SINGLE CHANNEL MODE FOR EARLY REVISION DRIVES

On early revisions of the drive, JP1 did not exist. These drives are identified by having a serial number of “50” or less and only have an 8-way right-angled manufacturing connector. For this revision of drive, the feature is enabled by setting bit 6 of the LOOP_ID to “1”. The LOOP_ID is set using the SELECT_ID pins on the SCA-2 connector within the chassis to which the SSD is connected. See the SEL_ID Function on page 30.

The SELECT_ID bits are normally configured by jumpers or a switch that allows the ID of the drive to be set using the backplane of the SCA-2 connector. Table 39 lists the various configurations of the SELECT_ID function.

Table 39. SELECT_ID Configurations

Bit 6

Bits 5 -1

Bit 0

Configuration Result

 

 

 

 

0

XXXXX

X

Loop ID 0 - 63

 

 

 

Drive operates down both channels.

 

 

 

 

1

XXXXX

0

Loop ID 64 - 126 and even

 

 

 

Drive operates down channel A only.

 

 

 

 

1

XXXXX

1

Loop ID 65 - 127 and odd

 

 

 

Drive operates down channel B only.

 

 

 

 

66

ZeusIOPS 3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0

Page 66
Image 66
SimpleTech ZeusIOPS manual Selectid Configurations, Bit Bits 5 Configuration Result