Specifications

Troubleshooting Resources 4–43
Checking Fibre Channel Link Errors
Use the VTDPY>DISPLAY HOST command to also check for any channel link errors
(see Figure 4–4).
NOTE: The following section outlines the VTDPY display for “this controller” only. To see other
connections, run VTDPY again on the “other controller.”
KB/S Average amount of data transferred to and from the unit during the last update
interval in 1000-byte increments.
Rd% Percentage of data transferred between the host and the unit that were read from
the unit.
Wr% Percentage of data transferred between the host and the unit that were written to
the unit.
CM% Percentage of data transferred between the host and the unit that were compared.
A compare operation can accompany a read or a write operation, so this column is
not the sum of columns Rd% and Wr%.
HT% Cache-hit percentage for data transferred between the host and the unit.
PH% Partial cache-hit percentage for data transferred between the host and the unit.
MS% Cache-miss percentage for data transferred between the host and the unit.
Purge Number of blocks purged from the cache during the last update interval.
BlChd Number of blocks added to the cache during the last update interval.
BlHit Number of blocks hit during the last update interval.
Table 4–13 Unit Status Columns (Continued)
Column Contents