NetBackup IT Analytics Release Notes

Last Published:
Product(s): NetBackup IT Analytics (11.4)
  1. Introduction
    1.  
      About NetBackup IT Analytics 11.4
  2. Patch releases
    1. Patch releases: NetBackup IT Analytics
      1.  
        11.4.11 patch release notes
      2.  
        11.4.10 patch release notes
      3.  
        11.4.09 patch release notes
      4.  
        11.4.08 patch release notes
      5.  
        11.4.07 patch release notes
      6.  
        11.4.05 patch release notes
      7.  
        11.4.04 patch release notes
      8.  
        11.4.03 patch release notes
      9.  
        11.4.02 patch release notes
      10.  
        11.4.01 patch release notes
  3. What's new
    1.  
      OpsCenter transition (patch 11.3.04)
    2.  
      Collect data from MFA-enabled Veritas Flex Appliance
    3.  
      UI enhancements on Reports tab
    4.  
      Backup Manager Management reports scope selection has policy type filter
    5.  
      New policy for HPE StoreOnce - Gen 4
    6.  
      New alerts and reports
    7.  
      Client Summary Report (patch 11.4.02)
    8.  
      NetBackup Job Finalized alert rule (patch 11.4.03)
    9.  
      HPE Nimble and HP 3PAR (patch 11.3.05)
    10.  
      HPE StoreOnce supporting Gen 3 (patch 11.3.05)
    11.  
      Enhancement in Collection Status page (patch 11.4.04)
    12.  
      Export or email reports without the need for generation (patch 11.4.04)
    13.  
      ExaGrid's Tiered Backup Storage for Backup (patch 11.4.07 and 11.5.01)
  4. Supported Systems
    1.  
      Portal supported operating systems
    2.  
      Data Collector supported operating systems
    3. Supported browsers and display resolution
      1.  
        Linux portal server: Exported and emailed reports
  5. Installations and Upgrades
    1.  
      Portal installation memory requirements
    2.  
      Performance profiles and transmitted data
  6. Fixed issues
    1.  
      Overview
    2.  
      Fixed issues
  7. Known Issues and Optimizations
    1.  
      Known issues
    2.  
      Optimization: Customize the Linux file handle setting for large collections
    3.  
      End-of-Life (EOL)

Optimization: Customize the Linux file handle setting for large collections

Certain environments may require optimizations to improve performance or to accommodate a large number of data collection policies.

In Linux, a portion of memory is designated for file handles, which is the mechanism used to determine the number of files that can be open at one time. The default value is 1024. For large collection policy environments, this number may need to be increased to 8192 so that the collector does not exceed the open file handle limit. A large environment is characterized as any collector that is collecting from 20 or more subsystems, such as 20+ TSM instances or 20+ unique arrays.

To change the number of file handles, take the following steps.

  1. On the Linux Data Collector server, edit /etc/security/limits.conf and at the end of the file, add these lines.

    root soft nofile 8192
root hard nofile 8192

  2. Log out and log back in as root to execute the following commands to validate all values have been set to 8192.

    ulimit -n
ulimit -Hn
ulimit -Sn

  3. Restart the Data Collector.