These columns identify the traffic between the host and the node in three levels of granularity:
- Blocks
- Messages
- KB
Blocks are made up of some amount of variable sized messages. ReadKB and WriteKB identify the KB involved in the traffic.
For information on the ResUsageSpma table channel and TCP/IP network traffic columns, see Host Controller Channel and TCP/IP Network Traffic Columns.
| Column Name | Mode | Description | Data Type |
|---|---|---|---|
| HostBlockReads | count | Number of blocks read in from the host. | FLOAT |
| HostBlockWrites | count | Number of blocks written out to the host. | FLOAT |
| HostMessageReads | count | Number of messages read in from the host. | FLOAT |
| HostMessageWrites | count | Number of messages written out to the host. | FLOAT |
| HostReadKB | count | KB transferred in from the host. | FLOAT |
| HostWriteKB | count | KB transferred out to the host. | FLOAT |