HP NetServer AA 6200 Administrator's Manual page 259

IOP link. See IL.
lock step. A mode in which two CEs
simultaneously execute the same copy of the
Windows operating system and any Windows
applications.
logical disk. A CE disk that is composed of one
disk from each IOP. For example: A logical mirror
set identified by the name "Disk0" is composed of
two physical disks: one residing on IOP1 and the
other residing on IOP2.
Marathon Interface Card. See MIC.
MIC. Marathon Interface Card. A PCI-based
Endurance adapter that enables bidirectional
communication between systems in an Endurance
server.
MIC status lights. The lights on the MIC
handles that indicate whether various MIC
communications are functioning properly.
minimum downtime upgrade. A hardware
or software upgrade that requires the Endurance
server to be shut down (typically for a few
minutes) and rebooted.
mirror set. The pair of physical SCSI disks (one
on each IOP) that function as one logical disk. The
disks in a mirror set process and maintain identical
information. If a fault occurs on one of the physical
disks in a mirror set and the disk cannot be
accessed, the Endurance server automatically uses
the remaining disk in the mirror set to provide
continuous access without losing data or network
connectivity.
HP Netserver AA Solution Administrator's Guide
mirrored disk. A physical SCSI disk that
resides on the IOP and stores data for the
Endurance server, and for which there is a
corresponding disk on the other IOP. See also
mirror set.
mirroring. A process for creating and
maintaining a set of identical disk images on
separate physical SCSI disks. See also
non-identical disks. SCSI disks configured as
a mirror set that share SCSI variety
characteristics, such as both being wide or both
being narrow, but may be different sizes, and may
also have different model numbers, or be from
different manufacturers. See also
non-mirrored device. A device in an
Endurance configuration that does not have a
redundant counterpart, such as a tape drive, a
floppy disk, or a CD-ROM. If a non-mirrored
device is failed out of an Endurance configuration,
it has no counterpart to provide continuous device
access. A non-mirrored device cannot be failed
over automatically.
offline. A component state that indicates the
component cannot communicate with the rest of
the Endurance server configuration. For
component specific information on this state, refer
to Chapter 2.
online. A component state that indicates the
component can communicate with the rest of the
Endurance server configuration. Some
components transition from this state to active. For
component specific information on this state, refer
to Chapter 2.
pointer. An industry-standard term for devices
such as a mouse, trackball, or touchpad.
mirror set.
mirror set.
Glossary-3