[asterisk-users] Server Setup Advice

[Gordon Henderson]

On Sun, 8 Mar 2009, Elliot Murdock wrote:

> Hello!
>
> Oh, yes, I will be mirroring the harddrives in case of any failures.
>
> What is your opinion about using (software) RAID?  Do you think the
> overhead impacts performance too much?
>
> In an ideal situation, I would use hardware RAID, but that is not
> feasible right now.

I've used Linux software RAID for over 10 years now. for me, it's my first 
choice.

You shouldn't be doing many disk writes though - unless you're recording 
all calls or handling a vast amount of voicemail.

And with modern hardware there shouldn't be issues that we had in the bad 
old days - DMA, PIO, etc.

There is a double on resources required to write a block to a software 
RAID-1 (mirror) unit but in a modern system, you're not going to notice 
it.

And FWIW: I regularly have systems with 20-40 extensions running on a 1GHz 
VIA processor, so CPU wise, you've got more than enough - unless you're 
transcoding

Gordon


>
> Thanks,
> Elliot
>
> On Sun, Mar 8, 2009 at 4:26 PM, Jay Milk <ast-users at skimmilk.net> wrote:
>> Elliot Murdock wrote:
>>> Hello Everybody!
>>>
>>> I am currently setting up an Asterisk server for medium to high load
>>> (approximately 20-35 concurrent phone lines).
>>>
>>> Do you think the following specs will sufficiently satisfy this system?
>>>
>>> CPU: XeonQC3220 2.4GHZ 8M
>>> RAM: 2X2GB/800
>>> Harddrive: 1X250GB
>>>
>>> I could add harddrives and partition them into /var and /log
>>> directories to help with diskdrive throughput.
>>>
>>> Thanks!
>>> Elliot
>>>
>>>
>> I'm sure this is common sense, but make sure you have a plan B for when
>> that HD fails.  It will.
>>
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