cluvfy comp ssa

Use the cluvfy comp ssa component verification command to discover and check the sharing of the specified storage locations. CVU checks sharing for nodes in the node list.

Syntax

cluvfy comp ssa [-n node_list | -flex -hub hub_list [-leaf leaf_list]]
  [-s storage_path_list] [-t {software | data | ocr_vdisk}]  [-asm] [-asmdev asm_device_list]
  [-r {10.1 | 10.2 | 11.1 | 11.2 | 12.1}] [-verbose]

Parameters

Table A-23 cluvfy comp ssa Command Parameters

Parameter	Description
-n node_list \| -flex -hub hub_list -leaf leaf_list	The comma-delimited list of nondomain qualified node names on which to conduct the verification. Optionally, you can check sharing of storage locations on Hub and Leaf Nodes by specifying either `-hub`, followed by a comma-delimited list of Hub Node names or `-leaf`, followed by a comma-delimited list of Leaf Node names, or both. If you do not specify any of these options, then CVU checks only the local node.
-s storage_path_list	A comma-delimited list of storage paths, for example, `/dev/sda,/dev/sdb`. If you do not specify the `-s` option, then CVU discovers supported storage types and checks sharing for each of them.
-t {software \| data \| ocr_vdisk}	The type of Oracle files (either Oracle Grid Infrastructure binaries or Oracle Database binaries) that will be stored on the storage device. If you do not specify `-t`, then CVU discovers or checks the `data` file type.
-asm	Specify this parameter to discover all storage suitable for use by Oracle ASM.
-asmdev asm_device_list	A comma-delimited list of Oracle ASM devices for which you want to check sharing of storage locations. If the list contains shell metacharacters, then enclose the list in double quotation marks (`""`).
-r {10.1 \| 10.2 \| 11.1 \| 11.2 \| 12.1}	Optionally, you can specify the release number of the product for which you are running the verification. If you do not specify `-r`, then CVU runs the verification for `12.1`.
-verbose	CVU prints detailed output.

Usage Notes

The current release of cluvfy has the following limitations on Linux regarding shared storage accessibility check.
- Currently NAS storage and OCFS2 (version 1.2.1 or higher) are supported.
  
  See Also:
  
  Oracle Grid Infrastructure Installation Guide for more information about NAS mount options
- When checking sharing on NAS, cluvfy commands require that you have write permission on the specified path. If the cluvfy user does not have write permission, cluvfy reports the path as not shared.
To perform discovery and shared storage accessibility checks for SCSI disks on Linux systems, CVU requires the CVUQDISK package. If you attempt to use CVU and the CVUQDISK package is not installed on all of the nodes in your Oracle RAC environment, then CVU responds with an error. See "Shared Disk Discovery on Red Hat Linux" for information about how to install the CVUQDISK package.

Examples

Example 1: Discovering All of the Available Shared Storage Systems on Your System

To discover all of the shared storage systems available on your system:

cluvfy comp ssa -n all -verbose

Example 2: Using the Oracle ASM Discovery String Check

To verify the Oracle ASM discovery string:

cluvfy comp ssa -n node1,node2 -asm -asmdev "/dev/xda*"

Example 3: Verifying the Accessibility of a Specific Storage Location

You can verify the accessibility of specific storage locations, such as an Oracle ASM disk group called OCR13, for storing data files for all the cluster nodes by running a command similar to the following:

cluvfy comp ssa -n all -s OCR13

This command produces output similar to the following:

Verifying shared storage acessibility

Checking shared storage accessibility...

"OCR13" is shared


Shared storage check was successful on nodes "node1,node2,node3,node4"

Verification of shared storage accessibility was successful.