HP Surestore Disk Array 12h - And FC60 Service Manual page 266

Glossary
Maximum Environmental Limit The maximum limit of temperature, humidity, vibration, shock, and
Migration
Mirrored Disks
Multiplexer
MUX
Offline
Online
Previously Used Disk
Primary Array Controller
266
altitude, which should not be exceeded during operation of an the
product. See Recommended Operating Range.
Migration is the movement of data between one RAID mode and
another RAID mode.
A Mirrored Disk is an entire duplication of data. Traditional mirrored
disks require disks of identical capacity. The disk array uses a special
type of mirroring called RAID 0/1 mode, or Block Mirroring.
A device that allows two or more signals to be transmitted
simultaneously on a single channel.
A multiplexer enables SCSI devices to interface directly with hosts that
have Fibre Channel technology. The MUX contains one or two FC
ports and up to four fast/wide SCSI differential ports.
Taking a SCSI adapter offline means terminating inputs/outputs and
suspending all transactions going from the MUX to the specified SCSI
devices. The SCSI adapter is no longer active or available for access.
Taking the MUX offline indicates that all SCSI and FC adapters in the
MUX are offline.
For a SCSI adapter, online indicates the SCSI adapter is active and
available for access and input/output processing.
For the MUX, online indicates that at least one adapter in the MUX is
active and available for access.
A disk that has been used in another disk array. The Disk Stamp
indicates that this disk was once part of another array. Including it will
destroy any data on the disk.
In disk arrays with two controllers, the Primary Array Controller is the
one that manages the disk array hardware devices, such as the fan
modules and the control panel display module.