Disk Numbering; Disk Numbering: Windows Disk Management - LaCie 5big Storage Server Technical Brief

LaCie Professional Server
Technical Brief: RAID

4. Disk Numbering

The 5big Storage Server uses Windows Storage Server Disk Man-
agement to configure RAID. Before reading how to create and repair
the RAID arrays, it may be helpful to know how the utility assigns
numbers to the physical disks. Please note that disk number assign-
ment in Disk Management differs from the LaCie Hardware Monitor
(see Technical Brief: LaCie Hardware Monitor
bering: LaCie Hardware Monitor).
4.1. Disk Numbering: Windows Disk
Management
Fig. 10
Fig. 10 illustrates how Windows Disk Management lists the default
5big Storage Server RAID configuration: disk numbers, levels of
RAID, and the health of the disks.
Disk Management numbers correlate with the physical placement
of the disks. (See 5.1. Default RAID
default RAID settings for a five disk 5big Storage Server.)
Please note that each disk takes part in two RAID configurations.
For example, approximately 35 GB of
runs the Windows Storage Server operating system. The remainder
of Disk 0 is also one of five drives that make up the Data volume,
a RAID 5 array.
During standard operation, the numbering will not change. How-
ever, if a disk should fail, the default disk numbering could become
confused, especially if the 5big Storage Server is restarted when a
disk is missing. Missing could indicate:
✦ Disk failure
✦ A disk physically removed from its slot.
and 4.2. Disk Num-
Fig. 11 shows how the Windows
for further information on the
Disk 0 is part of a mirror that
continued on the next page>>
MANUAL NOTE: To best demonstrate disk numbering, this sec-
tion uses the LaCie default configuration of a 5big Storage Server
with five disks. The amount of disks as well as the RAID configura-
tions may appear different based upon your 5big Storage Server.
DESIGNED BY NEIL POULTON
0 1 2
LAN 1 LAN 1 LAN 2 USB USB USB USB
eSATA eSATA
Fig. 11
Disk Numbering
page 11
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