<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Title" content="">
<meta name="Keywords" content="">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Courier New";
panose-1:2 7 3 9 2 2 5 2 4 4;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:Calibri;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0cm;
margin-right:0cm;
margin-bottom:0cm;
margin-left:36.0pt;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:Calibri;}
span.EmailStyle17
{mso-style-type:personal;
font-family:Calibri;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal;
font-family:Calibri;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:Calibri;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:Calibri;
color:windowtext;}
span.msoIns
{mso-style-type:export-only;
mso-style-name:"";
text-decoration:underline;
color:teal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1683244506;
mso-list-type:hybrid;
mso-list-template-ids:992147920 142089902 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-start-at:0;
mso-level-number-format:bullet;
mso-level-text:-;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Calibri;
mso-fareast-font-family:Calibri;
mso-bidi-font-family:"Times New Roman";}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></style>
</head>
<body bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It is a difficult calculation to make for me:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">Shared services like Facilities/Hardware repair/Network…<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">Expectation for new functions since upstream has made them available<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">The user support effort has increased significantly as more users come online<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt">Application cloud-readiness is another factor, are the applications able to handle infrastructure outages.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Would be a very interesting topic for an Ops session at Barcelona and I suspect the larger deployments are aiming to approach O(1) staffing, i.e. no problem to add another X% resources to the cloud with only
a <<X% increase in staff but understanding the best practices and some advice (such as < 1 FTE will be challenging) would be helpful.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Tim<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Kris G. Lindgren" <klindgren@godaddy.com><br>
<b>Date: </b>Thursday 8 September 2016 at 17:52<br>
<b>To: </b>"Van Leeuwen, Robert" <rovanleeuwen@ebay.com>, openstack-operators <openstack-operators@lists.openstack.org><br>
<b>Subject: </b>Re: [Openstack-operators] Openstack team size vs's deployment size<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Times New Roman""><o:p> </o:p></span></p>
</div>
<blockquote style="border:none;border-left:solid #B5C4DF 4.5pt;padding:0cm 0cm 0cm 4.0pt;margin-left:3.75pt;margin-right:0cm" id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE">
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt">I completely agree about the general rule of thumb. I am only looking at the team that specifically supports openstack. For us frontend support for public clouds is handled by another team/org all together.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">So what I am looking at is the people who are in charge of the care/feeding of the openstack system specifically.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Which means: people who do the dev work on openstack, community participation, the integrations work, the capacity monitoring and server additions, the responding to alarms/monitoring around openstack, the
POC of new features. Any automation work specifically around openstack. Any testing specifically done against openstack.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">For us we have both private and public clouds in 4 different regions.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We try to maintain either N or N-1 release cadence.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We build our own packages.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We have lots of existing legacy systems that we need to integrate with.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We have a number of local patches that we carry (the majority around cellsv1).</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">So given that would you be willing to share your compute node/engineer ratio?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">___________________________________________________________________</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Kris Lindgren</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Senior Linux Systems Engineer</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">GoDaddy</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Van Leeuwen, Robert" <rovanleeuwen@ebay.com><br>
<b>Date: </b>Thursday, September 8, 2016 at 1:33 AM<br>
<b>To: </b>"Kris G. Lindgren" <klindgren@godaddy.com>, OpenStack Operators <openstack-operators@lists.openstack.org><br>
<b>Subject: </b>Re: [Openstack-operators] Openstack team size vs's deployment size</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt">> I was hoping to poll other operators to see what their average team size vs’s deployment size is,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">> as I am trying to use this in an internal company discussion.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">> Right now we are in the order of ~260 Compute servers per Openstack Dev/Engineer. </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">> So trying to see how we compare with other openstack installs, particularly those running with more than a few hundred compute nodes.</span><o:p></o:p></p>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">In my opinion it highly depends on too many things to have general rule of thumb.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Just a few things that I think would impact required team size:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* How many regions you have: setting up and managing a region usually takes more time then adding computes to an existing region</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* How often do you want/need to upgrade</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* Are you offering more then “core IAAS services” e.g. designate/trove/…</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* What supporting things do you need around your cloud and who manage e.g. networking, setting up dns / repositories / authentication systems etc</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* What kind of SDN are you using/ how it needs to be integrated existing networks</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* What kind of hardware you are rolling and what is the average size of the instances. E.G. hosting 1000 tiny instances on a 768GB / 88 core hypervisor will probably create more support tickets
then 10 large instances on a low-spec hypervisor.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* How you handle storage ceph/san/local?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* Do you need live-migration when doing maintenance or are you allowed to bring down an availability zone</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* Are you building your own packages / Using vendor packages</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">* The level of support the users expect and which team is taking care of that</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">In my private cloud experience rolling compute nodes and the controllers are not the bulk of the work.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">The time goes in all the things that you need around the cloud and customizations that takes time.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">It might be a bit different for public cloud providers where you might deliver as-is and do not need any integrations.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">But you might need other things like very reliable billing and good automation around misbehaving users.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Cheer,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Robert van Leeuwen</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</body>
</html>