23218
Thu Mar 24 07:18:38 2011
SMON started with pid=15, OS id=23224
Thu Mar 24 07:18:38 2011
RBAL started with pid=16, OS id=23237
Thu Mar 24 07:18:38 2011
GMON started with pid=17, OS id=23239
lmon registered with NM - instance id 1 (internal mem no 0)
Reconfiguration started (old inc 0, new inc 124)
ASM instance
List of nodes:
+0 1 2+
Global Resource Directory frozen
* allocate domain 0, invalid = TRUE
Communication channels reestablished
* allocate domain 1, invalid = TRUE
* allocate domain 2, invalid = TRUE
* allocate domain 3, invalid = TRUE
* allocate domain 4, invalid = TRUE
* domain 0 valid = 1 according to instance 1
* domain 1 valid = 1 according to instance 1
* domain 2 valid = 1 according to instance 1
* domain 3 valid = 1 according to instance 1
* domain 4 valid = 1 according to instance 1
Master broadcasted resource hash value bitmaps
Non-local Process blocks cleaned out
LMS 0: 0 GCS shadows cancelled, 0 closed, 0 Xw survived
Set master node info
Submitted all remote-enqueue requests
Dwn-cvts replayed, VALBLKs dubious
All grantable enqueues granted
LMS 0: 0 GCS shadows traversed, 0 replayed
Submitted all GCS remote-cache requests
Post SMON to start 1st pass IR
Fix write in gcs resources
Reconfiguration complete
Thu Mar 24 07:18:40 2011
LCK0 started with pid=18, OS id=23277
ORACLE_BASE from environment = /u01/app/oracle
Thu Mar 24 07:18:41 2011
SQL> ALTER DISKGROUP ALL MOUNT
NOTE: cache registered group DATA number=1 incarn=0xf7063e39
NOTE: cache began mount (not first) of group DATA number=1 incarn=0xf7063e39
NOTE: cache registered group RECOVERY number=2 incarn=0xf7063e3a
NOTE: cache began mount (not first) of group RECOVERY number=2 incarn=0xf7063e3a
NOTE: cache registered group REDO01 number=3 incarn=0xf7163e3b
NOTE: cache began mount (not first) of group REDO01 number=3 incarn=0xf7163e3b
NOTE: cache registered group REDO02 number=4 incarn=0xf7163e3c
NOTE: cache began mount (not first) of group REDO02 number=4 incarn=0xf7163e3c
NOTE:Loaded lib: /opt/oracle/extapi/32/asm/orcl/1/libasm.so
NOTE: Assigning number (1,0) to disk (ORCL:ASM_DATA1)
NOTE: Assigning number (1,1) to disk (ORCL:ASM_DATA2)
NOTE: Assigning number (2,0) to disk (ORCL:ASM_RECO1)
NOTE: Assigning number (3,0) to disk (ORCL:ASM_LOG1)
NOTE: Assigning number (4,0) to disk (ORCL:ASM_LOG2)
kfdp_query(): 5
kfdp_queryBg(): 5
NOTE: cache opening disk 0 of grp 1: DATA1 label:ASM_DATA1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache opening disk 1 of grp 1: DATA2 label:ASM_DATA2
NOTE: cache mounting (not first) group 1/0xF7063E39 (DATA)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 1
NOTE: LGWR attempting to mount thread 1 for diskgroup 1
NOTE: LGWR mounted thread 1 for disk group 1
NOTE: opening chunk 1 at fcn 0.10794571 ABA
NOTE: seq=81 blk=1313
NOTE: cache mounting group 1/0xF7063E39 (DATA) succeeded
NOTE: cache ending mount (success) of group DATA number=1 incarn=0xf7063e39
kfdp_query(): 6
kfdp_queryBg(): 6
NOTE: cache opening disk 0 of grp 2: RECO1 label:ASM_RECO1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 2/0xF7063E3A (RECOVERY)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 2
NOTE: LGWR attempting to mount thread 1 for diskgroup 2
NOTE: LGWR mounted thread 1 for disk group 2
NOTE: opening chunk 1 at fcn 0.10436377 ABA
NOTE: seq=48 blk=4298
NOTE: cache mounting group 2/0xF7063E3A (RECOVERY) succeeded
NOTE: cache ending mount (success) of group RECOVERY number=2 incarn=0xf7063e3a
kfdp_query(): 7
kfdp_queryBg(): 7
NOTE: cache opening disk 0 of grp 3: LOG1 label:ASM_LOG1
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 3/0xF7163E3B (REDO01)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 3
NOTE: LGWR attempting to mount thread 1 for diskgroup 3
NOTE: LGWR mounted thread 1 for disk group 3
NOTE: opening chunk 1 at fcn 0.229332 ABA
NOTE: seq=30 blk=10690
NOTE: cache mounting group 3/0xF7163E3B (REDO01) succeeded
NOTE: cache ending mount (success) of group REDO01 number=3 incarn=0xf7163e3b
kfdp_query(): 8
kfdp_queryBg(): 8
NOTE: cache opening disk 0 of grp 4: LOG2 label:ASM_LOG2
NOTE: F1X0 found on disk 0 fcn 0.0
NOTE: cache mounting (not first) group 4/0xF7163E3C (REDO02)
kjbdomatt send to node 1
kjbdomatt send to node 2
NOTE: attached to recovery domain 4
NOTE: LGWR attempting to mount thread 1 for diskgroup 4
NOTE: LGWR mounted thread 1 for disk group 4
NOTE: opening chunk 1 at fcn 0.225880 ABA
NOTE: seq=30 blk=10556
NOTE: cache mounting group 4/0xF7163E3C (REDO02) succeeded
NOTE: cache ending mount (success) of group REDO02 number=4 incarn=0xf7163e3c
kfdp_query(): 9
kfdp_queryBg(): 9
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 1
SUCCESS: diskgroup DATA was mounted
kfdp_query(): 10
kfdp_queryBg(): 10
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 2
SUCCESS: diskgroup RECOVERY was mounted
kfdp_query(): 11
kfdp_queryBg(): 11
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 3
SUCCESS: diskgroup REDO01 was mounted
kfdp_query(): 12
kfdp_queryBg(): 12
NOTE: Instance updated compatible.asm to 10.1.0.0.0 for grp 4
SUCCESS: diskgroup REDO02 was mounted
SUCCESS: ALTER DISKGROUP ALL MOUNT
Thu Mar 24 08:26:28 2011
Starting background process ASMB
Thu Mar 24 08:26:28 2011
ASMB started with pid=20, OS id=9597
NOTE: ASMB process exiting due to lack of ASM file activity for 5 seconds
Thu Mar 24 08:27:39 2011
Starting background process ASMB
Thu Mar 24 08:27:39 2011
ASMB started with pid=25, OS id=10735
NOTE: ASMB process exiting due to lack of ASM file activity for 5 seconds
Do i need to set the compatible parameter?
Regards,
Vish

It looks to me like your server is absolutely buried, and ASM may just be an innocent bystander. What is going on in the database when this happens? Also, run sar samples at 30 second intervals up to when this happens to see what is happening. It's overhead, but you need to find what is causing the problem with the server(s).
Are you swapping?

Patching Strategy for CRS and ASM homes

I'm fairly new to RAC/ASM and haven't performed any patch set upgrades yet. Back in the simple days when I wanted to apply a patch set to a database, say from 10.2.0.4 to 10.2.0.5, I would create a brand new Oracle home ahead of time and apply the patch set to it. I'd name my homes like this:
/opt/oracle/product/10.2.0.4/db1
/opt/oracle/product/10.2.0.5/db1
During the maintenance window I would change /etc/oratab to point the database to the new 10.2.0.5 and complete the database upgrade scripts. The advantages of this strategy:
1 - Less risk installing software as nothing uses the new home yet. If something goes wrong in the install, no big deal. Research the problem and try again without being under the stress of a defined maintenance window.
2 - No need to backup old home for back-out purposes.
3 - Less time required for database to be down during actual patch window since Oracle Installer does not need to run.
Now with CRS and ASM, is there a way to pre-stage a new home for those, but not have them "active" to the node until later during the maintenance window?
For ASM, it seems like it would be possible to treat the same way as database and simply update ASM SID in /etc/oratab
+ASM1:/opt/oracle/product/10.2.0.5/asm1
but I'm not totally confident in that as I'm afraid the CRS home may already have references to the ASM home in the cluster registry.
For CRS, it seems like the home is pretty well hard-wired into the node startup scripts and installing a brand new CRS home will probably disrupt the running CRS home.
Any thoughts about this?

Hi,
user5448593 wrote:
I'm fairly new to RAC/ASM and haven't performed any patch set upgrades yet. Back in the simple days when I wanted to apply a patch set to a database, say from 10.2.0.4 to 10.2.0.5, I would create a brand new Oracle home ahead of time and apply the patch set to it.
Now with CRS and ASM, is there a way to pre-stage a new home for those, but not have them "active" to the node until later during the maintenance window?Although you have not mentioned the version you are actually on, it is a quite up-to-date question and dilemma.
Starting with 11.2 for Grid Infrastructure only "out-of-place" patchset upgrades are supported.
>
For ASM, it seems like it would be possible to treat the same way as database and simply update ASM SID in /etc/oratab
+ASM1:/opt/oracle/product/10.2.0.5/asm1
but I'm not totally confident in that as I'm afraid the CRS home may already have references to the ASM home in the cluster registry.
For CRS, it seems like the home is pretty well hard-wired into the node startup scripts and installing a brand new CRS home will probably disrupt the running CRS home.
Any thoughts about this?As of 11gR2 the ASM is part of the Grid Infrastructure, therefore it is running from the same home and not recommended to separate them. (although you can do that)
By the way, what is your upgrade path? It could be easier to answer your questions if we knew that as there has been a quite a few enhancements and changes in the upgrade/patching process from 10g to 11g. (even between 11gR1 and 11gR2)
Regards,
Jozsef

ACFS and ASM

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