Dell 745N manual External Storage NAS System Drive Configuration, Front Panel Hard-Drive LED Codes

NOTE: If two or more hard drives fail, the virtual disks must be recreated. See "Recreating Virtual Disks" in "Recovering and Restoring the System" for more information.

Each hard drive has front-panel LEDs that provide information about the drive and RAID volume(s). See "Front-Panel Indicators" in the Installation and Troubleshooting Guide for the location of the LEDs. Table 3-4 provides the hard-drive LED codes.

Table 3-4. Front Panel Hard-Drive LED Codes

Hard Drive Condition	LED Status Indicator Pattern
The drive bay is empty.	Off
The hard drive is online and prepared for operation.	Steady green
The virtual disk is rebuilding.	Blinking green
The hard drive has failed.	Blinking amber

External Storage NAS System Drive Configuration

The NAS system in an external storage configuration uses software RAID with two internal SATA hard drives for its operating system. See Table 3-5 and Figure 3-3. The working copies of the Windows Storage Server 2003 operating system and boot sectors are installed on the two hard drives in partitions that are in a RAID 1 mirrored configuration. Data can be stored only on external storage drives attached to the system through a RAID controller.

Table 3-5. External Storage Configuration RAID Default Hard-Drive Partitions

Volume	Hard Drives and RAID Layout	Description
C:	0 and 1: RAID 1	Primary operating system volume
N/A:	variable number of external storage drives	Data volume

Figure 3-3. External Storage Configuration RAID Default Hard-Drive Partitions