Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

partition size (continued)
specifying 182
path aging 505
path failover in DMP 145
pathgroups
creating 153
paths
disabling for DMP 187
enabling for DMP 188
setting attributes of 177, 179
performance
analyzing data 490
benefits of using VxVM 485
changing values of tunables 495
combining mirroring and striping 487
effect of read policies 487
examining ratio of reads to writes 493
hot spots identified by I/O traces 493
impact of number of disk group configuration
copies 495
load balancing in DMP 147
mirrored volumes 486
monitoring 488
moving volumes to improve 491
obtaining statistics for disks 491
obtaining statistics for volumes 489
RAID-5 volumes 487
setting priorities 488
striped volumes 486
striping to improve 492
tracing volume operations 489
tuning large systems 494
tuning VxVM 494
using I/O statistics 490
persistence
device naming option 101
persistent device name database 103
persistent device naming 103
Persistent FastResync 65–67
physical disks
adding to disk groups 219
clearing locks on 227
complete failure messages 410
determining failed 410
displaying information 124
displaying information about 124, 217
displaying spare 412
enabling 136
enabling after hot swap 136
physical disks (continued)
excluding free space from hot-relocation use 415
failure handled by hot-relocation 407
initializing 98
installing 108
making available for hot-relocation 413
making free space available for hot-relocation
use 416
marking as spare 413
moving between disk groups 221, 258
moving disk groups between systems 226
moving volumes from 372
partial failure messages 409
postponing replacement 131
releasing from disk groups 264
removing 127, 131
removing from disk groups 220
removing from pool of hot-relocation spares 414
removing with subdisks 129–130
replacing 131
replacing removed 134
reserving for special purposes 138
spare 411
taking offline 137
unreserving 139
physical objects 21
ping-pong effect 152
plex conditions
IOFAIL 285
NODAREC 285
NODEVICE 285
RECOVER 286
REMOVED 286
plex kernel states
DETACHED 286
DISABLED 286
ENABLED 286
plex states
ACTIVE 283
CLEAN 283
DCOSNP 283
EMPTY 283
IOFAIL 283
LOG 283
OFFLINE 284
SNAPATT 284
SNAPDIS 284
SNAPDONE 284
SNAPTMP 284
Index580