Index

Symbols

/dev/dskentries
.....determining for exported filesystems	3-12
/etc/init.d/nfs.server
.....tuning	4-19
/etc/system	4-20
/etc/system
.....tuning	4-19

Numerics

100 Mbit Ethernet	4-27

A

adding hosts	4-13
ATM	4-4

B

badxid	5-3
books, related	xiv
bottlenecks, pinpointing	A-2
bridges	2-16
bridges and routers dropping packets	3-4
buffer cache
.....adjusting
............bufhwm	4-23
.....increasing	3-20
buffer sizes
.....identifying	4-20
bufhwm	4-23

C

cache file system
.....adding	4-8
cache hit rate	3-23, 4-24, 5-4
cache size
.....adjusting
............maxusers	4-21
checking
.....client	3-25
.....network	3-3
.....NFS server	3-7, 3-8
client
.....bottlenecks	5-3
.....checking	3-25
.....NFS problems	3-26
.....ports	2-15
configuration recommendations
.....NFS performance	4-1

configuring
...../etc/init.d/nfs.server	4-19
...../etc/system	4-19
.....CPUs	4-12
.....disk drives	4-6
.....memory	4-14
CPU idle time	5-4
CPU utilization
.....determining	4-12
CPUs
.....adding	4-13
.....configuring	4-12
.....in NFS servers
............guidelines	4-13
cron	4-8
crontab	3-20

D

data, collecting
.....long term basis	3-20
df -k	3-10
Directory Name Lookup Cache(DNLC)	4-24
disk
.....access load
............spreading	4-10
.....activity, reporting	A-2
.....array
............utilizing	2-23
.....concatenation	4-10
.....configuration	4-11
.....constraints, easing of	4-6
.....load
............spreading the load out	3-20
.....mirroring	4-10
.....statistics
............determining for each disk	3-15
.....striping	4-10
.....utilization	4-6
disk drive
.....configuration rules	4-9
.....configuring	4-6
.....data layout	4-11
......load balancing	5-4
disk names into disk numbers
......translating	3-16
DNLC	4-24
......cache hits	3-23
......hit rate	3-23
......setting	5-4
drive
......data layout	4-11
......load balancing	5-4
dropped packets	5-5
dropping packets
......bridges and routers	3-4

E

echo packets
......round trip time	3-5
Ethernet	4-4
......packets, displaying information	A-3
......switch
............client ports	2-15
............multiplexed ports	2-15
............server ports	2-15
Excelan Lanalyzer	A-3
exporting file systems
......determining	3-9

F

FastEthernet	4-27
FDDI	4-4, 4-27
file system
......heavy usage	4-7
......paging from disk	4-14
......replication guidelines	4-7
file systems
......mounted
............determining	3-9
............displaying statistics	3-28
flow diagram
......NFS
............file server comparison	2-2

H

hit rate	3-23, 4-24

I

I/O load
.....not balanced across disks	5-4
I/O wait time
.....high	5-4
inode cache
.....increasing	4-26
interlace size	4-10
interpreting LADDIS results	A-12
iostat	3-15, 3-16, 5-4, A-2
iostat -x	5-4

J

JumpStart	4-8

K

kernel variables
.....modifying using/etc/system	4-20

L

LADDIS
.....baseline results (idealized)	A-12, A-13
.....overview	A-10
.....results, interpreting	A-12
LAN analyzers	A-3
load balancing	4-11
ls -lL
.....identifying/dev/dskentries	3-13

M

maxusers	4-21
.....parameters derived from	4-22
memory bound
.....determining	4-14
memory configuration	4-14, 4-15
memory requirements
......calculating	4-15
metadisk	3-10
metastat	3-10
mpstat	4-12
multiplexed ports	2-15
multiplexing, network	2-15

N

ncsize,setting	3-23, 4-25
NetMetrix	A-3
netstat	A-3
netstat -i	3-4, 5-1, 5-5
netstat -m	5-4
netstat -rs	5-5
netstat -s	5-4
network
......checking	3-3
......collisions, checking with netstat	3-4
......configuring	4-3
......device monitoring andtroubleshooting	A-3
......monitoring tools	A-3
......multiplexing	2-15
......overloaded	5-5
......problems	5-5
......requirements
............attribute-intensiveapplications	4-4
............data-intensive applications	4-3
............systems with more than one classof users	4-5
......subnetting	A-4
......tracing calls	A-4
......tuning	4-3
Network General Sniffer	A-3
network-related bottlenecks	5-5
network-related data structures,displaying contents	A-3

NFS
.....characteristics	1-1
.....file server comparison flowdiagram	2-2
.....load, balancing	A-2
.....monitoring tools	A-2
.....network and performance tools	A-1
.....operation throughput	A-10
.....operations	3-24
.....performance
............increasing by using theSPARCstorage Array	2-26
.....problems
............client	3-26
............displaying server statistics	3-21
.....requests	1-1
.....server
............checking	3-7
...................steps	3-8
.....server not responding	5-3
.....server workload
............balancing	4-2
.....statistics, reporting	A-2
.....threadsin/etc/init.d/nfs.server	4-19
.....transactions, showing	A-2
nfsstat	5-4, 5-5, A-2
nfsstat -c	3-26
nfsstat -m	3-28
nfsstat -rc	5-3
nfsstat -s	3-21, 5-1
nfswatch	A-2
number of packets and collisions/errorsper network	3-4

O

Online Disk Suite	3-20, 4-10
.....spreading disk access load	4-10
.....using log based file systems with	4-10
optimizing data layout on disk drives	4-10

P

packet analysis	A-3
packet size specifications	3-5
packets
......calculating packet error rate	3-4
......dropped	5-5
......dropping bridges and routers	3-4
......echo
............round trip time	3-5
......Ethernet
............displaying information	A-3
parameters
......tuning	4-19
performance tuning recommendations	5-2
performance-monitoring tools	A-1
ping	A-3
ping -s	3-5, 3-6
poor response time	5-5
presto	3-24
Prestoserve NFS accelerator
......adding	4-17
......checking its state	3-24

R

RAID	2-25
random I/O capacity	4-6
read throughput
......increasing	4-27
read-aheads
......increasing
............NFS clients	4-27
read-only data	4-7
related books	xiv
replicating
......data	4-7
......file systems	4-7
response time	A-10
......poor	5-5

routers	2-16

S

sar	3-16, A-2
scan rate	4-14
server
.....bottlenecks	5-4
.....checking	3-7
.....ports	2-15
.....statistics
............identifying NFS problems	3-21
share	3-9
SharpShooter	A-2
slow disk access times	5-4
slow response	5-4
snoop	5-4, A-3
SPARCcenter 2000
.....expandability	2-21
.....features	2-22
.....input/output	2-21
.....main memory	2-21
.....modules	2-21
.....overview	2-21
SPARCcenter 2000E
.....expandability	2-21
.....features	2-22
.....input/output	2-21
.....main memory	2-21
.....modules	2-21
.....overview	2-21
SPARCcluster 1
.....2 or 4 SPARCserver 10 systems	2-12
.....accessing hosts	2-13
.....architecture
............implementation	2-13
.....differential SCSI disk tray	2-12
.....Ethernet switch	2-12
............connections to	2-14
............description of	2-12
.....external
............network connections	2-17
.....features	2-10, 2-12
......internal
............network	2-14
......logical architecture	2-12
......multiplexing functions	2-14
......multi-tape backup tray	2-12
......network
............internal	2-14
......overview	2-10
......physical architecture	2-14
......power distribution unit	2-12
......primary network	2-17
......terminal concentrator	2-12
............description of	2-13
SPARCserver 10
......configurations	2-6
......features	2-7
......overview	2-6
SPARCserver 1000
......features	2-20
......major components	2-20
......overview	2-19
SPARCserver 1000E
......features	2-20
......major components	2-20
......overview	2-19
SPARCserver 20
......configurations	2-8
......features	2-9
......overview	2-8
SPARCserver 5
......features	2-5
......overview	2-5
SPARCserver 5 to SPARCserver 20upgrade	2-5
SPARCstorage Array subsystem
......features	2-23
......utilizing	2-23
steps
......checking each client	3-25
......checking the network	3-3
......checking the server	3-8

.....tuning	3-1, 4-2
............general performanceimprovement	3-1
............performance problemresolution	3-2
SunNet Manager	A-3
swap space
.....configuration	4-15
.....requirements
............calculating	4-16
symbolic links
.....eliminating	3-22
system activity, reporting	A-2

T

troubleshooting actions	5-1
tuning	5-5
...../etc/system	4-19
.....CPUs	4-12
.....cycle	1-2
.....disk drives	4-6
.....memory	4-14
.....network	4-3
.....NFS performance improvement	4-1
.....NFS threads in /etc/init.d/nfs.server	4-19
.....parameters	4-19
.....performance problem resolution	5-5
.....recommendations
............NFS performance	4-1
.....steps	3-1, 3-2, 4-2
............general performanceimprovement	3-1
............performance problemresolution	3-2
.....variables
............identifying	4-20
typographic changes and symbols	xiv

U

ufs_ninode	4-26
update schedules	4-8
upgrade
......SPARCserver 5 to SPARCserver 20	2-5
utilization
......disk	4-6

V

vfstab	4-8
virtual memory statistics, reporting	A-2
vmstat	4-14, A-2
vmstat -s	3-23, 4-24, 5-4

W

whatdevscript	3-12

Z

zone bit recording	4-11