Item | Description | Evaluation |
|---|---|---|
Disk Busy | Allows the physical disk load status to be ascertained and compared. | It can be used to ascertain the load deviation and load peaks of each disk. If the physical disk busy rate exceeds 60 % intermittently, the disk load is causing a bottleneck and performance problems are either occurring now or may occur in the future. Warning level: Physical disk busy >= 60 % |
Disk Queue Service Times | Allows the number of physical disk queue requests to be ascertained and compared. | It can be used to ascertain the deviation and peaks of I/O requests for each disk. If the number of physical disk queue requests is two or more, the disk load is causing a bottleneck and performance problems are either occurring now or may occur in the future. It is necessary to take measures such as distributing the disk load or adding disks. Warning level: Number of physical disk queue requests >= 2 |
