Sg_Senddiag Command - Western Digital Ultrastar Data102 User Manual

User Guide
Each SAS port in the following image matches the color of another set of drives in that specific zone
group. Connect the host servers to the enclosure using SAS cables in the Configuration listed in the table
below. The left side of the table displays the host connection and the right side displays the enclosure IOM
SAS port connection.
Table 51: SAS Cable connections for Configuration 3
Host connection (SAS Port)
5.3.3 sg_senddiag Command
The sg_senddiag command is used to configure zoning on Ultrastar Data102. This command contains
several values that are important to enable and disable zoning through the use of the IOMs and expanders.
The following section breaks down how to understand the necessary information to properly enable or
disable zoning on the enclosure. Each important part of the command has been color coded to match up
with the explanation of each part below. Understanding the function of the command will ensure that the
proper information is collected to build the command in the following sections.

sg_senddiag Command

sg_senddiag <a> --pf --raw=04,00,00,90,<b>,<c>,00,00,<d>
Command Breakdown
sg_senddiag
is a utility that performs a SCSI send diagnostic command.
<a>
is the sg device (Linux) or SCSI device (Windows) that is assigned by the SEP. The information collected for
the device will be input in any location that requests <dev>. There will be one sg or SCSI device handle for
each of the two IOMs.
--pf
Enclosure IOM connection (SAS Port)
Host 1
Host 1
Host 1
Host 1
Host 1
Host 1
Host 2
Host 2
Host 2
Host 2
Host 2
Host 2
5. System Management
A1
A2
A3
B1
B2
B3
A4
A5
A6
B4
B5
B6
5.3 Zoning
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