<div dir="ltr"><div class="gmail_default" style="font-family:monospace,monospace"><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Feb 1, 2016 at 6:49 PM, Dilip Sunkum Manjunath <span dir="ltr"><<a href="mailto:Dilip.SunkumManjunath@toshiba-tsip.com" target="_blank">Dilip.SunkumManjunath@toshiba-tsip.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">Hi all,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="text-indent:.5in"><b><span style="font-size:12.0pt">Use Case :
<u></u><u></u></span></b></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><b>Step 1<u></u><u></u></b></p>
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<u></u><span style="font-family:Wingdings"><span>§<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u>I have multiple backend pools,<u></u><u></u></p>
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<u></u><span style="font-family:Wingdings"><span>§<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u>Updated the get_volume_stats() method to hold the pools information returned from storage API’s<u></u><u></u></p>
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<p class="MsoNormal">Sample log : <u></u><u></u></p>
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<p class="MsoNormal"><i>[{'pool_name': '0', 'total_capacity_gb': 838, 'QoS_support': False, 'thick_provisioning_support': True, 'reserved_percentage': 1, 'consistencygroup_support': False, 'thin_provisioning_support': True, 'free_capacity_gb': 83.79999999999995},
{'pool_name': '1', 'total_capacity_gb': 1126, 'QoS_support': False, 'thick_provisioning_support': True, 'reserved_percentage': 1, 'consistencygroup_support': False, 'thin_provisioning_support': True, 'free_capacity_gb': 67.56000000000017}]<u></u><u></u></i></p>
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<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><b>Step 2<u></u><u></u></b></p>
<p class="MsoNormal"> <u></u><u></u></p>
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<u></u><span style="font-family:Symbol"><span>·<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u>In Create volume method am reading the pool information as storage api need pool info(on which pool in need to create)<u></u><u></u></p>
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<u></u><span style="font-family:Symbol"><span>·<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u>Like pool_id = volume_utils.extract_host(volume['host'], level='pool') by making use of below import<u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in"><u></u> <u></u></p>
<p style="margin-left:1.5in">from cinder.volume import utils as volume_utils<u></u><u></u></p>
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<p class="MsoNormal" style="text-indent:.5in"><b>Problem am facing is:<u></u><u></u></b></p>
<p class="MsoNormal" style="text-indent:.5in"><b><u></u> <u></u></b></p>
<p class="MsoNormal"> The scheduler is not always picking the free pool which has space, it returns the pool which don’t have space.<u></u><u></u></p>
<p class="MsoNormal"> I came to know when I printed the volume['host'] and above pool id.<u></u><u></u></p>
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<p class="MsoNormal">Is there anything else I must do? Please suggest.<u></u><u></u></p>
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<p class="MsoNormal">Thanks<u></u><u></u></p>
<p class="MsoNormal">Dilip<u></u><u></u></p>
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<br></blockquote></div><div class="gmail_default" style="font-family:monospace,monospace">Sounds like this is in reference to a new driver that you're working on? Any chance you can share a link to either a patch in gerrit or the code on Github?</div><div class="gmail_default" style="font-family:monospace,monospace"><br></div><div class="gmail_default" style="font-family:monospace,monospace">John</div><br></div></div>