openstack/openstack-manuals
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Merge "Add Dell Storage Center Cinder extra spec info"

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Jenkins 2015-06-29 13:46:33 +00:00 committed by Gerrit Code Review
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doc/config-reference/block-storage/drivers/dell-storagecenter-driver.xml
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@ -41,6 +41,31 @@
</listitem>
</itemizedlist>
</simplesect>
<simplesect>
<title>Extra spec options</title>
<para>Volume type extra specs can be used to select different Storage
Profiles.</para>
<para>Storage Profiles control how Storage Center manages volume data.
For a given volume, the selected Storage Profile dictates which disk
tier accepts initial writes, as well as how data progression moves data
between tiers to balance performance and cost. Predefined Storage
Profiles are the most effective way to manage data in Storage
Center.</para>
<para>By default, if no Storage Profile is specified in the volume extra
specs, the default Storage Profile for the user account configured for
the Block Storage driver is used. The extra spec key
<literal>storagetype:storageprofile</literal> with the value of the name
of the Storage Profile on the Storage Center can be set to allow to use
Storage Profiles other than the default.</para>
<para>For ease of use from the command line, spaces in Storage Profile
names are ignored. As an example, here is how to define two volume
types using the <literal>High Priority</literal> and <literal>Low
Priority</literal> Storage Profiles:</para>
<screen><prompt>$</prompt> <userinput>cinder type-create "GoldVolumeType"</userinput>
<prompt>$</prompt> <userinput>cinder type-key "GoldVolumeType" set storagetype:storageprofile=highpriority</userinput>
<prompt>$</prompt> <userinput>cinder type-create "BronzeVolumeType"</userinput>
<prompt>$</prompt> <userinput>cinder type-key "BronzeVolumeType" set storagetype:storageprofile=lowpriority</userinput></screen>
</simplesect>
<simplesect>
<title>iSCSI configuration</title>
<para>Use the following instructions to update the configuration