DellDell PowerEdge R810 Technical Guide 44Figure 19. Persistent Storage Block Diagram12.2.1 122BiDRAC6 ExpressThe iDRAC6 Express is a managed persistent storage space for server provisioning data. iDRAC6Express consists of 1 GB flash and vFlash (an optional external SD card on the optional iDRAC6Enterprise). vFlash offers the hot-plug portability and increased storage capacity benefits of SD whilestill being managed by the system.iDRAC6 Express is partitioned to support the following applications: Unified Server Configurator Browser and System Services Module (SSM) (25 MB): theUnified Server Configurator browser provides a consistent graphical user interface for baremetal deployment and is ideal for 1-to-1 deployment. The SSM supports automatic 1-to-Manydeployment. Service Diagnostics (15 MB): formerly on the hard drive as the Utility Partition, this is abootable FAT16 partition for Service Diagnostics Deployment OS Embedded Linux® (100 MB): Storage space to hold Embedded Linux Deployment OS Windows® Preinstallations Environment (PE) (200 MB): Storage space tohold Windows PE 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, embeddedNIC, power supplies and hard drive firmware (This partition also holds the BIOS and optionROM configuration data.)