IDC11773I   nnnn KEYS PROCESSED ON INDEX LEVEL y, AVERAGE KEY LENGTH: keylen

Explanation

This message lists the number of keys found on each index level and displays the average compressed length of all of the keys on that index level.

In the message text:
nnnn
The number of keys found on this index level.
y
The index level. Level 1 is the sequence set.
keylen
The average key length of the keys stored in the index record after compression has been performed.

System action

The program continues processing.

Source

DFSMSdfp