Mode Page X'18': Fibre Channel Logical Unit Control Page

For the tape library, this mode page is defined for Fibre Channel-attached devices only. There is only one copy for each initiator.

Table 1. Data Returned for Mode Page X'18'
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 PS (B'0') Reserved Page Code (X'18')
1 Page Length (X'06')
2 Reserved
3 Reserved EPDC
4-7 Reserved

Enable Precise Delivery Control (EPDC): setting to B'0' or B'1' is allowed but ignored (returns GOOD status without action).