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articles/site-recovery/azure-to-azure-how-to-reprotect.md

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@@ -77,11 +77,11 @@ In most cases, Azure Site Recovery doesn’t replicate the complete data to the
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Below are the conditions that determines how much data would be replicated:
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1. If the source VM data is deleted, corrupted, or inaccessible due to some reason, like a resource group change/delete, then during reprotection a complete Site Recovery will happen as there is no data available on the source region to use.
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2. If the source VM data is accessible then only differentials are computed by comparing both the disks and then transferred. Check the table below to get the estimated time.
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2. If the source VM data is accessible, then only differentials are computed by comparing both the disks and then transferred. Check the table below to get the estimated time.
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|Example situation | Time taken to Reprotect |
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|---|---|
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|Source region has 1 VM with 1 TB standard Disk<br/>- Only 127 GB data is used and the rest of the disk is empty<br/>- Disk type is standard with 60 MiB/S throughput<br/>- No data change after failover| Approximate time: 45 minutes – 1.5 hours<br/> - During reprotection, Site Recovery will populate the checksum of all data which will take 127 GB/ 45 MBs ~45 minutes<br/>- Some overhead time is required for Site Recovery to auto scale: approx. 20-30 minutes<br/>- No Egress charges |
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|Source region has 1 VM with 1 TB standard Disk<br/>- Only 127 GB data is used, and the rest of the disk is empty<br/>- Disk type is standard with 60 MiB/S throughput<br/>- No data change after failover| Approximate time: 45 minutes – 1.5 hours<br/> - During reprotection, Site Recovery will populate the checksum of all data which will take 127 GB/ 45 MBs ~45 minutes<br/>- Some overhead time is required for Site Recovery to auto scale: approx. 20-30 minutes<br/>- No Egress charges |
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|Source region has 1 VM with 1 TB standard Disk<br/>- Only 127 GB data is used and rest of the disk is empty<br/>- Disk type is standard with 60 MiB/S throughput<br/>- 45 GB data changes after failover| Approximate time: 1 hours – 2 hours<br/>- During reprotection, Site Recovery will populate the checksum of all data which will take 127 GB/ 45 MBs ~45 minutes<br/>- Transfer time to apply changes of 45 GB that is 45 GB/ 45 MBps ~ 17 minutes<br/>- Egress charges would be for 45 GB data changes, not for the checksum |
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