System information
Endurance FTvirtual Server Administrator’s Guide Glossary-1
boot disk. A SCSI disk that contains the
Windows operating system. For the Endurance
FTvirtual Server
, the boot disk for the FTvirtual
Server is a member of a mirrored disk set that
physically resides on the CoServers. The boot disk
for a CoServer is non-mirrored and local to that
CoServer.
booting. A system process that includes passing
POST and loading the system’s Windows
operating system.
callout. The selection by the Endurance
fault
handling software of a specific component as
being responsible for a failure.
component. Any part of the Endurance
Configuration (such as Virtual Servers, CoServers,
Ethernets, or disks, etc.) that can be monitored or
controlled by Endurance software.
Constant computing. See
failover.
CoServer. One of the two servers that comprise
a fully redundant Endurance Configuration. Each
CoServer contains its own copy of the operating
system, SCSI devices, network devices, other I/O
devices, and, usually, a keyboard and mouse.
You log into the operating system of the CoServer
to gain access to the FTvirtual Server Desktop and
also when you perform certain maintenance tasks
on the physical components in the server.
CoServer Link. CSL. A dedicated private
network for completing mirror copies (transferring
mirrored disk data) and for communication
between the CoServers. The CoServer Link is
physically supported by connecting two Ethernet
adapters, one in each CoServer. For fault tolerant
purposes and to eliminate the possibility of a single
point of failure, there are two CSLs in a Endurance
Configuration. Each CSL provides redundancy for
the other.
CSL. See CoServer Link.
Degraded. A state indicating that a Endurance
component is not operating at the same level as its
redundant counterpart. For example, if the Virtual
Server on one CoServer is Degraded, one
CoServer has a state of Good, while the other
CoServer has a state other than Good. For specific
information on this state as it applies to particular
components, refer to the Endurance FTvirtual
Server Administrator’s Guide.
disable. Manually remove a component from
the active Endurance Configuration. Components
are disabled by invoking a
Endurance Manager
option or an MTCCONS command.
Glossary