Users Guide
The roll-up health status for the enclosure provides the combined health status for all the drives in the enclosure. The enclosure link on the
Topology page displays the entire enclosure information irrespective of which controller it is associated with. Because two storage
controllers (PERC and PCIe extender) can be connected to the same backplane, only the backplane associated with the PERC controller is
displayed in System Inventory page.
In the Storage > Enclosures > Properties page, the Physical Disks Overview section displays the following:
• Slot Empty — If a slot is empty.
• PCIe Capable — If there are no PCIe capable slots, this column is not displayed.
• Bus Protocol — If it is a universal backplane with PCIe SSD installed in one of the slots, this column displays PCIe.
• Hotspare — This column is not applicable for PCIe SSD.
NOTE: Hot swapping is supported for universal slots. If you want to remove a PCIe SSD drive and swap it with a SAS/SATA drive,
ensure that you rst complete the PrepareToRemove task for the PCIe SSD drive. If you do not perform this task, the host
operating system may have issues such as a blue screen, kernel panic, and so on.
Setting SGPIO mode
The storage controller can connect to the backplane in I2C mode (default setting for Dell backplanes) or Serial General Purpose Input/
Output (SGPIO) mode. This connection is required for blinking LEDs on the drives. Dell PERC controllers and backplane support both these
modes. To support certain channel adapters, the backplane mode must be changed SGPIO mode.
The SGPIO mode is only supported for passive backplanes. It is not supported for expander-based backplanes or passive backplanes in
downstream mode. Backplane rmware provides information on capability, current state, and requested state.
After LC wipe operation or iDRAC reset to default, the SGPIO mode is reset to disabled state. It compares the iDRAC setting with the
backplane setting. If the backplane is set to SGPIO mode, iDRAC changes its setting to match the backplane setting.
Server power cycle is required for any change in setting to take eect.
You must have Server Control privilege to modify this setting.
NOTE
: You cannot set the SGPIO mode using iDRAC Web interface.
Setting SGPIO mode using RACADM
To congure the SGPIO mode, use the set command with the objects in the SGPIOMode group.
If it is set to disabled, it is I2C mode. If enabled, it is set to SGPIO mode.
For more information, see the iDRAC RACADM Command Line Interface Reference Guide available at dell.com/idracmanuals.
Choosing operation mode to apply settings
While creating and managing virtual disks, setting up physical disks, controllers, and enclosures or resetting controllers, before you apply the
various settings, you must select the operation mode. That is, specify when you want to apply the settings:
• Immediately
• During the next system reboot
• At a scheduled time
• As a pending operation to be applied as a batch as part of a single job.
Managing storage devices
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