|« PreviousNext »|
|Did this page help you? Yes | No | Tell us about it...|
In the gateway-cached setup (see How AWS Storage Gateway Works (Architecture)), you allocate the two disks, that you previously added to the VM, for cache storage and upload buffer. You then create an iSCSI storage volume in Amazon S3. Data that your on-premises applications write to this volume is stored in Amazon S3. The gateway maintains the volume's recently accessed data locally in the Cache Storage.
The following architectural overview diagram shows what part of the gateway-cached setup you are creating.
In this step, you create the cache storage and upload buffer on your local disks and configure alarms.
To create local volumes (cache storage and upload buffer)
In the Navigation pane of the console, select your gateway, click the Volumes tab, and then click Create Volumes.
In the Configure Your Activated Gateway wizard, configure local working storage, which consists of the upload buffer and cache storage.
Of the two disks you provisioned, select one as the upload buffer and the other as cache storage, as shown in the following example.
Now you can create optional alarms to monitor the storage utilization of the two volumes you created.
To configure optional alarms
In the upload buffer alarm dialog box, configure the alarm for upload buffer utilization.
Using the two drop-down boxes, select utilization percentages that are used to create two upload buffer alarms.
You can select the thresholds, for example, so that the first threshold (the lower percentage value) represents a upload buffer percentage utilization that, if exceeded, you want to be warned about. The second threshold can be selected to represent a upload buffer utilization that, if exceeded, is cause for action, such as adding more upload buffer space.
After you complete this step, you can go to the CloudWatch console at any time and change the alarm thresholds.
Enter an email address.
Two alarms are created. For example, using the gateway name MyNewGatewayCached, the alarms created are MyNewGatewayCached-UploadBufferUtilization-Alarm1 and MyNewGatewayCached-UploadBufferUtilization-Alarm2.
Check for a subscription confirmation email that is sent to the email address you indicated, and follow the instructions in that email to confirm your subscription to the Amazon Simple Notification Service (Amazon SNS) topic. After you have confirmed your subscription, you will receive an email when either threshold you specified is exceeded.
Click Continue to create the alarm.
In the cached storage alarm dialog box, configure alarm for cache storage utilization.
Follow instructions in the preceding step to configure this alarm.
For example, using the gateway name MyNewGatewayCached, the alarms created are MyNewGatewayCached-CacheUtilization-Alarm1 and MyNewGatewayCached-CacheUtilization-Alarm2.
Click Continue to create the alarm.
Continue in the next section to create the volume storage in Amazon S3.
In the preceding section, you created volumes (cache storage and upload buffer) on your on-premises hardware. Now, you create volume storage in Amazon S3. This is where your application data will reside.
To create a cached volume in Amazon S3
In the Configure Your Activated Gateway dialog box, create an iSCSI storage volume in Amazon S3.
For Capacity, specify 50 GiB.
The maximum size you can specify is 32 TiB.
Enter a name in the iSCSI Target Name field.
The target name can contain lowercase letters, numbers, periods (.), and hyphens (-).
This target name appears as the iSCSI Target
Node name in the Targets
tab of the iSCSI Microsoft Initiator UI
after discovery. For example, a name
would appear as
Ensure that the target name is globally unique within your
For this tutorial, use myvolume.
Leave the Based on Snapshot ID field empty.
If you want to restore an existing Amazon EBS snapshot or a gateway snapshot on to the storage volume that you are creating, you must specify the snapshot ID. The gateway downloads your existing snapshot data to the storage volume.
Verify that the Host IP field is the IP address of your gateway, and click Create Cached Volume.
In the Configure iSCSI Initiators dialog box, click Close.