Users Guide

To query the job ID returned:
racadm jobqueue view -i <job ID>
For more information, see the iDRAC RACADM Command Line Reference Guide available at dell.com/idracmanuals.
Managing enclosures or backplanes
You can perform the following for enclosures or backplanes:
• View properties
• Congure universal mode or split mode
• View slot information (universal or shared)
• Set SGPIO mode
Related link
Summary of supported features for storage devices
Supported enclosures
Conguring backplane mode
Viewing universal slots
Setting SGPIO mode
Conguring backplane mode
The Dell 13
th
generation PowerEdge servers supports a new internal storage topology, where two storage controllers (PERCs) can be
connected to a set of internal drives through a single expander. This conguration is used for high performance mode with no failover or
High Availability (HA) functionality. The expander splits the internal drive array between the two storage controllers. In this mode, virtual
disk creation only displays the drives connected to a particular controller. There are no licensing requirements for this feature. This feature is
supported only on a few systems.
Backplane supports the following modes:
• Unied mode —This is the default mode. The primary PERC controller has access to all the drives connected to the backplane even if a
second PERC controller is installed.
• Split mode — One controller has access to the rst 12 drives and the second controller has access to the last 12 drives. The drives
connected to the rst controller are numbered 0-11 while the drives connected to the second controller are numbered 12-23.
• Split mode 4:20 — One controller has access to the rst 4 drives and the second controller has access to the last 20 drives. The drives
connected to the rst controller are numbered 0-3 while the drives connected to the second controller are numbered 4-23.
• Split mode 8:16 — One controller has access to the rst 8 drives and the second controller has access to the last 16 drives. The drives
connected to the rst controller are numbered 0-7 while the drives connected to the second controller are numbered 8-23.
• Split mode 16:8 — One controller has access to the rst 16 drives and the second controller has access to the last 8 drives. The drives
connected to the rst controller are numbered 0-15 while the drives connected to the second controller are numbered 16-23.
• Split mode 20:4 — One controller has access to the rst 20 drives and the second controller has access to the last 4 drives. The drives
connected to the rst controller are numbered 0-19 while the drives connected to the second controller are numbered 20-23.
• Information Not Available — Controller information is not available.
iDRAC allows the split mode setting if the expander has the capability to support the conguration. Ensure that you enable this mode prior
to installing the second controller. iDRAC performs a check for expander capability prior to allowing this mode to be congured and does
not check whether the second PERC controller is present.
To modify the setting, you must have Server Control privilege.
If any other RAID operations are in pending state or any RAID job is scheduled, you cannot change the backplane mode. Similarly, if this
setting is pending, you cannot schedule other RAID jobs.
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Managing storage devices