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QoreStor 7.5.2 - User Guide

Introducing QoreStor Accessing QoreStor Configuring QoreStor settings
Licensing QoreStor Configuring SAML Configuring an SSL Certificate for your QoreStor System Configuring Active Directory settings Securing QoreStor server root logins Enabling FIPS 140-2 support Understanding system operation scheduling Configuring Secure Connect Enabling MultiConnect Bandwidth throttling Configuring and using Rapid NFS and Rapid CIFS Configuring and using VTL Configuring and Using Encryption at Rest Configuring and using the Recycle Bin Configuring Cloud Reader Configuring RDA immutability
Managing containers Managing local storage Managing cloud storage Managing replications Managing users Monitoring the QoreStor system Managing QoreStor remotely Support, maintenance, and troubleshooting Security recommendations guide About us

Enabling MultiConnect

Before using MultiConnect, ensure that the default port configuration is appropriate for your environment. The port used by MultiConnect is:

  • 11000 - This is the standard MultiConnect communication port for backup.
  • 9920 - This is the standard MultiConnect communication port for managed replication.

To enable Secure Connect on a Windows client

  1. On the client server, press Win+R to open the Run window.
  2. Type sysdm.cpl and click OK.
  3. Click the Advanced tab, then Environment Variables.
  4. In the System Variables section, click New.
  5. In the Variable name field, enter REMOTE_CLNT_MAX_CONNS.
  6. In the Variable value field, enter one of the following:
    • 4 - establishes 4 connections.
    • 8 - establishes 8 connections.
    • 16 - establishes 16 connections.
  7. Click OK, then OK.
  8. Restart the DMA services for the change to take effect.

To enable MultiConnect on a Linux client

  1. At the command prompt on the client machine, enter the following command
    echo 'export REMOTE_CLNT_MAX_CONNS=<4|8|16>' >> /etc/profile

    Where:

    • 4 - establishes 4 connections.
    • 8 - establishes 8 connections.
    • 16 - establishes 16 connections.
  2. Restart the DMA services for the change to take effect.

To enable MultiConnect between QoreStor servers

  1. At the command prompt on the source machine, enter the following command
    echo 'export REPL_CLNT_MAX_CONNS=16' >> /etc/oca/oca.cfg
  2. Restart the ocards service for the change to take effect.

Bandwidth throttling

Bandwidth throttling, also known as traffic shaping or bandwidth management, refers to the deliberate slowing down or limiting of the internet speed. This technique is used to ensure network stability, prevent congestion, and distribute bandwidth resources more equitably. For example, bulk data backup may be provided the limited bandwidth to make way for time-critical application traffic.

QoreStor offers a bandwidth throttling tool between a pair of QoreStor systems for replication and op-dup. If enabled, it works on the TCP ports: 9915, 9916, 9920, and 9943. You can use the bandwidth throttling tool through the user interface (GUI) or with the command line interface (CLI). Bandwidth throttling applies to both, container replication and managed replication for RDA and OST protocol containers.

 

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Adding a throttling schedule from UI

On the QoreStor GUI, the Bandwidth throttling page displays current information about bandwidth throttling schedules and default bandwidth set for the QoreStor system.

To add a throttling schedule from the UI

Execute the following steps to add a throttling schedule from the UI:

  1. In the navigation menu, click System to expand the menu, then click Bandwidth throttling.The configured bandwidth throttling schedule is displayed.
  2. Click Add a Target System with Throttling to add a new target with a schedule.
  3. In the pop-up window, enter the following details:
    1. Target System: Enter the target machine's IP, host name, or FQDN.
    2. Out of Schedule Bandwidth: The default value is "Full Speed." To specify a custom value, select the Custom option and enter the desired value in mbps for out-of-schedule bandwidth.
    3. Click Save.
    4. Optionally, to add schedules with specific days and times, click Add Schedule Event and enter/select the desired values:
      1. Select the Start Day (note: the week starts on Sunday and ends on Saturday).
      2. Enter the Start Time.(00:00 to 23:59)
      3. Select the End Day.
      4. Enter the End Time.
      5. Enter the Bandwidth in Mbps.
      6. Click Add.
        Once successfully added, the schedule entry will appear in the grid.You can add multiple schedules by repeating the above steps.
      7. Optionally, click Remove to delete an entry from the schedules or click View/Edit to view/modify the schedule entry.

NOTE: End Day and End Time should be ahead of Start Day and Start time.

CLI: Use qs_bw_throttle CLI to configure, view, or modify bandwidth throttling for replication and op-dup. Please refer the QoreStor CLI Reference guide for more information.

View-Edit a throttling schedule

To view/edit a throttling schedule

Execute the following steps to view/edit a throttling schedule:

  1. In the navigation menu, click System to expand the menu, then click Bandwidth throttling.The configured bandwidth throttling schedule is displayed.
  2. Click View/Edit on the target IP entry for which you wish to view or modify the entered values.
  3. In the pop-up window modify the Out of Schedule Bandwidth values if you wish to modify the entry.
  4. To update the schedules:
    1. To delete a schedule entry, click Remove.
    2. To add a new schedule, click Add Schedule Event.
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