RTM-ATCA-SXXX Overview
6806800H62B ATCA‐S201InstallationandUseGuide57
5 RAID Volume
Configuration
1
RS232
Console Setup
2
Ethernet
Comm. Setup
3
RAID
LUN Setup
4
Logical Volume
Setup
5
iSCSI
Device Setup
6
NFS / SMB
Share Setup
Configuration Step:
This chapter explains how to prepare and configure RAID volumes that are ultimately mapped to
the various IP services advertised on the ATCA-S201 ATCA carrier board. These virtual RAID
volumes are created from in-chassis storage pools comprised of AMC modules with SAS or SATA
disks. Hardware RAID services are available for disk striping (RAID0) and extended volume
mirroring (RAID1, RAID1E). Software RAID services are available for parity based disk striping
algorithms including RAID4, RAID5 and RAID6. The Software RAID features of this product can
provide better capacity utilization efficiency, but can consume a greater percentage of CPU and
system memory bandwidth.
NOTE: If RAID is not needed, please proceed to the next chapter.
iSCSI & NAS
AMC disk
modules
HW RAID
Physical
disks
sda
sdb
sdc
Zone-2 Fabric
Zone-2 Base
Zone-3 RTM
IP network
IP host
1:1 mapping (JBOD)
1:1 mapping (JBOD)
Site: B1
Site: B2
Site: B3
Site: B4
Logical
groups
&
volumes
vgz
vga
CIFS
share points
NFS
share points
iSCSI
LUNs
3
5.1 Hardware RAID configuration
Administrators will use two inter-related menus to enable and configure the
hardware RAID features of
ATCA-S201. These configuration tools appear within the
html tool’s main navigation panel on the left side as shown in the figure below.
Emerson ATCA-S201 Hardware RAID
Emerson ATCA-S201 Physical Disks
NOTE: Hardware RAID should be applied before defining volume groups using the
logical volume manager (LVM).
