Red Hat ENTERPRISE LINUX 3 - INTRODUCTION TO SYSTEM ADMINISTRATION Administration Manual page 195

R
RAID
arrays
management of, 109
raidhotadd command, use of, 110
rebuilding, 110
status, checking, 109
arrays, creating, 108
after installation time, 108
at installation time, 108
contrasted with LVM, 81
creating arrays
(See RAID, arrays, creating)
implementations of, 79
hardware RAID, 79
software RAID, 79
introduction to, 75
levels of, 76
nested RAID, 78
RAID 0, 76
RAID 0, advantages of, 76
RAID 0, disadvantages of, 76
RAID 1, 77
RAID 1, advantages of, 77
RAID 1, disadvantages of, 77
RAID 5, 77
RAID 5, advantages of, 78
RAID 5, disadvantages of, 78
nested RAID, 78
overview of, 75
raidhotadd command, use of, 110
RAM, 47
read permission, 125
recursion
(See recursion)
Red Hat Enterprise Linux-specific information
automation, 8
backup technologies
AMANDA, 176
cpio, 174
dump, 175
tar, 174
backups technologies
overview of, 173
bash shell, 8
communication, 9
disaster recovery, 173
documentation, 9
intrusion detection systems, 10
PAM, 10
perl, 8
resource monitoring
bandwidth, 38
CPU power, 38
memory, 53
resource monitoring tools, 18
free, 18, 53
iostat, 38
OProfile, 18
sar, 39, 41, 54
Sysstat, 18
top, 18, 40
vmstat, 18, 38, 40, 54
RPM, 10
security, 10
shell scripts, 8
software support, 173
support, software, 173
redhat-config-printer
(See printer configuration)
resource abuse, 125
resource monitoring, 13
bandwidth, 16
capacity planning, 14
concepts behind, 13
CPU power, 15
memory, 16
storage, 17
system capacity, 14
system performance, 13
tools
free, 18
GNOME System Monitor, 20
iostat, 22
mpstat, 22
OProfile, 25
sa1, 22
sa2, 22
sadc, 22
sar, 22, 24
Sysstat, 22
top, 19
vmstat, 20
tools used, 18
what to monitor, 14
resources, importance of, 5
resources, system
bandwidth, 31
buses role in, 31
buses, examples of, 32
capacity, increasing, 33
datapaths, examples of, 32
datapaths, role in, 32
load, reducing, 33
load, spreading, 33
monitoring of, 16
overview of, 31
problems related to, 32
solutions to problems with, 33
memory
(See memory)
183