AWS Storage Gateway - Using Amazon Cloudwatch Metrics; Measuring Performance between Your Tape Gateway and AWS

AWS Storage Gateway User Guide
Using Amazon CloudWatch Metrics
Using Amazon CloudWatch Metrics
You can get monitoring data for your tape gateway by using either the AWS Management Console or
the CloudWatch API. The console displays a series of graphs based on the raw data from the CloudWatch
API. The CloudWatch API can also be used through one of the Amazon AWS Software Development Kits
(SDKs) or the Amazon CloudWatch API tools. Depending on your needs, you might prefer to use either
the graphs displayed in the console or retrieved from the API.
Regardless of which method you choose to use to work with metrics, you must specify the following
information:
• The metric dimension to work with. A dimension is a name-value pair that helps you to uniquely
identify a metric. The dimensions for Storage Gateway are GatewayId and GatewayName. In the
CloudWatch console, you can use the Gateway Metrics view to easily select gateway-specific and
tape-specific dimensions. For more information about dimensions, see Dimensions in the Amazon
CloudWatch User Guide.
• The metric name, such as ReadBytes.
The following table summarizes the types of Storage Gateway metric data that are available to you.
Amazon
CloudWatch
Namespace
Dimension Description
AWS/
StorageGateway
GatewayId,
GatewayName
These dimensions filter for metric data that describes
aspects of the tape gateway. You can identify a tape
gateway to work with by specifying both the GatewayId
and the GatewayName dimensions.
Throughput and latency data of a tape gateway is based on
all the virtual tapes in the tape gateway.
Data is available automatically in 5-minute periods at no
charge.
Working with gateway and tape metrics is similar to working with other service metrics. You can find
a discussion of some of the most common metrics tasks in the CloudWatch documentation listed
following:
• Viewing Available Metrics
• Getting Statistics for a Metric
• Creating CloudWatch Alarms
Measuring Performance Between Your Tape Gateway
and AWS
Data throughput, data latency, and operations per second are measures that you can use to understand
how your application storage that is using your tape gateway is performing. When you use the correct
aggregation statistic, these values can be measured by using the Storage Gateway metrics that are
provided for you.
A statistic is an aggregation of a metric over a specified period of time. When you view the values of a
metric in CloudWatch, use the Average statistic for data latency (milliseconds), and use the Samples
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