Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

528 Index
maximum number in a cluster 387
node abort in clusters 407
requesting status of 413
shutdown in clusters 406
use of vxclustadm to control cluster
functionality 401
NODEVICE plex condition 220
nodg 159
nomanual path attribute 140
non-autotrespass mode 122
non-layered volume conversion 292
Non-Persistent FastResync 67
nopreferred path attribute 140
nopriv disk type 80
nopriv disks
issues with enclosures 94
O
objects
physical 20
virtual 25
off-host processing 361, 387
OFFLINE plex state 218
online backups
implementing 363
online invalid status 120
online relayout
changing number of columns 290
changing region size 291
changing speed of 291
changing stripe unit size 290
combining with conversion 292
controlling progress of 291
defined 54
destination layouts 286
failure recovery 58
how it works 54
limitations 57
monitoring tasks for 291
pausing 291
performing 286
resuming 291
reversing direction of 292
specifying non-default 290
specifying plexes 290
specifying task tags for 290
temporary area 54
transformation characteristics 58
transformations and volume length 58
types of transformation 287
viewing status of 291
online status 120
ordered allocation 237, 243, 249
OTHER_DISKS category 83
overlapped seeks 500
P
parity in RAID-5 46
partial device discovery 82
partition size
displaying the value of 141
specifying 142
path aging 463
path failover in DMP 124
pathgroups
creating 128
paths
disabling for DMP 147
enabling for DMP 148
setting attributes of 140
performance
analyzing data 457
benefits of using VxVM 451
changing values of tunables 462
combining mirroring and striping 453
effect of read policies 454
examining ratio of reads to writes 459
hot spots identified by I/O traces 460
impact of number of disk group configuration
copies 461
improving for instant snapshot synchronization 337
load balancing in DMP 125
mirrored volumes 452
monitoring 455
moving volumes to improve 458
obtaining statistics for disks 458
obtaining statistics for volumes 456
RAID-5 volumes 453
setting priorities 455
striped volumes 452
striping to improve 459
tracing volume operations 456
tuning large systems 461
tuning VxVM 460
using I/O statistics 457
persistent device name database 92
persistent device naming 92
Persistent FastResync 68, 69, 70