Dr4000 System And Data Operations - Dell DR4000 Administrator's Manual

FILE LOCATION: C:\Users\bruce_wylie\Documents\~Dell
Docs\~FINAL_DR4000_1.0.1.1_DOCS\~Final_1.0.1.1_DR4000_Admin_Guide_Files\~3-
NOTE:
The listed terminal emulation applications are not the only ones that
will work with the DR4000 system. This list is only intended to provide
examples of terminal emulation applications that can be used.

DR4000 System and Data Operations

Data is stored and resides on the Dell DR4000 system, which is a 2-Rack Unit
(RU) appliance, and the system software is pre-installed. The internal drives
of the system are configured as a Redundant Array of Independent Disks
(RAID) 1 on the RAID Controller, which is considered to be volume 1. The
data being backed up is stored on virtual disks that reside on the appliance.
The hot-swappable data drives that are attached to the RAID controller are
configured as:
• 11 drives operating as RAID 6, which act as virtual-disks for data storage.
• The remaining drive (drive 12) acts as the global hot-spare drive for the
system.
The DR4000 system supports RAID 6, which allows the appliance to continue
read and write requests to the RAID array virtual disks even in the event of
concurrent disk failures, providing protection to your mission-critical data.
The system design supports double-data drive failure survivability if either of
the following service operations are performed:
• System board replaced
• Boot disks are reinitialized or system software is reinstalled
If the system detects an unconfigured drive, then the data is automatically
copied from the global hot spare (GHS, drive slot 0). The global hot spare
again behaves as a spare. This scenario is usually encountered when a faulty
data drive is replaced.
Figure 2-1. DR4000 System Drive Slot Locations
Drive 0 (top)
Drive 1 (middle)
Drive 2 (bottom)
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10
Understanding the DR4000 System
Drive 6 (top)
Drive 3 (top)
Drive 7 (middle)
Drive 4 (middle)
Drive 8 (bottom)
Drive 5 (bottom)
Drive 9 (top)
Drive 10 (middle)
Drive 11 (bottom)