Specifications

15
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TCP/IPKeepAliveTimeReduction
ReducethissettingonallEEPCserversfromtwohours(thedefault)tofiveminutes.Theserverwillrequirea
restart.Oncethisisdone,ifanendpointclientlosestheconnectionwiththeserver,theserverwillreleasethe
lockafterapproximately5minutes.Thiswillalsopreventbrokenremotesbadmclcon
nectionsfromlocking
thescriptinguseraccountfor2hours.

Procedure
1. OpenRegedit
2. Goto:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters
3. OpenorcreatetheDwordKeepAliveTime
4. Changethevalueto300000indecimals(Timeinmilliseconds)
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Extrainfo
TheKeepAliveTimesettingcontrolshowoftenkeep‐alivepacketsaresentinmilliseconds(30
0,000is
recommended).ItcontrolshowoftenTCPsendsakeep‐alivepackettoverifythatanidleconnectionisstill
intact.Iftheremotecomputerisstillreachable,itacknowledgesthekeep‐alivepacket.
MSKBarticle:http://support.microsoft.com
/default.aspx?scid=kb;en‐us;324270#EQACAAA


Key:Tcpip\Parameters
ValueType:REG_DWORD(Timeinmilliseconds)
ValidRange:1‐0xFFFFFFFF
Default:7,200,000(twohours)
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NOTE:AsimilarsettingKeepAliveIntervalhasadefault1000(=1second),thissettingiscorrectsodonot
changethis.
LastAccessTimeStamp(NtfsDisableLastAccessUpdate)
Withlargedatabases,itispossiblethatsomegroupsmaybecomeoverpopulated.Whenalargegroupis
opened(forexampleonewithover5000users),itcantakesometimetoopen.Toreduceharddiskreadand
writetime,aregistrysettingcanbesettopreventtheLastAccesstimest
ampfrombeingupdatedoneveryfile
access.Theperformanceboostwillbeabout50%!Arestartisneededafterthechange.

Procedure
1. Openregedit.
2. GotoHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem.
3. CreateanewDWORDvalue,ormodifytheexistingvalue,named"NtfsDisableLastAccessUpdate"and
setitto"1".
Microsoftarticle:http://technet2.microsoft.com/Wind
owsServer/en/library/80dc5066‐7f13‐4ac3‐8da8‐
48ebd60b44471033.mspx?mfr=true
WindowsServerasaFileServer
TuneMicrosoftWindows2003servertobeafileserver.
SeetheMicrosoftarticlehttp://support.microsoft.com/kb/174619
aboutthis.
Theory
IncreaseNTFSMFT(MasterFileTable,usedtobeFAT)to50%ofthediskspace.Theresultisthatsmallfiles
arebeingstoredintheMFTandnotasseparatefilesintheNTFS.Thishelpsalotbecausewehavethousands
ofsmallfiles.
Procedure