Ess disk, Attributes, Logical – HP NonStop G-Series User Manual
Page 112: Backup path, Primary path, Disk pair
ESS Disk
Enterprise Storage System disk drive. ESS disks are visible in the tree pane and in the Inventory view of the
Management window. In the tree pane, expand the ESS Disk Collection object to see the individual ESS disk drives.
In the Inventory view, each ESS disk drive is listed on a separate line. ESS disk drives are not visible in the Physical
view.
ESS disks connect to your system through FCSAs in
enclosures. For more information, see the
Modular I/O Installation and Configuration Guide and the Fibre Channel ServerNet Adapter Installation and Support
Guide.
Location in OSM Tree: System > ESS Disk Collection > ESS Disk
Example: ESS Disk $DAVON
Attributes
ESS Disk
Displayed in the Attributes tab and Attributes dialog box only if the value is something
other than OK.
Service State
Logical
The logical device number used by the operating system to identify the disk.
Example: 7
Logical Device Number
The current state of the backup disk path.
.
Backup Path State
The total size (in kilobytes) of disk storage space.
Media Size
The path that is currently accessing the disk.
Values: Primary, Backup, Mirror, Mirror Backup
Active Path
The current state of the primary disk path.
Primary Path State
Backup Path
Displays the configured location of the
containing the backup disk path
SCSI controller. This attribute is displayed even if the physical FCSA FSAC is not
present.
Configured FSAC Location
Indicates whether the disk is active or inactive.
Access State
The logical unit number of the disk.
Example: 0
LUN
Represents the actual presence of the FCSA FSAC containing the backup disk path
SCSI controller. This attribute is displayed only if the physical FCSA FSAC is present.
FSAC
A number that uniquely identifies the port through which the disk is connected.
Port Name
Primary Path
Displays the configured location of the
containing the primary disk path
SCSI controller. This attribute is displayed even if the physical FCSA FSAC is not
present.
Configured FSAC Location
Indicates whether the disk is active or inactive.
Access State
The logical unit number of the disk.
Example: 0
LUN
Represents the actual presence of the FCSA FSAC containing the primary disk path
SCSI controller. This attribute is displayed only if the physical FCSA FSAC is present.
FSAC
A number that uniquely identifies the port through which the disk is connected.
Port Name
Disk Pair
The name of the ESS disk that this disk is paired with. A "-P" designation following
the disk name indicates primary disk. "-M" indicates mirrored disk.
Disk Pair Name
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System Resources