Disk settings - Application Migration Service
Change staging disk type

Disk settings

The Disk settings tab shows a list of all of the disks on the source server and information for each disk.

Disk settings include:

  • Disk name

  • Staging disk type – The corresponding Amazon EBS volume disk type that is being used for the disk.

  • Replicated storage – The amount of storage that has been replicated from the disk to the Replication Server.

  • Total storage – The total storage capacity of the disk.

Change staging disk type

You can change the EBS volume disk type for each disk or for a group of disks.

To change the EBS volume disk type, select the circle to the left of each disk name and choose Change staging disk type.

On the Change staging disk type dialog, select the type of EBS volume to use for the disk or group of disks.

Select the AUTO option if you want AWS Application Migration Service to automatically select the most cost-effective EBS volume disk type for each disk based on the disk size and type based on the option you defined in the Replication settings (either the default Lower cost, Throughput Optimized HDD (st1) option or the Faster, General Purpose SSD (gp3) option).

AWS Application Migration Service uses a single replication server per 15 source disks. Selecting the AUTO option will ensure that the least amount of replication servers are used, resulting in increased cost savings.

Note

AWS Application Migration Service will always use EBS magnetic volumes for disks that are under 500 GiB in size when the AUTO option is selected.

If you do not want AWS Application Migration Service to automatically select a disk, you can select a disk manually. Select the disk type from theEBS volume type menu.

Note

When replicating into an AZ, ensure that the AZ supports the staging disk type chosen.

For certain disks, you can configure the amount of IOPS to be allocated per GB of disk space under IOPS. You can allocate up to 50 IOPS per GB. 64,000 IOPS are available for Nitro-based instances. Other instances are guaranteed up to 32,000 IOPS. The maximum IOPS per instance is 80,000.

Choose Change to confirm the change.

For General Purpose SSD (gp3) disks, you'll also be able to set the Throughput. General Purpose SSD (gp3) volumes have a baseline performance of 125 MiB/s. You can provision additional throughput of 0.25 MiB/s per provisioned IOPS up to a maximum of 1,000 MiB/s (at 4,000 IOPS or higher).

Choose Change to confirm the change.