VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Index
428
destination layouts, 304
failure recovery, 46
how it works, 38
limitations, 44
monitoring tasks for, 306
pausing, 306
performing, 304
resuming, 307
reversing direction of, 307
specifying non-default, 305
specifying plexes, 305
specifying task tags for, 306
temporary area, 39
transformation characteristics, 45
transformations and volume length, 46
types of transformation, 41
viewing status of, 306
ordered allocation, 223, 232, 239
P
parity in RAID-5, 29
path failover in DMP, 108
pathgroup
create, 112
remove, 117
performance
analyzing data, 393
benefits of using VxVM, 386
changing values of tunables, 399
combining mirroring and striping, 388
effect of read policies, 389
examining ratio of reads to writes, 396
hot spots identified by I/O traces, 397
impact of number of disk group
configuration copies, 399
load balancing in DMP, 109
mirrored volumes, 387
monitoring, 391
moving volumes to improve, 394
obtaining statistics for disks, 394
obtaining statistics for volumes, 392
RAID-5 volumes, 388
setting priorities, 391
striped volumes, 386
striping to improve, 395
tracing volume operations, 392
tuning large systems, 398
tuning VxVM, 398
using I/O statistics, 393
Persistent FastResync, 54, 55
physical disks
adding to disk groups, 138
clearing locks on, 149
complete failure messages, 318
determining failed, 317
displaying information, 102
displaying information about, 134
displaying spare, 321
enabling, 98
excluding free space from hot-relocation
use, 325
failure handled by hot-relocation, 313
initializing, 74
installing, 79
making available for hot-relocation, 322
making free space available for
hot-relocation use, 326
marking as spare, 322
moving between disk groups, 147, 161
moving disk groups between systems, 148
moving volumes from, 282
partial failure messages, 317
postponing replacement, 94
releasing from disk groups, 169
removing, 91, 94
removing from disk groups, 139
removing from pool of hot-relocation
spares, 324
removing with subdisks, 92, 93
replacing, 94
replacing removed, 96
reserving for special purposes, 101
spare, 318
taking offline, 99
unreserving, 101
physical objects, 4
plex conditions
IOFAIL, 199
NODAREC, 199
NODEVICE, 199
RECOVER, 200
REMOVED, 200
plex kernel states
DETACHED, 200
DISABLED, 200
ENABLED, 200
plex states
ACTIVE, 196