Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions,
see Getting Started with Amazon Web Services in China
(PDF).
Monitoring with Amazon CloudWatch
You can monitor file systems using Amazon CloudWatch, which collects and processes raw data from
Amazon FSx for Lustre into readable, near real-time metrics. These statistics are retained for a period of 15
months, so that you can access historical information and gain a better perspective on how
your web application or service is performing. By default, Amazon FSx for Lustre metric data is automatically
sent to CloudWatch at 1-minute periods. For more information about CloudWatch, see What Is Amazon CloudWatch? in the
Amazon CloudWatch User Guide.
CloudWatch metrics are reported as raw Bytes. Bytes are not rounded to
either a decimal or binary multiple of the unit.
Amazon FSx for Lustre publishes the following metrics into the FSx namespace in
CloudWatch. For each metric, Amazon FSx for Lustre emits a data point per disk per minute. To view aggregate file
system details, you can use the Sum statistic. Note that the file servers behind
your Amazon FSx for Lustre file systems are spread across multiple disks.
| Metric |
Description |
DataReadBytes |
The number of bytes for file system read operations.
The Sum statistic is the total number of bytes associated with read
operations during the period. The Minimum statistic is the minimum number of bytes
associated with read operations on a single disk. The Maximum statistic
is the maximum number of bytes associated with read operations on the disk. The
Average statistic is the average number of bytes associated with read
operations per disk. The SampleCount statistic is the number of
disks.
To calculate the average throughput (bytes per second)
for a period, divide the Sum statistic by the number of seconds in the
period.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
DataWriteBytes |
The number of bytes for file system write operations.
The Sum statistic is the total number of bytes associated with
write operations. The Minimum statistic is the minimum number of bytes
associated with write operations on a single disk. The Maximum
statistic is the maximum number of bytes associated with write operations on the
disk. The Average statistic is the average number of bytes associated
with write operations per disk. The SampleCount statistic is the number
of disks.
To calculate the average throughput (bytes per
second) for a period, divide the Sum statistic by the number of seconds
in the period.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
DataReadOperations |
The number of read operations.
The Sum statistic is the total number of read operations. The
Minimum statistic is the minimum number of read operations on a
single disk. The Maximum statistic is the maximum number of read
operations on the disk. The Average statistic is the average number of
read operations per disk. The SampleCount statistic is the number of
disks.
To calculate the average number of read operations
(operations per second) for a period, divide the Sum statistic by the
number of seconds in the period.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
DataWriteOperations |
The number of write operations.
The Sum statistic is the total number of write operations. The
Minimum statistic is the minimum number of write operations on a
single disk. The Maximum statistic is the maximum number write
operations on the disk. The Average statistic is the average number of
write operations per disk. The SampleCount statistic is the number of
disks.
To calculate the average number of write operations
(operations per second) for a period, divide the Sum statistic by the
number of seconds in the period.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
MetadataOperations |
The number of metadata operations.
The Sum statistic is the count of metadata operations. The
Minimum statistic is the minimum number of metadata operations per
disk. The Maximum statistic is the maximum number of metadata
operations per disk. The Average statistic is the average number of
metadata operations per disk. The SampleCount statistic is the number
of disks.
To calculate the average number of metadata operations
(operations per second) for a period, divide the Sum statistic by the number of seconds in the period.
Units:
-
Count for Sum, Minimum, Maximum,
Average, and SampleCount.
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
FreeDataStorageCapacity |
The amount of available storage capacity.
The Sum statistic is the total number of bytes available in the file system. The
Minimum statistic is the total number bytes available in the fullest
disk. The Maximum statistic is the total number of bytes available in
the disk with the most remaining available storage. The Average
statistic is the average number of bytes available per disk. The
SampleCount statistic is the number of disks.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
LogicalDiskUsage |
The amount of logical data stored (uncompressed).
The Sum statistic is the total number of logical bytes stored
in the file system. The Minimum statistic is the least number of
logical bytes stored in a disk in the file system. The Maximum
statistic is the largest number of logical bytes stored in a disk in the file
system. The Average statistic is the average number of logical
bytes stored per disk. The SampleCount statistic is the number
of disks.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
PhysicalDiskUsage |
The amount of storage physically occupied by file system data (compressed).
The Sum statistic is the total number of bytes occupied in
disks in the file system. The Minimum statistic is the total number
of bytes occupied in the emptiest disk. The Maximum statistic is
the total number of bytes occupied in the fullest disk. The Average
statistic is the average number of bytes occupied per disk. The SampleCount
statistic is the number of disks.
Units:
Valid statistics: Sum, Minimum, Maximum,
Average, SampleCount
|
Amazon FSx for Lustre dimensions
Amazon FSx for Lustre metrics use the FSx namespace and provide metrics for a single
dimension, FileSystemId. A file system's ID can be found using the
describe-file-systems Amazon CLI command, and it takes the form of
fs-01234567890123456.