Built-in WAN Acceleration questions

[omg]

Newbie to Veeam B&R 8.0

Here is my understanding of what "Built-in WAN Acceleration" does in enterprise plus edition. Correct me if I'm wrong:

1) If we wanted to use Built-in WAN accelerator at ONSITE location, we have to setup a disk cache location ( local disk or SSD ) - 10GB to 1TB depends on VMs

2) If we wanted to use Built-in WAN accelerator at OFFSITE location, we have to setup a disk cache location ( local disk or SSD ) - 10GB to 1TB depends on VMs

3) If there a huge backup file around 50GB at onsite location, Veeam software will try to compress the 50GB file to around 5GB ( approximate), to do this
compression Veeam uses step (1) disk location hard disk space.

4) Transfers the 5GB compressed file over WAN to offsite location

5) Now offsite Veeam software will uncompress/unzip the backup file from 5GB to 50GB, to do this task it use disk space created in step (2) above

6) Now target size will have 50GB backup file to do the restoration.

If we don't have enterprise plus veeam license we cannot use wan accelerator feature and that case we are now confined
to transfer the 50GB backup file without any compression.

Correct me if any of the above steps are wrong.

[Shestakov]

Hello,

1) If we wanted to use Built-in WAN accelerator at ONSITE location, we have to setup a disk cache location ( local disk or SSD ) - 10GB to 1TB depends on VMs
2) If we wanted to use Built-in WAN accelerator at OFFSITE location, we have to setup a disk cache location ( local disk or SSD ) - 10GB to 1TB depends on VMs

If you want to use WAN acceleration, you need to deploy it both at onsite and offsite locations (source and target). By default, the size of the global cache is 100 GB. You can increase the size or decrease it if necessary. The more space you allocate, the more repeating data blocks will be written to the global cache and the more efficient WAN acceleration will be. It is recommended that you allocate at least 40 GB to the global cache storage.

3) If there a huge backup file around 50GB at onsite location, Veeam software will try to compress the 50GB file to around 5GB ( approximate), to do this
compression Veeam uses step (1) disk location hard disk space.

Not sure what you meant by "...Veeam uses step (1) disk location hard disk space."
WAN Acceleration process is described step-by-step here. Please review.

4) Transfers the 5GB compressed file over WAN to offsite location
5) Now offsite Veeam software will uncompress/unzip the backup file from 5GB to 50GB, to do this task it use disk space created in step (2) above
6) Now target size will have 50GB backup file to do the restoration.

To be correct, on step 5, the behaviour depends on the type of job. WAN Acceleration can be used for backup copy and replication jobs. To check the difference, please click on hyperlink provided above.

If we don't have enterprise plus veeam license we cannot use wan accelerator feature and that case we are now confined
to transfer the 50GB backup file without any compression.

Right, WAN Acceleration is available only with Enterprise Plus Edition. However, all versions have built-in data deduplication and compression.
You can try WAN Acceleration out for free with Trial license. Thanks.

[mmonroe]

Remember that the backup data stored on disk with Veeam is fully dedup'ed and compressed. If you simply copy existing disk data out over the WAN to a remote site or Amazon S3 you will be copying dedup'ed and compressed data and storing it that way on the remote storage.

My understanding of the Wan Accelerator is that this cache is for Veeam to keep up with blocks that have already been sent across the wire and not have to resend them when it detects identical blocks that are already on the remote site.

[dellock6]

Correct, you do not see advantages copying a single backup file, but when the retention is extended and it considers multiple veeam files.