NetBackup IT Analytics Release Notes

Last Published:
Product(s): NetBackup IT Analytics (11.5)
  1. Introduction
    1.  
      About NetBackup IT Analytics 11.5
  2. Patch releases
    1. Patch releases: NetBackup IT Analytics
      1.  
        11.5.05 patch release notes
      2.  
        11.5.04 patch release notes
      3.  
        11.5.03 patch release notes
      4.  
        11.5.02 patch release notes
      5.  
        11.5.01 patch release notes
  3. What's new
    1.  
      Optimized Data Collector Administration on Portal
    2.  
      New Alert - Zero Cleaning Left
    3.  
      Provision to delete licenses from Portal
    4.  
      NetBackup Event Monitor probe enhanced to collect service status
    5.  
      Data Collector for consumption of encrypted private keys
    6.  
      Jobs Dashboard
    7.  
      Export or email reports without the need for generation (patch 11.4.04)
    8.  
      Centralized Windows Data Collection using SSH
    9.  
      Collect data from Veritas Flex Appliance attached to on-premise Netbackup
    10.  
      Improved duplicate host finding and merge
    11.  
      Host matching identifier
    12.  
      New system configuration to prevent Commvault hostname and display name swap
    13.  
      ExaGrid's Tiered Backup Storage for Backup (patch 11.4.07 and 11.5.01)
    14.  
      Schedule email and export of report and dashboard templates (patch 11.5.01)
    15.  
      Data collection from Cohesity DataProtect added to the Foundation license (patch 11.5.02)
    16.  
      Audit trail framework for host update
  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
    4.  
      End-of-Life
  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.