Emerson ATCA-S201 manual Hardware RAID configuration, Configuration Step

RTM-ATCA-SXXX Overview

			5	RAID Volume
				Configuration
Configuration Step:
1	2	3	4	5	6
RS232	Ethernet	RAID	Logical Volume	iSCSI	NFS / SMB
Console Setup	Comm. Setup	LUN Setup	Setup	Device Setup	Share Setup

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.

AMC disk		Physical	Logical	iSCSI & NAS
modules	3	disks	groups
			&
Site: B1			volumes	iSCSI
	HW RAID	sda	vga	LUNs
Site: B2					Zone-2 Fabric
						IP network
Site: B3	1:1 mapping (JBOD)	sdb		NFS	Zone-2 Base	IP host
				share points	Zone-3 RTM
Site: B4	1:1 mapping (JBOD)		vgz
		sdc
				CIFS
				share points

5.1Hardware 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).

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