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Druva Documentation

Ensure High Availability of a storage

inSync Private Cloud Editions: File:/tick.png Elite File:/tick.png Enterprise

About High Availability policy

If you want to ensure high availability of a primary storage, you can associate a primary storage with a secondary storage. By creating a high availability policy, you can choose to seed data from the primary storage to the secondary storage. When the primary storage is not reachable, corrupted, or is down then the high availability policy routes all backed up up data to the secondary storage. 

You can associate only one secondary storage with a primary storage and vice versa. You can assign a primary storage to a storage pool. However, you cannot add the secondary to the pool. The secondary storage is always outside the pool. You also cannot allocate users to a secondary storage.

Note: We recommend that you create identical sizes of the primary storage and secondary on separate storage nodes.

Create a High Availability policy

To create a high availability policy

  1. On the inSync Management Console menu bar, click ManageHigh Availability.
  2. Click Create New. The Create New HA wizard appears.
  3. On the HA Overview page, provide the appropriate information for each field.
    Field Action
    Policy name Type a name for the high availability (HA) policy.
    Primary Storage Click a primary storage for the policy.
    Secondary Storage Click a secondary storage for the policy.
    Backup to Secondary every Click the frequency of the backup from user devices to the secondary storage.
  4. On the Seeding Policy page, provide the appropriate information for each field.
    Field Action
    Enable Seeding Select this check box to enable seeding from primary storage to secondary storage.
    Populate secondary storage daily at Click the start time and then type the duration for daily seeding. The seeding stops after the duration that you specify even if all data changes are not seeded.
    Additionally, populate weekly on Click the day on when you want to schedule seeding for weekly data. The daily seeding will not trigger on the day when weekly seeding is scheduled.
    Populate secondary storage weekly at Click the start time and then type the duration for weekly seeding.
    Use dedicated IP/FQDN for destination

    Select this check box to enable the use of a dedicated IP or fully qualified domain name to seed the secondary storage. 

    IP/FQDN for destination If you do not select the Use dedicated IP/FQDN for destination check box, click the IP address or FQDN for seeding the secondary storage.
    Limit bandwidth consumption to Type the maximum bandwidth for the secondary storage and click KBps or MBps from the adjacent list.
    For unlimited bandwidth, type 0 kbps or 0 mbps.
  5. Click Finish.
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