Note the aggregate allocation ratio restriction in scheduler docs
Note the aggregate allocation ratio restriction in scheduler docs

This borrows from the release note in change
I01f20f275bbd5451ace5c1e6f41ab38d488dae4e to document the
regression, introduced in Ocata, where allocation ratio settings
in the aggregate core/ram/disk filters are not honored because
of placement being used by the FilterScheduler.

While there is related work going on around this in
blueprint initial-allocation-ratios and
blueprint placement-aggregate-allocation-ratios, it is still
a limitation in the current code base and needs to be called
out in the docs.

Change-Id: Ifaf596a8572637f843f47daf5adce394b0365676
Related-Bug: #1804125

mahak/nova,mikalstill/nova,openstack/nova,rahulunair/nova,rahulunair/nova,mikalstill/nova,mikalstill/nova,klmitch/nova,openstack/nova,klmitch/nova,rahulunair/nova,klmitch/nova,klmitch/nova,mahak/nova,openstack/nova,mahak/nova