Specifications

Dell
PowerEdge R715 Technical Guide 39
Mixed SSD + SAS
Min 2xSSD+2xSAS
Max 2xSSD + 4xSAS
Config Type
Configs
Description
Min HDD
Max HDD
SAS or SATA
SSD + SAS
RAID
7
MSSR1/R1-X
Integrated SSD/SAS RAID 1/RAID 1 (PERC H700)
2.5‖ = 2+2
2.5‖ = 2+2
8
MSSR1/R5-X
Integrated SSD/SAS RAID 1/RAID 5 (PERC H700)
2.5‖ = 2+3
2.5‖ = 2+4
9
MSSR1/R10-X
Integrated SSD/SAS RAID 1/RAID 10 (PERC H700)
2.5‖ = 2+4
2.5‖ = 2+4
11.2 Persistent Storage
The PowerEdge R715 offers two types of persistent storage, unmanaged and managed. The following
options are available for persistent storage:
 Unmanaged internal SD module
 Managed iDRAC6 Express or Enterprise (optional)
11.2.1 iDRAC6 Express (Lifecycle Controller)
The iDRAC6 Express is a managed persistent storage space for server provisioning data. iDRAC6
Express consists of 1 GB flash and vFlash (an optional external SD card on the optional iDRAC6
Enterprise). vFlash offers the hot-plug portability and increased storage capacity benefits of SD while
still being managed by the system.
iDRAC6 Express is currently partitioned to support the following applications:
 Unified Server Configurator Browser and System Services Module (SSM) (25 MB): the Unified
Server Configurator browser provides a consistent graphical user interface for bare metal
deployment and is ideal for 1 to 1 deployment. The SSM supports automatic 1 to N
deployment.
 Service Diagnostics (15 MB): Formerly on the hard drive as the Utility Partition, this is a
bootable FAT16 partition for Service Diagnostics.
 Deployment OS Embedded Linux (100 MB): Storage space to hold Embedded Linux
 Deployment OS WinPE (200 MB): Storage space to hold Windows Pre-installation Environment
 Driver Store (150 MB): Holds all files required for OS deployment
 iDRAC6 firmware (120 MB): Holds the two most recent versions of iDRAC6 firmware
 Firmware Images (160 MB): Holds the two most recent versions of BIOS, RAID, embedded NIC,
power supplies and hard drive firmware. This partition also holds the BIOS and option ROM
configuration data.
 Lifecycle Log (2 MB): Stores initial factory configuration as well as all detectable hardware
and firmware changes to the server since its deployment. The Life Cycle Log is stored on the
BMC SPI flash.
Approximately 20% of the flash space is reserved for wear leveling on the NAND flash. Wear leveling
is a method designed to extend the life of the NAND flash by balancing the use cycles on the flash’s
blocks.
11.2.2 Unmanaged Persistent Storage
The unmanaged persistent storage consists of two options: