Datasheet

Data Buffer Management
3-10 C141-C008
− RESERVE EXTENDED
− WRITE BUFFER
− WRITE SAME
c) If the data buffer where data which are objects of caching are stored is used
by any of the following commands, the data existing in that data buffer which
are objects of caching are disabled.
− READ
− READ EXTENDED
− WRITE
− WRITE EXTENDED
− WRITE AND VERIFY
− VERIFY
d) If any of the following events occurs, all the data which are objects of
caching are disabled.
− Receiving LIP (y, x)
− Receiving TARGET RESET (FCP TASK MANAGEMENT)
− Receiving ABORT TASK SET (FCP TASK MANAGEMENT)
− Receiving CLEAR TASK SET (FCP TASK MANAGEMENT)
− Automatic alternate processing is executed.
− Receiving TPRLO
− Receiving ABTS (Link service)
− Read/Write is aborted in something causes.
3.2.2 Caching parameters
The IDD supports the MODE SELECT parameters (caching parameters: page
code = 8) shown in Table 3.2 for controlling the cache feature. See Section 4.1
concerning details of the MODE SELECT parameters.