ocfs2cdsl(8)

NAME

ocfs2cdsl - Create context dependent symbolic link (CDSL).

SYNOPSIS

ocfs2cdsl [-cfnqvV] [-t hostname|mach|os|nodenum] filename

DESCRIPTION

ocfs2cdsl is used to create a context dependent symbolic

link for filename (file or directory) for a node. A CDSL filename

will have its own image for a specific node, but a common name in

the OCFS2. It is very important that the ocfs2ctl command to be

issued on all nodes that are part of the cluster and to any sub

sequent nodes that are added. If the ocfs2cdsl command is not ex

ecuted in some of the nodes, the cdsl directory will not be ac

cessible by them.

OPTIONS

-t hostname|mach|os|nodenum

hostname|mach|os|nodenum - One of these options

should be specified in order to create the CDSL. As for informa

tion, hostname would be the same as the output of "uname -n",

mach would be the output of "uname -m", os would the the output

of "uname -o" and nodenum would be the global node number for the

hostname in the /etc/ocfs2/cluster.conf file.

-c During the creation of the CDSL, if the file does

exist, the data will be copied to the new location.

-f Force the execution of the command.

-n Will perform a check of all options and motions,

but will not perform any change on disk.

-q Execute ocfs2cdsl in quiet mode.

-v Execute ocfs2cdsl in verbose mode.

-V Print version and exit.

EXAMPLE

If one wants to have a shared ORACLE_HOME installed on an

OCFS2 partition, and wants to have node specific configuration

filename in the same shared ORACLE_HOME, one can have the

filename created by ocfs2cdsl. A good example would be the di

rectory $ORACLE_HOME/network/agent. Node1 could have its own view

of the directory, which is different from Node2 view, but having

the exact same full pathname.

# ocfs2cdsl -c -t hostname $ORACLE_HOME/network/agent

In the example above, a CDSL directory will be created and

the contents of the agent directory will copied to the new loca

tion. If the same is to be executed on all nodes, and assuming

that no changes are made to the directory, each one of the nodes

would have the exact same view of the agent directory. In case of

change in the agent directory after the creation of the CDSL, on

ly the node performing the change would be able to see it. All

other nodes would still have the same initial view of the agent

directory.

SEE ALSO

mkfs.ocfs2(8) fsck.ocfs2(8) tunefs.ocfs2(8)

mounted.ocfs2(8) ocfs2console(8) debugfs.ocfs2(8)

AUTHORS

Oracle Corporation

COPYRIGHT

Copyright © 2004, 2005 Oracle. All rights reserved.

Version 1.2.1 March 2005

ocfs2cdsl(8)