<div dir="ltr">I know that there is a monitoring process which monitors each Storage Domain, so I guess that if you will have multiple storage domains this will make the monitor runs every time multiple times, but I think that the affect is insignificant on the Host or the Storage Domain.<div><br></div><div>You should also consider the limitation of logical volumes in a volume group, </div><div>IINM LVM has a default limit of 255 volumes (I'm not sure how it behaves regarding efficiency if you use more volumes)</div><div>oVirt uses LV also for snapshots so with one storage domain you might get to this limit pretty quick</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 23, 2017 at 4:35 PM, Grundmann, Christian <span dir="ltr"><<a href="mailto:Christian.Grundmann@fabasoft.com" target="_blank">Christian.Grundmann@fabasoft.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Hi,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">thx for you input<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">both aren’t problems for me, all domains are from the same storage and so can’t be maintained independently.
<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Are there performance problems with only one Domain (like waiting for locks etc.) which I don’t have that much with multiple?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thx Christian<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Von:</span></b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Maor Lipchuk [mailto:<a href="mailto:mlipchuk@redhat.com" target="_blank">mlipchuk@redhat.com</a>]
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<b>Gesendet:</b> Montag, 23. Jänner 2017 15:32<br>
<b>An:</b> Grundmann, Christian <<a href="mailto:Christian.Grundmann@fabasoft.com" target="_blank">Christian.Grundmann@fabasoft.<wbr>com</a>><br>
<b>Cc:</b> <a href="mailto:users@ovirt.org" target="_blank">users@ovirt.org</a><br>
<b>Betreff:</b> Re: [ovirt-users] Storage Domain sizing<u></u><u></u></span></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">There are many factors that can be discussed on this issue,<u></u><u></u></p>
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<p class="MsoNormal">two things that pop up on my mind are that many storage domains will make your Data Center be more robust and flexible, since you can maintain part of the storage domains which could help with upgrading your storage server in the future
or fixing issues that might occur in your storage, without moving your Data Center to a non operational state.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">One storage domain is preferrable if you want to use large disks with your VMs that small storage domains does not have the capacity to do so<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Regards,<u></u><u></u></p>
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<p class="MsoNormal">Maor<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Mon, Jan 23, 2017 at 9:52 AM, Grundmann, Christian <<a href="mailto:Christian.Grundmann@fabasoft.com" target="_blank">Christian.Grundmann@fabasoft.<wbr>com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span lang="EN-US">Hi,</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Ii am about to migrate to a new storage.</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Whats the best practice in sizing?
</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">1 big Storage Domain or multiple smaller ones?</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">My current Setup:</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">11 Hosts</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">7 FC Storage Domains 1 TB each</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Can anyone tell me the pro and cons of 1 vs. many?</span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">Thx Christian</span><u></u><u></u></p>
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