Monitoring RDS for performance and Availability

Question 1

RDS – Monitoring Metrics

Answer 1

• • CPUUtilization
• • DatabaseConnections
• • DiskQueueDepth
• • FreeableMemory
• -freeStorageSpace
• -Swapusage

Question 2

CPUUtilization

Answer 2

Percentage of CPU utilization

Question 3

DatabaseConnections

Answer 3

number of connections in a given point in time.

Question 4

DiskQueueDepth

Answer 4

Number of r/w requests waiting to access the disk

Question 5

FreeableMemory

Answer 5

Amount of available RAM

Question 6

FreeStorageSpace

Answer 6

Amount of available storage space

Question 7

SwapUsage

Answer 7

When data is stored in memory on disk

increase in this usually has to do with running out of available RAM

Question 8

ReadIOPS/WriteIOPS

Answer 8

IOPS represent the number of IO operations completed per second
if we do not have enough IOPS, performance will slow down

Question 9

readLatency/WriteLatency

Answer 9

• -average amount of time taken per disk IO operation

- -Higher latency can be solved with more IOPS

Question 10

ReadThroughput/WriteThroughput

Answer 10

Average number of bytes read or written to or from disk per second