VERITAS Volume Manager 4.1 Administrator's Guide

Index
443
converting to striped-mirror, 322
creating, 248
defined, 226
performance, 397
mirroring
defined, 25
mirroring plus striping, 27
mirrors
adding to volumes, 273
boot disk, 89
creating of VxVM root disk, 90
creating snapshot, 310
defined, 17
removing from volumes, 276
specifying number of, 242
multipathing
displaying information about, 130
N
names
changing for disk groups, 165
defining for snapshot volumes, 313
device, 4, 64
disk media, 13
plex, 16
plex attribute, 224
renaming disks, 104
subdisk, 14
subdisk attribute, 209
VM disk, 14
volume, 16
naming scheme
changing for disks, 78
naming schemes
for disks, 64
ndcomirror attribute, 244, 278
NEEDSYNC volume state, 265
NODAREC plex condition, 217
nodes
in clusters, 352
maximum number in a cluster, 351
node abort in clusters, 367
shutdown in clusters, 365
NODEVICE plex condition, 217
non-layered volume conversion, 322
Non-Persistent FastResync, 53
nopriv disks
issues with enclosures, 80
O
objects
physical, 4
virtual, 10
off-host processing, 351, 383
OFFLINE plex state, 215
online relayout
changing number of columns, 319
changing region size, 321
changing speed of, 321
changing stripe unit size, 319
combining with conversion, 322
controlling progress of, 320
defined, 39
destination layouts, 318
failure recovery, 43
how it works, 39
monitoring tasks for, 320
pausing, 320
performing, 318
resuming, 321
reversing direction of, 321
specifying non-default, 319
specifying plexes, 319
specifying task tags for, 320
temporary area, 40
transformation characteristics, 43
viewing status of, 320
ordered allocation, 237, 246, 253
P
parity in RAID-5, 30
path failover in DMP, 114
pathgroup
create, 120
remove, 125
performance
analyzing data, 402
benefits of using VxVM, 395
changing values of tunables, 407
combining mirroring and striping, 397
effect of read policies, 398
examining ratio of reads to writes, 405
hot spots identified by I/O traces, 405
impact of number of disk group
configuration copies, 407
load balancing in DMP, 115
mirrored volumes, 396
monitoring, 399