RTM-ATCA-SXXX Overview
6806800H62B ATCA‐S201InstallationandUseGuide70
Table 21 HTML tool, Emerson ATCA-S201 Physical Disk (configuration screen)
Parameter Description
Device Name Linux SCSI device name, from ATCA-S201 management perspective
Online: indicates the device is active and ready for I/O State
Offline:
Raw: indicates the device was not formatted by the ATCA-S201 Type
file: indicates the device was formatted by the ATCA-S201
Parent Identifies the volume that claims ownership to a disk. ‘Unknown’
indicates disk has no known volume ownership.
Host/Bus/Target/LUN Identifies the SCSI parameters used to address the physical device
Vendor/model/Rev Identifies the vendor and revision of the disk device. If vendor =
LSILogic, this physical device is a RAID volume managed by the ATCA-
S201 resources.
6.3 Create a logical Volume Group (/dev/vga)
A volume group must contain at least one physical disk member. The figure below
outlines the steps that will be taken to create volume groups and logical device/disk
volumes.
Emerson ATCA-S201
iSCSI
nfs
smb
Shares
LVM2
LVM2 Configuration
MD RAID
Configuration
Ha rdwa re RAID
Configuration
Physical Disks
/dev/sda
/dev/sdb
/dev/sdc
/dev/sdd
/dev/sde
/dev/sdf
/dev/sdg
Maintenance
+
‐
+
+
+
‐
‐
‐
+
RAID
Physicaldisks
(example:/dev/sda)
Volumegroup
(example:/dev/vga)
Logical disk
(example: /dev/vga/lva0)
55% spare
30% iSCSI
15% nfs 40% iSCSI
20% iSCSI
20% nfs
20% cifs
‐
Figure 22 HTML tool, Main navigation side-bar, LVM2->Configuration
Logical volumes are comprised of one or more physical disk members. Using the
HTML configuration tool, the user may view the available set of physical disks and
assign them to volume groups.
Emerson ATCA-S201 LVM2 LVM2 Configuration
The screen shows physical disks which are available for a new volume group
definition.
