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6806800H62B ATCA‐S201InstallationandUseGuide68
6.2 Viewing Physical disks
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.
Emerson ATCA-S201 Physical Disks
This top html menu provides a summary list of current physical disks.
Note: The disks appearing in this view will dynamically change to reflect alterations
made with MD_RAID configuration menus.
Re‐DrawTree
Emerson ATCA-S201
iSCSI
nfs
smb
Shares
LVM2
MD RAID
Hardwa re RAID
Physical Disks
/dev/sda
/dev/sdb
/dev/sdc
Maintenance
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StorBlade99 ATCA-S201 Physical Disk Summary
DeviceName ParentDevice State Vendor Model Rev
/dev/ sda U nknown Offline HITACHI HUC101414CSS300 A410
/dev/sdb Unknow n Offline FUJITSU MAY2073RC 0103
/dev/ sdc U nknown Offline LSILOGIC LogicalVolume 3000
Update Java Menu to reflect added disks
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Figure 20 HTML tool, Emerson ATCA-S201 Physical Disk (summary screen)
6.2.1 Interpreting physical disk status
Physical disks resources can be mapped to logical volume groups, which are split
into Logical device ‘slices’ which are then shared as iSCSI or NAS. The number of
Physical disks may not necessarily correlate 1:1 with the hardware disk pool (e.g.
number of AMC drive carriers), because physical disks may include volumes created
through RAID services that mask the individual hardware disk members. From the
ATCA-S201 perspective, physical disks are presented as Linux SCSI devices
(/dev/sd[a-z]).
Status description
Online Device is actively used as either a iSCSI export or NAS share
volume
Offline Device is available for iSCSI or NAS operations.