Glossary
Ensure
you
are
familiar
with
the
list
of
terms
and
their
definitions
used
in
this
guide.
A
asymmetric
virtualization
A
virtualization
technique
in
which
the
virtualization
engine
is
outside
the
data
path
and
performs
a
metadata-style
service.
The
metadata
server
contains
all
the
mapping
and
locking
tables
while
the
storage
devices
contain
only
data.
See
also
symmetric
virtualization
C
cache
A
high-speed
memory
or
storage
device
used
to
reduce
the
effective
time
required
to
read
data
from
or
write
data
to
lower-speed
memory
or
a
device.
Read
cache
holds
data
in
anticipation
that
it
will
be
requested
by
a
client.
Write
cache
holds
data
written
by
a
client
until
it
can
be
safely
stored
on
more
permanent
storage
media
such
as
disk
or
tape.
cluster
In
SAN
Volume
Controller,
a
pair
of
nodes
that
provides
a
single
configuration
and
service
interface.
CIM
See
Common
Information
Model
.
Common
Information
Model
(CIM)
A
set
of
standards
developed
by
the
Distributed
Management
Task
Force
(DMTF).
CIM
provides
a
conceptual
framework
for
storage
management
and
an
open
approach
to
the
design
and
implementation
of
storage
systems,
applications,
databases,
networks,
and
devices.
D
degraded
Pertaining
to
a
valid
configuration
that
has
suffered
a
failure
but
continues
to
be
supported
and
legal.
Typically,
a
repair
action
can
be
performed
on
a
degraded
configuration
to
restore
it
to
a
valid
configuration.
directed
maintenance
procedures
The
set
of
maintenance
procedures
that
can
be
run
for
a
cluster.
These
procedures
are
documented
in
the
service
guide.
disk
zone
A
zone
defined
in
the
storage
area
network
(SAN)
fabric
in
which
the
SAN
Volume
Controller
can
detect
and
address
the
logical
units
that
the
disk
controllers
present.
E
error
code
A
value
that
identifies
an
error
condition.
excluded
In
SAN
Volume
Controller,
the
status
of
a
managed
disk
that
the
cluster
has
removed
from
use
after
repeated
access
errors.
extent
A
unit
of
data
that
manages
the
mapping
of
data
between
managed
disks
and
virtual
disks.
©
Copyright
IBM
Corp.
2003,
2005
79
Summary of Contents for TotalStorage SAN Volume Controller
Page 1: ...IBM TotalStorage SAN Volume Controller Installation Guide V ersion 2 1 0 SC26 7541 04...
Page 2: ......
Page 3: ...IBM TotalStorage SAN Volume Controller Installation Guide V ersion 2 1 0 SC26 7541 04...
Page 8: ...vi IBM TotalStorage SAN Volume Controller Installation Guide...
Page 10: ...viii IBM TotalStorage SAN Volume Controller Installation Guide...
Page 11: ...Tables 1 Uninterruptible power supply support guidelines 17 Copyright IBM Corp 2003 2005 ix...
Page 12: ...x IBM TotalStorage SAN Volume Controller Installation Guide...
Page 30: ...xxviii IBM TotalStorage SAN Volume Controller Installation Guide...
Page 44: ...14 IBM TotalStorage SAN Volume Controller Installation Guide...
Page 62: ...32 IBM TotalStorage SAN Volume Controller Installation Guide...
Page 102: ...72 IBM TotalStorage SAN Volume Controller Installation Guide...
Page 108: ...78 IBM TotalStorage SAN Volume Controller Installation Guide...
Page 114: ...84 IBM TotalStorage SAN Volume Controller Installation Guide...
Page 121: ......
Page 122: ...Part Number 64P8289 Printed in USA SC26 7541 04 1P P N 64P8289...
Page 123: ...Spine information IBM TotalStorage SAN Volume Controller Installation Guide Version 2 1 0...
