[asterisk-users] Server Setup Advice

[Elliot Murdock]

Hello!

There will be disk writing in these areas:
1. Logs
2. CDRs
3. MYSQL Call logs
4. Faxes and voicemail

Also, there will be a lot of codec encoding/decoding from/to the PRI
devices, which is my main concern with CPU load.

Cheers,
Elliot

On Sun, Mar 8, 2009 at 7:56 PM, Gordon Henderson
<gordon+asterisk at drogon.net> wrote:
> 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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