openstack/cinder
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Merge "VMAX doc - important known issue"

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Zuul 2018-08-23 20:17:18 +00:00 committed by Gerrit Code Review
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doc/source/configuration/block-storage/drivers/dell-emc-vmax-driver.rst
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@ -12,6 +12,17 @@ storage management software. They use the Requests HTTP library to communicate
with a Unisphere for VMAX instance, using a RESTAPI interface in the backend
to perform VMAX storage operations.
.. note::
KNOWN ISSUE:
Workload support was dropped in ucode 5978. If a VMAX All Flash array is
upgraded to 5978 or greater and existing volume types leveraged workload
e.g. DSS, DSS_REP, OLTP and OLTP_REP, attaching and detaching will no
longer work and the volume type will be unusable. Refrain from upgrading
to ucode 5978 or greater on an All Flash until a fix is merged. Please
contact your Dell EMC VMAX customer support representative if in any
doubt.
System requirements and licensing
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