Fc drives, Fc drives 80, Disconnect-reconnect page fields – HP C737990900 User Manual
Page 80
80 Commands
FC Drives
The Disconnect-Reconnect Page has the following format for FC drives:
Disconnect-Reconnect Page Fields:
7
6
5
4
3
2
1
0
0
PS (0)
Rsvd (0)
Page Code {02h}
1
Additional Page Length {0Eh}
2
Buffer Full Ratio (0)
3
Buffer Empty Ratio (0)
4
(MSB)
Bus Inactivity Limit (0)
5
(LSB)
6
(MSB)
Disconnect Time Limit [0]
7
(LSB)
8
(MSB)
Connect Time Limit (0)
9
(LSB)
10
(MSB)
Maximum Burst Size [0]
11
(LSB)
12
EMDP (0)
FAA [1]
FAB (1)
FAC (1)
Reserved (0)
13–15
Reserved (0)
Buffer Full Ratio
0 Buffer management is controlled by the drive, so this should always be zero.
Connect Time Limit
0 Buffer management is controlled by the drive, so this should always be zero.
Bus Inactivity Limit
0 This parameter is not supported and should be zero.
Disconnect Time Limit
0 This parameter is not supported and should be zero.
Connect Time Limit
0 This parameter is not supported and should be zero.
Maximum Burst Size
>0 The maximum amount of data that will be transferred during a data-in or data-out
phase before disconnecting. This field is in units of 512 bytes. The maximum burst size
that the drive supports is 127 (7Fh) blocks of 512 bytes, that is, 64 KB less 512 bytes..
0 The drive may send bursts of any size. This is the default value.
EMDP (FC only)
0 Enable Modify Data Pointers is not facilitated by the drive. The drive will always have
continually increasing and contiguous data relative offset values for FCP_DATA.