If you have a CDP Enterprise Server installed and are regularly processing the replication of sensitive and important data, your server deployment may function according to the following model:
!scheme3.png!
However, with such a server deployment model, the CDP Server itself could potentially crash due to hardware failure, virus attack, etc. To be prepared for such a scenario, you can run another CDP Server enabling you to protect the machine with your primary CDP Server installed. The function that allows you to do this is called "Multi-Point Replication" and is built into your CDP Enterprise Server. Once you install an Agent on your primary CDP Enterprise Server machine, it can be replicated by a secondary CDP Enterprise Server. You can replicate a running CDP Server with open Disk Safes. Multi-Point Replication enables you to make a second copy of the selected Disk Safes.
!scheme4.png!
h3. Features
* Onsite/offsite backups
* Redundant onsite backups
* Second copy of selected Disk Safe(s)
* Agent is not impacted by the redundant backup
* Minimal impact on Disk I/O and bandwidth using CDP process to replicate changes from primary backup to secondary backup
* CDP can be safely replicated by CDP even when Disk Safes are open
* No interruption to the CDP Server during the redundant replication
h3. Limitations
* If the primary Disk Safe fails, the redundant Disk Safe must first be restored from the redundant (offsite) location before restoring an Agent or its files.
* Primary Disk Safes must be stored on a supported storage format for CDP replication:
h6. Windows
|| Primary Storage Types | Directly Attached Storage \\
Including: \\
IDE, SATA, SCSI, SAS, ISCSI, Fibre Channel, Dynamic Disks (Software RAID), Hardware RAID Solid State Drives (SSD) ||
|| File Systems | NTFS (512 byte - 64 KB cluster sizes) ||
h6. Linux
|| Primary Storage Types | Directly Attached Storage \\
Including: \\
IDE, SATA, SCSI, SAS, ISCSI, Fibre Channel, Dynamic Disks (Software RAID), Hardware RAID Solid State Drives (SSD) ||
|| File Systems | ReiserFS 3, Ext2, Ext3, Ext4 ||
For further instructions, see:
* [Setting up Onsite Multi-Point Replication|Setting up Onsite Multi-Point Replication]
* [Setting up Remote Multi-Point Replication|Setting up Remote Multi-Point Replication]{excerpt:hidden=true}Description of the "Multi-Point Replication" function which allows you to make replications of a CDP Server itself and to make a second copy of the Disk Safes.
{excerpt}
!scheme3.png!
However, with such a server deployment model, the CDP Server itself could potentially crash due to hardware failure, virus attack, etc. To be prepared for such a scenario, you can run another CDP Server enabling you to protect the machine with your primary CDP Server installed. The function that allows you to do this is called "Multi-Point Replication" and is built into your CDP Enterprise Server. Once you install an Agent on your primary CDP Enterprise Server machine, it can be replicated by a secondary CDP Enterprise Server. You can replicate a running CDP Server with open Disk Safes. Multi-Point Replication enables you to make a second copy of the selected Disk Safes.
!scheme4.png!
h3. Features
* Onsite/offsite backups
* Redundant onsite backups
* Second copy of selected Disk Safe(s)
* Agent is not impacted by the redundant backup
* Minimal impact on Disk I/O and bandwidth using CDP process to replicate changes from primary backup to secondary backup
* CDP can be safely replicated by CDP even when Disk Safes are open
* No interruption to the CDP Server during the redundant replication
h3. Limitations
* If the primary Disk Safe fails, the redundant Disk Safe must first be restored from the redundant (offsite) location before restoring an Agent or its files.
* Primary Disk Safes must be stored on a supported storage format for CDP replication:
h6. Windows
|| Primary Storage Types | Directly Attached Storage \\
Including: \\
IDE, SATA, SCSI, SAS, ISCSI, Fibre Channel, Dynamic Disks (Software RAID), Hardware RAID Solid State Drives (SSD) ||
|| File Systems | NTFS (512 byte - 64 KB cluster sizes) ||
h6. Linux
|| Primary Storage Types | Directly Attached Storage \\
Including: \\
IDE, SATA, SCSI, SAS, ISCSI, Fibre Channel, Dynamic Disks (Software RAID), Hardware RAID Solid State Drives (SSD) ||
|| File Systems | ReiserFS 3, Ext2, Ext3, Ext4 ||
For further instructions, see:
* [Setting up Onsite Multi-Point Replication|Setting up Onsite Multi-Point Replication]
* [Setting up Remote Multi-Point Replication|Setting up Remote Multi-Point Replication]{excerpt:hidden=true}Description of the "Multi-Point Replication" function which allows you to make replications of a CDP Server itself and to make a second copy of the Disk Safes.
{excerpt}