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> > Which 68 pin cable are you talking about? LVD or just plain old >68pin
>Ultra Wide Single Ended?
>
>i've got no idea regarding this. but what i found from adaptec website..,
>the above scsi card that i'm using currently are Ultra Wide SCSI.
>So 'agak-agak'.., i'm using the 68pin Ultra Wide Single Ended..?
>
Ok, what brand and model is your harddrive? With that, I could probably find
out if it's SE or LVD.
>Do i have to use the external termination (active)..? Coz from what > i
>'agak-agak'.., i'm now using the passive termination cable. But > i'm in
>doubt for the both termination type. What's make my server performance
>better if i'm using the active termination instead the passive one..? Could
>u please give me the rough idea about it. > thanks.
Ok. If your cable has a fixed non removable terminator, it's "usually"
active termination. However, if it isn't you're pretty much stuck with it.
If you want to use active termination, you will have to buy a new cable and
buy and active terminator for it. A 5 devices 68pin SE cable with Active
termination costs around US$70 here. Note that I'm talking about good ones,
not some cheap cable from someone's backyard :) As far as I've seen, SE
cables usually don't come with termination on it. You're probably using an
LVD cable. Like I said earlier, LVD comes with active termination unless the
manufacturer cut costs and put passive on it. In this case, the
cable+terminator combo would come to US$100. I'm not sure of the prices in
Malaysia though, check Imbi/Subang Parade/Sunway. I would think Imbi would
have a wider choice since SCSI is basically a luxury back home. Performance
wise, if there's only 1 HDD and the cable is short, passive and active won't
make a difference. If there's heavy traffic (database/HDD seek) then passive
tend to cause more errors, but SCSI is designed to work around the errors
(with lower speeds). I'm thinking you should be pretty safe. Is there away
you could provide me with the model number of the controller chip on your
controller? It should either AIC-xxxx or AHA-xxxx. Thanks.
> >
> >
> > >From: "ifad" <[EMAIL PROTECTED]>
> > >Reply-To: "Penguin @ My-Linux" <[EMAIL PROTECTED]>
> > >To: "Abdul Rahman Johari" <[EMAIL PROTECTED]>, "raden
>keontjoro
> > >hadiningrat" <[EMAIL PROTECTED]>, "Penguin @ My-Linux"
> > ><[EMAIL PROTECTED]>
> > >Subject: [Penguin] AHA-2940UW PRO
> > >Date: Wed, 2 Feb 2000 14:37:33 +0800
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> > >| SAVE BANDWITH, SPACE, TIME & MONEY, REPLY WITH PRUDENCE.|
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> > >o----=[ Penguin @ My - Linux ([EMAIL PROTECTED]) ]=----o
> > >
> > >
> > >HeHe..,
> > >Nampak gayanya.., prob aku dah selesai.
> > >Pasal itu h/d baru dari seagate.., dia dah tak pakai itu internal
> > >termination. Jadi terpaksalah aku meng "terminate" sundri-sundri itu
>cable
> > >scsi h/d.
> > >Tapi masalahnya sekarang.., itu termination cable yang aku pakai
>sekarang
> > >nie.., samada active atau passive. Ada ker yang passive dan yang active
>utk
> > >scsi cable 68-pin tu..?
> > >
> > >Walaumacammanasekalipun.., jasa baik kalian yang telah memberi sedikit
> > >sebanyak idea pada aku nie.., aku ucapkan terima kasih.
> > >
> > >-- Selamat Hari Raya
> > >-
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