<div dir="ltr">Hi Jeremie, thanks for the info.<div><br></div><div class="gmail_extra">What RAID config do you have on the SASes?</div><div class="gmail_extra"><br></div><div class="gmail_extra" style>Would probably take your advice on the drives. Considering it's on a VM on a cloud provider...</div>
<div class="gmail_extra" style><br></div><div class="gmail_extra" style>Anything else like CPU / RAM which I need to be concerned with?</div><div class="gmail_extra"><br></div><div class="gmail_extra">Thanks<br><br><div class="gmail_quote">
On Tue, May 28, 2013 at 10:32 AM, Jeremie Chism <span dir="ltr"><<a href="mailto:jchism2@gmail.com" target="_blank">jchism2@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I/O wait kills sipwise. Just speaking from experience. If you have dial traffic and you are using sata drives or slow drives its just a matter if time before it breaks. We aren't using a dialer and we use sas 15K drives only b<br>
<br>
Sent from my iPhone<br>
<div class="HOEnZb"><div class="h5"><br>
On May 27, 2013, at 8:31 AM, Andrew Pogrebennyk <<a href="mailto:apogrebennyk@sipwise.com">apogrebennyk@sipwise.com</a>> wrote:<br>
<br>
> On 05/27/2013 03:28 PM, Martin Wong wrote:<br>
>> Nothing in the mysqld.err that stands out. After a reboot, the issue<br>
>> goes away.<br>
>><br>
>> Not sure why.<br>
>><br>
>> There's dialer traffic which makes lots of calls which probably is the<br>
>> cause. Not to say that the server load is very high... the CPU is quite low.<br>
>><br>
>> Do you think it's because it's a virtual machine?<br>
><br>
> That could be possible, but can't say for sure without knowing the<br>
> underlying hardware. What kind of HDD/RAID does that machine have?<br>
> Do you see high %wa percentage (IO wait) in 'top'? What is the disk<br>
> utilization reported in 'iostat -dx1' when that customer is dialing?<br>
><br>
> HTH.<br>
> Andrew<br>
><br>
><br>
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