Drive Bay Numbers When Sas Expander Is Used - NEC Express5800 Series User Manual

Chapter 1 General Description
4. Names and Functions of Parts
Rear (2.5-inch drive model, 3.5-inch drive model)
4.10.2

Drive bay numbers when SAS expander is used

If you connect via an SAS Expander, the drive bay numbers become sequential.
・SAS Expander Port 1 is always connected to Port 1 of RAID Controller.
・SAS Expander Port 2 is always connected to Port 2 of RAID Controller.
・SAS Expander Port 3 connection = Drive number 1-4
・SAS Expander Port 4 connection = Drive number 5-8
・SAS Expander Port 5 connection = Drive number 9-12
・SAS Expander Port 6 connection = Drive number 13-16
・SAS Expander Port 7 connection = Drive number 17-20
・SAS Expander Port 8 connection = Drive number 21-24
・SAS Expander Port 9 connection = Drive number 25-28
Here we illustrate the examples.
When connecting the 2x2.5-type drive model option (2.5-type HDD cage (rear)) to port 9 of the SAS expander,
the drive number is 25 and 26.
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Express5800/R120h-2E User's Guide