Dell PowerVault ML6000 Dell PowerVault ML6000 SCSI Reference Guide - Page 48

Disconnect-Reconnect h), Parameter List Length = 0Eh

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Disconnect-Reconnect Page (02h) The Disconnect-Reconnect mode page is only supported by the Controller logical unit, and describes the interconnect tenancy characteristics of the Fibre Channel interface. An interconnect tenancy is a period of time during which a SCSI device owns or may access the interface. This page is not available on the SCSI interface. Table 37 Disconnect-Reconnect Page (02h) Byte Bit 7 6 5 4 3 2 1 0 0 PS Rsvd Page Code (02h) 1 Parameter List Length = 0Eh 2 Buffer Full Ratio 3 Buffer Empty Ratio 4 Bus Inactivity Limit 5 6 Disconnect Time Limit 7 8 Connect Time Limit 9 10 Maximum Burst Size 11 12 EMDP Fair Arbitration DIMM DTDC 13 Reserved 14 First Burst Size 15 Parameters Savable (PS) - This page is not savable, and this field is set to zero. Page Code - This field identifies the Disconnect-Reconnect mode page and returns 02h. Parameter List Length - This field is set to 0Eh (14). Buffer Full Ratio - This field indicates how full the buffer will be (during read operations) prior to requesting an interconnect tenancy. A value of 0 is returned to indicate that requests for an interconnect tenancy are consistent with the Disconnect Time Limit field. Buffer Empty Ratio - This field indicates how empty the buffer will be (during write operations) prior to requesting an interconnect tenancy (request for the initiator to send data). A value of 0 is returned to indicate that requests for an interconnect tenancy are consistent with the Disconnect Time Limit field. Bus Inactivity Limit - This field indicates the maximum time limit allowed for maintaining an interconnect tenancy without any data or information transfer. A value of 0 is returned to indicate that there is no bus inactivity limit. Disconnect Time Limit - This field indicates the minimum wait time between interconnect tenancies. A value of 0 is returned to indicate that there is no disconnect time limit. 38 SCSI Commands

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38
SCSI Commands
Disconnect-Reconnect Page (02h)
The Disconnect-Reconnect mode page is only supported by the Controller logical unit, and describes the
interconnect tenancy characteristics of the Fibre Channel interface. An interconnect tenancy is a period of
time during which a SCSI device owns or may access the interface. This page is not available on the SCSI
interface.
Parameters Savable (PS)
- This page is not savable, and this field is set to zero.
Page Code
- This field identifies the Disconnect-Reconnect mode page and returns 02h.
Parameter List Length
- This field is set to 0Eh (14).
Buffer Full Ratio
– This field indicates how full the buffer will be (during read operations) prior to requesting
an interconnect tenancy. A value of 0 is returned to indicate that requests for an interconnect tenancy are
consistent with the Disconnect Time Limit field.
Buffer Empty Ratio
– This field indicates how empty the buffer will be (during write operations) prior to
requesting an interconnect tenancy (request for the initiator to send data). A value of 0 is returned to indicate
that requests for an interconnect tenancy are consistent with the Disconnect Time Limit field.
Bus Inactivity Limit
– This field indicates the maximum time limit allowed for maintaining an interconnect
tenancy without any data or information transfer. A value of 0 is returned to indicate that there is no bus
inactivity limit.
Disconnect Time Limit
– This field indicates the minimum wait time between interconnect tenancies. A
value of 0 is returned to indicate that there is no disconnect time limit.
Table 37
Disconnect-Reconnect Page (02h)
Bit
Byte
7
6
5
4
3
2
1
0
0
PS
Rsvd
Page Code (02h)
1
Parameter List Length = 0Eh
2
Buffer Full Ratio
3
Buffer Empty Ratio
4
Bus Inactivity Limit
5
6
Disconnect Time Limit
7
8
Connect Time Limit
9
10
Maximum Burst Size
11
12
EMDP
Fair Arbitration
DIMM
DTDC
13
Reserved
14
First Burst Size
15