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Troubleshooting Restore - AIX File System

The following sections provide information on some of the troubleshooting scenarios related to restore:

Browse and Restore

  • Symptom

    Some of the files included in the user-defined subclient are not restored.

    Solution

    You may be performing the restore of user-defined subclient along with the restore of default subclient.

    When you are recovering data backed up by the default subclient, you cannot recover the data backed up by a user-defined subclient.

  • Symptom

    Browse from default subclient displays No Backup at Time error.

    Solution

    Ensure that you do not include the root directory (/) as the subclient content.

    When performing point-in-time restore from the default subclient, include the data/folders under the root directory as the subclient content.

  • Symptom

    Restore fails when trying to restore to a Unix FAT32 directory.

    Solution

    You may be restoring the full contents of a Unix directory that contains more than 32,767 files to a single Unix FAT32 directory.

    The number of entries in a single FAT32 directory cannot exceed 32,767.

  • Symptom

    Restore fails when trying to restore a running executable file.

    Solution

    Ensure that you are not including any running executable files in the restore operation.

Installation

  • Symptom

    Error while loading shared libraries.

    Solution

    On Linux clients, the below error appears when we run any process or service: 

    <process name>: error while loading shared libraries: <lib>.so: cannot enable executable stack as shared object requires: Permission denied

    For example,

    #./ifind_scan -getmnt -all
./ifind_scan: error while loading shared libraries: libCvOnTap.so: cannot enable executable stack as shared object requires: Permission denied

    As a workaround, do the following steps:

    1. Check if ASL (Atomic Secured Linux) is configured on client. 

      #uname –r
2.6.32.59-17.art.i686.PAE

      .art indicates that ASL is configured on the client.

    2. Check for the presence of the below logs in /var/log/messages file. 

      May 24 22:01:08 rhel6 kernel: Aborting core
May 24 22:01:08 rhel6 kernel: PAX: execution attempt in: <anonymous mapping>, bfc46000-bfc5b000 bffeb000
May 24 22:01:08 rhel6 kernel: PAX: terminating task: /usr/libexec/paxtest/mprotstack(mprotstack):13201, uid/euid: 0/0, PC: bfc5acf4, SP: bfc5acdc
May 24 22:01:08 rhel6 kernel: PAX: bytes at PC: c3 1a a3 ae 2b ac 9f ae f4 0f 9f ae 00 00 00 00 f4 0f 9f ae

    3. Run the following command. 

       
      chpax –ps ../iDataAgent/process/service

      For example:

      #chpax –ps /opt/commvault/iDataAgent/ifind_scan
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