Systems Management Empire MIB › Disk Statistics Table
Disk Statistics Table
The Disk Statistics table provides disk I/O statistics.
Class: diskStatsEntry
Instance: value of diskStatsHostmibDevTableIndex attribute for the specific disk drive
Each table entry provides the latest disk statistics for one disk. The agent periodically (every 60 seconds) checks the status of the system data structures for each disk and records the values in the table. Use the Disk Statistics table to monitor the following statistics:
- Average number of operations waiting (diskStatsQueueLength)
- Average service time (diskStatsServiceTime)
- Utilization rate (diskStatsUtilization)
- Total KB transferred to and from the disk (diskStatsKBytesTransferred)
- Number of transfer operations (diskStatsTransfers)
- Number of read and write operations (diskStatsReads, diskStatsWrites)
- Index of disk in the Host Resources MIB Device table (diskStatsHostmibDevTableIndex)
- Time of the last stats update (diskStatsLastUpdate)
- Total KB transferred to and from the disk in ASCII format (diskStatsKBytesxferStr)
- Number of transfer operations in ASCII format (diskStatsTransfersStr)
- Number of read and write operations in ASCII format (diskStatsReadsStr, diskStatsWritesStr)
- Total KB transferred to and from the disk in high-order 32-bit on 64-bit system (diskStatsKBytesxferHi)
- Number of transfer operations in high-order 32-bit on 64-bit system (diskStatsxferOpsHi)
- Number of high-order 32-bit read and write operations on 64-bit system (diskStatsReadsHi, diskStatsWritesHi)
When you are using the Disk Statistics table, see the diskStatsLastUpdate column for information about the time (in TimeTicks) that this row was last updated. This column lets you know whether the statistics have been updated since you last queried the table.
