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SMCC NFS Server Performance and Tuning Guide

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Anterior: A Using NFS Performance-Monitoring and Benchmarking Tools

Index

Symbols


`/dev/dsk`entries
.....determining for exported filesystems	41
`/etc/init.d/nfs.server`
.....tuning	77
`/etc/system`	78
`/etc/system`
.....tuning	77

Numerics


100 Mbit Ethernet	85
64 bit file size
.....NFS Version 3	3

A


asynchronous writes
.....NFS Version 3	3
ATM	61

B


`badxid`	89
books, related	xv
bottlenecks, pinpointing	94
bridges and routers dropping packets	34
buffer cache
.....adjusting
............`bufhwm`	80
.....increasing	50
buffer sizes
.....identifying	78
`bufhwm`	80

C


cache file system
.....adding	66
cache hit rate	52, 82, 90
cache size
.....adjusting
............maxusers	79
checking
.....client	54
.....network	32
.....NFS server	36, 37
client
.....bottlenecks	89
.....checking	54
.....NFS problems	55
configuration recommendations
.....NFS performance	59
configuring
.....`/etc/init.d/nfs.server`	77


.....`/etc/system`	77
.....CPUs	69
.....disk drives	63
.....memory	71
CPU idle time	90
CPU utilization
.....determining	69
CPUs
.....configuring	69
.....in NFS servers
............guidelines	70
`cron`	66
`crontab`	49

D


data, collecting
.....long term basis	49
dedicated NFS server
.....Netra nfs150 Server	21
Desktop Disk Pack
.....disk units	29
Desktop Storage Module
.....disk units	28
`df -k`	38
Directory Name Lookup Cache(DNLC)	82
disk
.....access load
............spreading	67
.....activity, reporting	94
.....array
............utilizing	24
.....concatenation	67
.....configuration	69
.....constraints, easing of	64
.....load
............spreading the load out	49
.....mirroring	68
.....statistics
............determining for each disk	44
.....striping	67
.....utilization	63
disk drive
......configuration rules	66
......configuring	63
......data layout	69
......load balancing	90
disk names into disk numbers
......translating	45
disk units
......Desktop Disk Pack	29
......Desktop Storage Module	28
......Multi-Disk Pack	28
......SPARCstorage MultiPack	27
......SPARCstorage UniPack	29
DNLC	82
......cache hits	52
......hit rate	52
......setting	90
drive
......data layout	69
......load balancing	90
dropped packets	91
dropping packets
......bridges and routers	33

E


echo packets
......round trip time	35
Ethernet	62
......packets, displaying information	95
Excelan Lanalyzer	95
exporting file systems
......determining	38

F


FastEthernet	85
FDDI	61, 85
file system
......heavy usage	65
......paging from disk	71
......replication guidelines	65
file systems
......mounted
............determining	38


............displaying statistics	57

H


hit rate	52, 82

I


I/O load
.....not balanced across disks	90
I/O wait time
.....high	90
inode cache
.....increasing	83
interlace size	67
interpreting LADDIS results	103
`iostat`	44, 45, 90, 94
`iostat -x`	90

J


JumpStart	66

K


kernel variables
.....modifying using`/etc/system`	78

L


LADDIS
.....baseline results (idealized)	103, 104
.....overview	101
.....results, interpreting	103
LAN analyzers	95
load balancing	69
`ls -lL`
.....identifying`/dev/dsk`entries	42

M


`maxusers`	79
.....parameters derived from	80
memory bound
.....determining	71
memory configuration	71, 73
memory requirements
......calculating	72
metadisk	39
`metastat`	39
`mpstat`	69
Multi-Disk Pack
......disk units	28

N


`ncsize,`setting	53
NetMetrix	95
Netra nfs150 Server system	21
`netstat`	95
`netstat -i`	33, 87, 91
`netstat -m`	90
`netstat -rs`	91
`netstat -s`	90
network
......checking	32
......collisions, checking with netstat	34
......configuring	61
......device monitoring andtroubleshooting	95
......monitoring tools	95
......overloaded	91
......problems	91
......requirements
............attribute-intensiveapplications	62
............data-intensive applications	61
............systems with more than one classof users	63
......subnetting	96
......tracing calls	96
......tuning	61
Network General Sniffer	95
network-related bottlenecks	91
network-related data structures,displaying contents	95
NFS
......characteristics	1


.....load, balancing	94
.....monitoring tools	94
.....network and performance tools	93
.....operation throughput	101
.....operations	54
.....performance
............increasing by using theSPARCstorage Array	26
.....problems
............client	55
............displaying server statistics	50
.....requests	1
.....server
............checking	36
...................steps	37
.....server not responding	89
.....server workload
............balancing	60
.....statistics, reporting	94
.....threadsin`/etc/init.d/nfs.server`	77
.....transactions, showing	94
NFS server
.....dedicated
............Netra nfs150 Server	21
NFS Version 3	2
.....64 bit file size	3
.....asynchronous writes	3
.....read directory with attributes	3
.....weak cache consistency	4
`nfsstat`	90, 91, 94
`nfsstat -c`	55
`nfsstat -m`	57
`nfsstat -rc`	89
`nfsstat -s`	50, 87
`nfswatch`	94
number of packets and collisions/errorsper network	33

O


Online Disk Suite	49, 67, 68
.....spreading disk access load	67
......using log based file systems with	68
optimizing data layout on disk drives	68

P


packet analysis	95
packet size specifications	34
packets
......calculating packet error rate	34
......dropped	91
......dropping bridges and routers	34
......echo
............round trip time	35
......Ethernet
............displaying information	95
parameters
......tuning	77
performance monitor
......Ultra Enterprise 3000, 4000, 5000, 6000systems	20
performance tuningrecommendations	88
performance-monitoring tools	93
`ping`	95
`ping -s`	35
poor response time	91
`presto`	53
Prestoserve NFS accelerator
......adding	75
......checking its state	53

R


RAID	26
random I/O capacity	63
read directory with attributes
......NFS Version 3	3
read throughput
......increasing	85
read-aheads
......increasing
............NFS clients	85
read-only data	65


related books	xv
replicating
.....data	65
.....file systems	65
response time	101
.....poor	91

S


`sar`	45, 94
scan rate	71
server
.....bottlenecks	90
.....checking	36
.....statistics
............identifying NFS problems	50
`share`	38
SharpShooter	94
slow disk access times	90
slow response	90
`snoop`	90, 95, 96
Solstice SyMON	20
SPARCcenter 2000
.....expandability	17
.....features	18
.....input/output	17
.....main memory	17
.....modules	17
.....overview	17
SPARCcenter 2000E
.....expandability	17
.....features	18
.....input/output	17
.....main memory	17
.....modules	17
.....overview	17
SPARCserver 10
.....configurations	10
.....features	10
.....overview	10
SPARCserver 1000
.....features	16
.....major components	16
.....overview	14
SPARCserver 1000E
......features	16
......major components	16
......overview	14
SPARCserver 20
......configurations	11
......features	12
......overview	11
SPARCserver 5
......features	9
......overview	9
SPARCserver 5 to SPARCserver 20upgrade	9
SPARCstorage Array subsystem
......features	24
......utilizing	24
SPARCstorage MultiPack
......disk units	27
SPARCstorageUniPack
......disk units	29
steps
......checking each client	54
......checking the network	32
......checking the server	37
......tuning	31, 60
............general performanceimprovement	31
............performance problemresolution	32
SunNet Manager	95
swap space
......configuration	72
......requirements
............calculating	74
symbolic links
......eliminating	52
system activity, reporting	94
system monitor
......Ultra Enterprise 3000, 4000, 5000 and6000 systems	20

T


troubleshooting actions	87


tuning	91
.....`/etc/system`	77
.....CPUs	69
.....cycle	4
.....disk drives	63
.....memory	71
.....network	61
.....NFS performance improvement	59
.....NFS threads in`/etc/init.d/nfs.server`	77
.....parameters	77
.....performance problem resolution	91
.....recommendations
............NFS performance	59
.....steps	31, 32, 60
............general performanceimprovement	31
............performance problemresolution	32
.....variables
............identifying	78
typographic changes and symbols	xvi

U


`ufs_ninode`	84
Ultra Enterprise 2 system	13
Ultra Enterprise 4000 server system	19
Ultra Enterprise 5000 server sysem	19
Ultra Enterprise 600 server system	19
Ultra Entrerprise 1 system	13
update schedules	66
upgrade
.....SPARCserver 5 to SPARCserver 20	9
utilization
.....disk	63

V


`vfstab`	66
virtual memory statistics, reporting	94
`vmstat`	71, 94
`vmstat -s`	52, 82, 90

W


weak cache consistency
......NFS Version 3	4
`whatdev`script	41

Z


zone bit recording	69

Anterior: A Using NFS Performance-Monitoring and Benchmarking Tools