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IT08430: PERMISSION DENIED ERROR AFTER SNAPSHOT MOUNT WITH NFS EXPORT.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • After mounting a Linux virtual machine, choosing to create
    NFS export, root is not able to view anything owned by root
    on the mount.
    This situation occurs when using the DP for VMware
    file level restore. But can also be seen outside of TSM.
    Steps to recreate:
    1 - Using the VE GUI to mount a Linux snapshot.
    Choose the option to automatically create the NFS export.
    2 - Log into the Linux VM as ROOT, mount the volume that was
    created
    during the NFS export.
    3 - Attempt to cd (change directory) into a directory owned by
    root.
    Example of the error:
    bash: cd: mount-dir/testdir/: Permission denied
    This problem should only occur on directories with the
    following permissions:
    dr-xr-x--- 2 root root
    .
    Note: Reading anything owned by ROOT, on the mounted snapshot,
    on the mount proxy machine is successful. This problem only
    occurs
    on the machine that mounted the export.
    This problem occurs during the export command. The export is
    being done with  options "ro,nohide,crossmnt"" which are not
    sufficient.
    Initial impact: Medium
    Versions affected: 7.1.1  Linux only.
    

Local fix

  • Step 1- mount the Linux VM, but don't choose to create the
    export.
    Step 2- after the mount is created, manually create the export.
    Example: exportfs -i -o ro,nohide,crossmnt,no_root_squash
    <target machine>:<local path to be exported>
    Step 3- mount the export on the target Linux machine.
    Step 4 - umount the file system on the target Linux machine
    Step 5 -  remove export with command 'export -u <target
    machine>:<local path to be exported>
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Tivoli Storage Manager for Virtual Environments version      *
    * 7.1.1 and 7.1.2 running on all Microsoft Windows x64 and     *
    * Linux x86_64 platforms                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available.                           *
    * This issue is projected to be fixed in the Tivoli Storage    *
    * Manager Client on Linux x86_64  in level 7.1.3.              *
    * Note 1: The Tivoli Storage Manager (TSM) Client is a         *
    * prerequisite to using the Data Protection for VMware. In     *
    * Data Protection for VMware environments, the TSM Client is   *
    * also known as the data mover.                                *
    * Note 2: This is subject to change at the discretion of IBM.  *
    ****************************************************************
    

Problem conclusion

  • The problem has been fixed and no longer occurs.
    

Temporary fix

  • -Tivoli Storage Manager Client on Linux x86_64 version 7.1.2.3
    
    Note: Until a Data Protection for VMware packaged fix of a
    fixing Tivoli Storage Manager Client level is available, Data
    Protection for VMware customers can install an use a fixed level
    of the the Tivoli Storage Manager Client in their environment.
    

Comments

APAR Information

  • APAR number

    IT08430

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    71L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-04-20

  • Closed date

    2015-06-10

  • Last modified date

    2015-06-10

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Modules/Macros

  • dsmagent
    

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R71L PSY

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"71L","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
07 January 2022