Merge pull request #112620 from sideeksh/patch-9

Updated the details for time required to reprotect premium disks

Author: PRMerger9

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

@@ -82,8 +82,12 @@ The following conditions determine how much data is replicated:
 
 |Example situation | Time taken to reprotect |
 |---|---|
-|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 that will take 127 GB/ 45 MBs, approximately 45 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes.<br/>No Egress charges. |
-|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 hour – 2 hours.<br/>During reprotection, Site Recovery will populate the checksum of all data that will take 127 GB/ 45 MBs, approximately 45 minutes.<br/>Transfer time to apply changes of 45 GB that is 45 GB/ 45 MBps, approximately 17 minutes.<br/>Egress charges would be for 45 GB data changes, not for the checksum. |
+|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 MBps throughput.<br/>No data change after failover.| Approximate time: 60-90 minutes.<br/> During reprotection, Site Recovery will populate the checksum of all data. This operates at 45MBps, so the total time that it will take is 127 GB/45 MBps, approximately 45 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes. |
+|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 MBps throughput.<br/>45 GB data changes after failover.| Approximate time: 2.5-3 hours.<br/> During reprotection, Site Recovery will populate the checksum of all data. This operates at 45MBps, so the total time that it will take is 127 GB/45 MBps, approximately 45 minutes.<br/>Transfer speed is approximately 16% of throughput, or 9.6MBps. Therefore, transfer time to apply changes of 45 GB that is 45 GB/9.6 MBps, approximately 80 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes. |
+|Source region has 1 VM with 1 TB standard disk.<br/>Only 20 GB data is used and rest of the disk is empty.<br/>Disk type is standard with 60 MBps throughput.<br/>The initial data on the disk immediately after failover was 15 GB. There was 5 GB data change after failover. Total populated data is therefore 20 GB.| Approximate time: 1-1.5 hours.<br/>Since the data populated in the disk is less than 10% of the size of the disk, we perform a complete initial replication.<br/> Transfer speed is approximately 16% of throughput, or 9.6MBps. Therefore, transfer time to apply changes of 20 GB that is 20 GB/9.6 MBps, approximately 36 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes. |
+|Source region has 1 VM with 1 TB premium disk.<br/>Only 127 GB data is used, and the rest of the disk is empty.<br/>Disk type is premium with 200 MBps throughput.<br/>No data change after failover.| Approximate time: 45-60 minutes.<br/>During reprotection, Site Recovery will populate the checksum of all data. This operates at 80MBps, so the total time that it will take is 127 GB/80 MBps, approximately 27 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes. |
+|Source region has 1 VM with 1 TB premium disk.<br/>Only 127 GB data is used and rest of the disk is empty.<br/>Disk type is premium with 200 MBps throughput.<br/>45 GB data changes after failover.| Approximate time: 1.5-2 hours.<br/>During reprotection, Site Recovery will populate the checksum of all data. This operates at 80MBps, so the total time that it will take is 127 GB/80 MBps, approximately 27 minutes.</br>Transfer speed is approximately 16% of throughput, or 32MBps. Therefore, transfer time to apply changes of 45 GB that is 45 GB/32 MBps, approximately 24 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes. |
+|Source region has 1 VM with 1 TB premium disk.<br/>Only 20 GB data is used and rest of the disk is empty.<br/>Disk type is premium with 200 MBps throughput.<br/>The initial data on the disk immediately after failover was 15 GB. There was 5 GB data change after failover. Total populated data is therefore 20 GB| Approximate time: 30-45 minutes.<br/>Since the data populated in the disk is less than 10% of the size of the disk, we perform a complete initial replication.<br/>Transfer speed is approximately 16% of throughput, or 32MBps. Therefore, transfer time to apply changes of 20 GB that is 20 GB/32 MBps, approximately 11 minutes.<br/>Some overhead time is required for Site Recovery to auto scale, approximately 20-30 minutes |
 
 When the VM is re-protected after failing back to the primary region (i.e., if the VM is re-protected from primary region to DR region), the target VM and associated NIC(s) are deleted.