Kludge: Mounting ACFS Thought Shellscript

Just the script. The history is here.
This is a “workaround” script. As always, is recommended to use Oracle Restart, like I posted here.

#!/bin/sh
$GRID_HOME/bin/srvctl add filesystem -d /dev/asm/dbhome-270 -g 'DGHOME' -v DBHOME -m /oracle/db -u oracle
if [ $? = "0" -o $? = "2" ]; then
$GRID_HOME/bin/srvctl start filesystem -d /dev/asm/dbhome-270
if [ $? = "0" ]; then
chown oracle:oinstall /oracle/db
chmod 775 /oracle/db
$GRID_HOME/bin/srvctl status filesystem -d /dev/asm/dbhome-270
exit 0
fi
$GRID_HOME/bin/srvctl status filesystem -d /dev/asm/dbhome-270
fi

There is a good post ACFS and ACFS restart scripting:
https://levipereira.wordpress.com/2011/07/28/oracle-acfs-filesystem-managed-by-ohas-on-oracle-restart/

See ya!

Matheus.

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CRSCTL: AUTO_START of Cluster Services (ACFS)

As I sad long time ago (Manually Mounting ACFS)… Here is it:

To set autostart of a resource (in my case an ACFS) by CRSCTL, here the simple example:

# Check How it is currently configured:

[root@db1database1p bin]# ./crs_stat -p ora.dghome.dbhome.acfs |grep AUTO_START
AUTO_START=restore

# Set Autostart (and check):

[root@db1database1p bin]# ./crsctl modify resource ora.dghome.dbhome.acfs -attr AUTO_START=always
[root@db1database1p bin]# ./crs_stat -p ora.dghome.dbhome.acfs |grep AUTO_START
AUTO_START=always

It can be done also with “AUTO_START=1”. We have 3 possibilities (always, restore and never).

# KB
http://docs.oracle.com/cd/E11882_01/rac.112/e16794/resatt.htm#CWADD91444

Matheus.

Error: Starting ACFS in RHEL 6 (Can’t exec “/usr/bin/lsb_release”)

Quick tip:

# Error:
[root@db1gridserver1 bin]# ./acfsload start -s
Can’t exec “/usr/bin/lsb_release”: No such file or directory at /grid/product/11.2.0/lib/osds_acfslib.pm line 511.
Use of uninitialized value $LSB_RELEASE in split at /grid/product/11.2.0/lib/osds_acfslib.pm line 516.

# Solution:
[root@db1gridserver1 bin]# yum install redhat-lsb-core-4.0

Note: Bug 17359415 – Linux: Configuring ACFS reports that cannot execute ‘/usr/bin/lsb_release’ (Doc ID 17359415.8)

Matheus.

Manually Mounting ACFS

A server rebooted and I needed to remount the ACFS where the Oracle Home is. About that:
Today’s post: Manually Mounting ACFS
Tomorrow’s Someday’s post: Kludge: Mounting ACFS Thought Shellscript
Day Before Tomorrow’s Another Day’s post: Auto Mounting Cluster Services Through Oracle Restart

But, first, some usefull links:
– ACFS Introduction
– ACFS Advanced
– ACFS Command-Line Utilities

# Manually Mounting ACFS
Checked my $ORACLE_HOME (mounted on ACFS) is not available to start the database. Checked ACFS service is down. So, let’s do all the process:

# Starting ACFS
[root@db1host1p ~]$ $GRID_HOME/bin/acfsload start -s

# Volumes OFFLINE: Let’s Enable it:
[root@db1host1p ~]$ $GRID_HOME/bin/crsctl stat res -t |grep acfs
ora.dghome.sephome.acfs
ONLINE OFFLINE db1host1p
[root@db1host1p ~]$ su - grid
[grid@db1host1p ~]$ asmcmd
ASMCMD> volinfo -a
Diskgroup Name: DGHOME
Volume Name: LVHOME
Volume Device: /dev/asm/lvhome-270
State: DISABLED
Size (MB): 10240
Resize Unit (MB): 32
Redundancy: MIRROR
Stripe Columns: 4
Stripe Width (K): 128
Usage: ACFS
Mountpath: /oracle/MYDB
ASMCMD> volenable -a
ASMCMD> volinfo -a
Diskgroup Name: DGHOME
Volume Name: LVHOME
Volume Device: /dev/asm/lvhome-270
State: ENABLED
Size (MB): 10240
Resize Unit (MB): 32
Redundancy: MIRROR
Stripe Columns: 4
Stripe Width (K): 128
Usage: ACFS
Mountpath: /oracle/MYDB

[root@db1host1p ~]$ $GRID_HOME/bin/crsctl stat res -t |grep acfs
ora.dghome.sephome.acfs
ONLINE ONLINE db1host1p mounted on /oracle/MYDB
ONLINE ONLINE db2host2p mounted on /oracle/MYDB

# As root, let’s mount it:
[root@db1host1p ~]# mount -t acfs /dev/asm/lvhome-270 /oracle/MYDB

# Then, with the $ORACLE_HOME available:
[oracle@db1host1p ~]$ srvctl start instance -d MYDB -i MYDB001

Matheus.

Unplug/Plug PDB between different Clusters

Everyone test, write and show how to move pluggable databases between containers (CBDs) in the same Cluster, but a little more than a few write/show about move pluggable databases between different clusters, with isolated storage. So, let’s do that:

OBS: Just to stay easy to understand, this post is about migration of a Pluggable Database (BACENDB) from a cluster named ORAGRID12C and a Container Database named INFRACDB to the Cluster CLBBGER12, into Container CDBBGER.
(Click on images to get it bigger)

1. Access the container INFRACDB (Cluster GRID12C) and List the PDBs: 1

2. Shutdown BACENDB:
2
(of course it does’n worked with a normal shutdown. I don’t know what I was thinking… haha) 3

3. Unplug BACENDB (PDB) to XML (must be done from Pluggable, as you see…) 4
4. Created an ACFS (180G) to use as “migration area” mounted on “/migration/” in ORAGRID12C cluster:
5

5. Copy Datafiles and Tempfiles for the “/migration” through ASMCMD cp 6

6. ACFS exported and mounted as NFS on destination (CLBBGER12): 7
8

7. Pluggable created (Plugged) on new Cluster (CDBBGER), using “MOVE” FILE_NAME_CONVERT, to send the files to diskgroup +DGCDBBGER:

9

7.1 How it looks like on alert.log?

10

7.2 How about the Datafiles?

11

7.3 Checking database by remote sqlplus:

13

8. Creating the services as needed:

12

9. Dropping Pluggable from INFRACDB:

14

That’s Okey? Of course there is a few other ways to copy the files from an infra to another, like scp rather than mount.nfs, RMAN Copy, or other possibilities…

By the way, one of the restrictions of pluggable migration is to use the same endian format. Buut it’s possible to use RMAN Convert Plataform and convert datafiles to a filesystem, isn’t?
So, I guess it’s not a necessary limitation. Must to test an write another post… haha

About the post, this link helped, but, again, don’t mention about “another” cluster/infra/storage.

Matheus.