Emerson ATCA-S201 사용자 설명서

RTM-ATCA-SXXX Overview 

6806800H62B 

ATCA‐S201 Installation and Use Guide 

 

58 

Emerson ATCA-S201

iSCSI
nfs
smb

Sha res

LVM2

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LVM2 Configura tion

MD RAID

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Configura tion

Ha rdware RAID



Configura tion

Physical Disks

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/dev/sda

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/dev/sdb

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/dev/sdc

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/dev/sdd

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/dev/sde

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/dev/sdf

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/dev/sdg

Ma intena nce

+

+

+

+

+

RAID

Physical disks

(example: /dev/sda)

Volume group

(example: /dev/vga)

Logical disk

(example: /dev/vga/lva0)

 

Figure 15 HTML tool, Main navigation side-bar, Hardware RAID->Configuration 

These menus are used to view and arrange the hardware disk pool.  The hardware 

disk pool is the raw (unformatted/unassigned) disk capacity or resources available to 

a ATCA-S201.  In SNIA terminology, these are primordial disks.  This storage is block 

I/O comprised of the following: 

1.  AMC SAS/SATA hard drive(s)  

2.  RTM SAS/SATA hard drive(s)  

3.  Disks or volumes accessed via an AMC SAS controller  

4.  Disks or volumes access via an AMC FC controller  

The sum capacity of the hardware disk pool resources equals the total size of 

storage available to the particular ATCA-S201.   

5.1.1  JBOD mode 

Just a bunch of disks (JBOD) is a term to describe disks which are not part of a RAID 

or logical device definition.  By default, a new ATCA-S201 will scan and display all 

discovered disks 1:1 in the physical disk menu.  These disks may be used as-is, or 
grouped using the configuration tools to create RAID or combined logical volumes.   

Note: If the installation will use JBOD, and not use RAID, the user may proceed to the 
next chapter. 

5.2  Hardware RAID configuration Menu usage 

On a new system installation, this configuration menu enables the creation of RAID 

disk(s) that will appear in the physical disk menu.  Once created, RAID disks are 
managed in the same manner as other physical disks, but boast benefits including 

improved performance and redundancy.