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Date:      Tue, 19 Jun 2007 12:31:10 -0400
From:      Martin Turgeon <turgeon.martin@gmail.com>
To:        Stefan Lambrev <stefan.lambrev@sun-fish.com>
Cc:        freebsd-hackers@freebsd.org, freebsd-hardware@freebsd.org
Subject:   Re: i386 with PAE or AMD64 on PowerEdge with 4G RAM
Message-ID:  <467804CE.1050705@gmail.com>
In-Reply-To: <4677884C.2080604@sun-fish.com>
References:  <4676BAF0.4030703@gmail.com> <4677884C.2080604@sun-fish.com>

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Thank you all for your advices, I will take a try with AMD64.

I'm always impressed by the support on the FreeBSD mailinglist, continue 
your good work.

Martin


Stefan Lambrev a écrit :
> Hi,
>
> Martin Turgeon wrote:
>> Good afternoon,
>>
>> I just receive 2 PowerEdge servers (a 1950 and a 860) both with 4G of 
>> RAM. I installed FreeBSD 6.2 Release i386 on both of them. 
>> Unfortunately, only 3,5G is recognized on the 860 and 3,3G on the 1950.
>> dmesg on 860:
>> real memory = 3757834240 (3583 MB)
>> avail memory = 3678318592 (3507 MB)
>>
>> I am facing a difficult decision. Should I use i386 with PAE enabled 
>> in the kernel (I read a lot of warnings using it) or should I go with 
>> AMD64? Which branch should I follow?
>>
>> These servers will be front-end/back-end MySQL(with replication) and 
>> Apache servers with BIND, Postfix, Dovecot, PF.
> I have NO problems with FreeBSD AMD64, at least not more then I have 
> with i386 versions.
>
> I do not see a problem to run MySQL, apache, BIND,Postfix and PF - as 
> I use them myself for near 2 years under freebsd amd64.
>
> I even can say that at some point amd64 becomes more stable (for me) 
> then i386.
> The major problem (again for me) is that there is no way to connect 
> 64bit apache under freebsd to Oracle DB.
>
> Saying that I'm quite happy using FreBSD amd64 (even for 
> desktop/laptop machines) and knowing how broken is PAE .. just go for 
> amd64.
>
>>
>> There is the detailled configuration of the servers:
>> PowerEdge 1950
>> Xeon 5110
>> 4G RAM
>> PERC 5 Raid controller (mfi)
>> Dual Broadcom 5708 (bce)
>>
>> PowerEdge 860
>> Xeon 3070
>> 4G RAM
>> LSI Logic Raid controller (mpt)
>> Dual Broadcom 5750 (bge)
> If you still consider PAE check very carefully that all your drivers 
> work OK with PAE kernel!
>>
>> Thanks a lot for your advice,
>>
>> Martin
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>



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