An error occurred while using CVU to check shared storage.

An error occurred while using CVU to check shared storage.

Today, when CVU is used to check shared storage, a problem occurs:

[grid@rac1 ~]$ cluvfy comp ssa -n rac1,rac2 -t data -verbose Verifying shared storage accessibility Checking shared storage accessibility...WARNING: PRVF-7017 : Package cvuqdisk not installed        rac1No shared storage foundShared storage check was successful on nodes "rac2,rac1"Verification of shared storage accessibility was successful. 

 

After warning, the shared storage is not found. After I install the package:

 

[grid@rac2 ~]$ cluvfy comp ssa -n rac1,rac2 -verboseVerifying shared storage accessibility Checking shared storage accessibility...  Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdb                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdc                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdd                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sde                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdf                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdg                              rac2 rac1                 Disk                                  Sharing Nodes (2 in count)  ------------------------------------  ------------------------  /dev/sdh                              rac2 rac1               Shared storage check was successful on nodes "rac2,rac1"Verification of shared storage accessibility was successful.

So, what is the use of cvuqdisk-1.0.7-1.rpm? (Excerpt: 316817.1)

cvuqdisk is applicable on Linux platforms only.CVU requires root privilege to gather information about the scsi disks during discovery. A small binary uses the setuid mechanism to query disk information as root. Note that this process is purely a read-only process with no adverse impact on the system. To make this secured, this binary is packaged in the cvuqdisk rpm and need root privilege to install on a machine.When this package is installed on all the nodes, CVU performs discovery and shared storage accessibility checks for scsi disks. Otherwise, it complains about the missing package 'cvuqdisk'. You can disable the scsi device check feature by setting the CV_RAW_CHECK_ENABLED to FALSE in $CV_HOME/cv/admin/cvu_config file. CVU will not complain about the missing rpm if this variable is set to false.

The truth is clear!