Dell DL1000 Spezifikationen PDF herunterladen (Seite 41)

To perform a BMR for a Windows machine:

1. Create a boot CD.

2. Burn the image to disk.

3. Boot the target server from the boot CD.

4. Connect to the recovery disk.

5. Map the volumes.

6. Initiate the recovery.

7. Monitor the progress.

Replicating Recovery Points

Replication is the process of copying recovery points and transmitting them to a secondary location for

the purpose of disaster recovery. The process requires a paired source-target relationship between two

cores. The source core copies the recovery points of the protected agents and then asynchronously and

continuously transmits them to a target core at a remote disaster recovery site. The off-site location can

be a company-owned data center (self-managed core) or a third-party managed service provider’s

(MSP’s) location or cloud environment. When replicating to a MSP, you can use built-in work flows that

let you request connections and receive automatic feedback notifications. Possible scenarios for

replication include:

• Replication to a Local Location— The target core is located in a local data center or on-site location,

and replication is maintained at all times. In this configuration, the loss of the Core would not prevent

a recovery.

• Replication to an Off-site Location— The target core is located at an off-site disaster recovery facility

for recovery in the event of a loss.

• Mutual Replication— Two data centers in two different locations each contain a core and are

protecting agents and serving as the off-site disaster recovery backup for each other. In this scenario,

each core replicates the agents to the Core that is located in the other data center.

• Hosted and Cloud Replication— AppAssure MSP partners maintain multiple target cores in a data

center or a public cloud. On each of these cores, the MSP partner lets one or more of their customers

replicate recovery points from a source core on the customer’s site to the MSP’s target core for a fee.

Setting Up Your Environment

If the bandwidth between the source core and the target core cannot accommodate the transfer of

stored recovery points, replication begins with seeding the target core with base images and recovery

points from the selected servers protected on the source core. The seeding process can be performed at

any time, as part of the initial transfer of data to serve as the foundation for regularly scheduled

replication, or in the case of re-instating replication for a previously replicated machine whose replication

had been paused or deleted. In this case, the Build RP Chain option would let you copy not-yet replicated

recovery points to a seed drive.

When preparing for replication, you should consider the following factors:

• Change Rate—The change rate is the rate at which the amount of protected data is accumulated. The

rate depends on the amount of data that change on protected volumes and the protection interval of

the volumes. If a set of blocks change on the volume, reducing the protection interval reduces the

change rate.

• Bandwidth— The bandwidth is the available transfer speed between the source core and the target

core. It is crucial that the bandwidth be greater than the change rate for replication to keep up with

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