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SMCC NFS Server Performance and Tuning Guide
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.........................Index

SYMBOLS
/dev/dskentries
...determining for exported file systems40
/etc/init.d/nfs.server
...tuning75
/etc/system74, 76
NUMERICS
100 Mbit Ethernet81
64-bit file size
...NFS version 32
A
asynchronous writes
...NFS version 33
ATM60
B
badxid85
books, relatedxiii
bottlenecks
...network-related87
...pinpointing90
bridges and routers dropping packets34
buffer cache
...adjusting,bufhwm77
...increasing48
buffer sizes, identifying75
bufhwm77
C
cache file system, adding63
cache hit rate50, 78, 86
cache size, adjusting, maxusers76
checking
...client52
...network32
...NFS server37
client
...bottlenecks85
...checking52
...NFS problems52
configuration recommendations for NFS
performance57
configuring
.../etc/init.d/nfs.server74
.../etc/system74
...CPUs68
...disk drives61
...memory70
CPU
...configuring68
...in NFS servers guidelines69
CPU idle time86
CPU utilization, determining68
cron63
crontab47
D
data structures, network-related, displaying
contents91
data, collecting, long term47
dedicated NFS server
...Netra NFS 150 Server11
df -k37
Directory Name Lookup Cache (DNLC)78
disk
...access load, spreading66
...activity, reporting90
...array, technology used26
...array, using24
...concatenation66
...configuration68
...constraints, easing of61
...load, spreading out48
...mirroring66
...statistics for each disk42
...striping66
...utilization61
disk drive
...configuration rules65
...configuring61
...data layout67
...load balancing86
disk names into disk numbers
...translating43
disk units
...SPARCstorage MultiPack28
...SPARCstorage UniPack29
DNLC78
...cache hits50
...hit rate50
...setting86
drive
...data layout67
...load balancing86
...number supported26
drive channel26
dropped packets87
dropping packets
...bridges and routers33
E
echo packets
...round trip time34
Ethernet60
...packets, displaying information91
Excelan Lanalyzer91
exporting file systems
...determining37
F
FastEthernet81
FDDI60, 81
file system
...heavy usage62
...paging from disk70
...replication guidelines63
file systems, mounted
...determining37
...displaying statistics54
H
hit rate50, 78
host, number supported26
hot swap26
I
I/O load
...not balanced across disks86
I/O wait time, high86
inode cache, increasing79
interlace size66
interpreting LADDIS results99
iostat42, 43, 86, 90
iostat -x86
J
JumpStart63
K
kernel variables
...modifying using/etc/system76
L
LADDIS
...baseline results (idealized)99, 100
...overview97
...results, interpreting99
LAN analyzers91
load balancing68
ls -lL
...identifying/dev/dskentries41
M
maxusers76
...parameters derived from77
memory bound, determining70
memory configuration70, 71
memory requirements
...calculating71
metadisk38
metastat38
mpstat68
N
ncsize,setting50
NetMetrix91
Netra NFS150 Server system11
netstat91
netstat -i33, 83, 87
netstat -m86
netstat -rs87
netstat -s86
network
...checking32
...collisions, checking withnetstat34
...configuring59
...device monitoring and troubleshooting91
...monitoring tools91
...overloaded87
...problems87
...requirements
............attribute-intensive applications60
............data-intensive applications59
............systems with more thanone class of users61
...subnetting92
...tracing calls91
...tuning59
Network General Sniffer91
NFS
...characteristics1
...load balancing90
...monitoring tools90
...network and performance tools89
...operation throughput97
...performance, increasing with the SPARCstorage
...Array25
...problems
............client52
............displaying server statistics48
...requests1
...server not responding85
...server workload, balancing58
...server, checking37
...statistics, reporting90
...threads in/etc/init.d/nfs.server74
...transactions, showing90
NFS server, dedicated
...Netra NFS 150 Server11
NFS version 32
...64-bit file size2
...asynchronous writes3
...read directory with attributes3
...weak cache consistency4
nfsstat86, 87, 90
nfsstat -c52
nfsstat -m54
nfsstat -rc85
nfsstat -s48, 84
nfswatch90
number of packets and collisions/errors per
network33
O
Online Disk Suite48, 66
...spreading disk access load66
...using log based file systems with67
optimizing data layout on disk drives67
P
packet analysis91
packet size specifications34
packets
...calculating packet error rate34
...dropped87
...dropping bridges and routers34
...echo, round trip time34
...Ethernet, displaying information91
parameters, tuning74
performance monitor
...Ultra Enterprise 3000, 4000, 5000, 6000
...systems15
performance tuning recommendations84
performance-monitoring tools89
ping91
ping -s34, 35
poor response time87
presto51
Prestoserve NFS accelerator
...adding73
...checking its state51
procedures
...checking each client52
...checking the network32
...tuning31, 58
............general performance improvement31
............performance problem resolution32
R
RAID25
RAID level26
RAID Manager26
random I/O capacity61
read directory with attributes
...NFS version 33
read throughput, increasing81
read-aheads, increasing, NFS clients81
read-only data62
redundant26
related booksxiii
replicating
...data62
...file systems62
response time97
...poor87
S
sar43, 90
scan rate70
SCSI controller26
SCSI host26
SCSI-2 bus26
server
...bottlenecks86
...checking37
...statistics, identifying NFS problems48
share37
SharpShooter90
slow disk access times86
slow response86
snoop86, 91
software
...RAID Manager26
Solstice SyMON15
SPARCcenter 2000
...expandability16
...features16
...main memory16
...modules16
...overview15
SPARCcenter 2000E
...expandability16
...features16
...main memory16
...modules16
...overview15
SPARCserver 1000
...features18
...major components18
...overview17
SPARCserver 1000E
...features18
...major components18
...overview17
SPARCserver 20
...configurations22
...features23
...overview22
SPARCstorage Array subsystem
...features24
...using24
SPARCstorage MultiPack
...disk units28
SPARCstorageUniPack
...disk units29
SunNet Manager91
swap space
...configuration71
...requirements, calculating72
symbolic links, eliminating49
system activity, reporting90
system monitor
...Ultra Enterprise 3000, 4000, 5000 and 6000
...systems15
T
troubleshooting83
tuning88
.../etc/system74
...CPUs68
...cycle4
...disk drives61
...memory70
...network59
...NFS performance improvement57
...NFS threads in /etc/init.d/
...nfs.server74
...parameters74
...performance problem resolution88
...procedures31, 32, 58
............general performance improvement31
............performance problem resolution32
...recommendations for NFS performance57
...variables, identifying75
typographic conventionsxiv
U
ufs_ninode80
Ultra Enterprise 1 system21
Ultra Enterprise 2 system21
Ultra Enterprise 4000 server system13
Ultra Enterprise 5000 server sysem13
Ultra Enterprise 600 server system13
update schedules63
V
vfstab64
virtual memory statistics, reporting90
vmstat70, 90
vmstat -s50, 78, 86
W
weak cache consistency, NFS version 34
whatdevscript40
Z
zone-bit recording67