openstack/openstack-manuals
Code Issues Proposed changes

Document over subscription for HP 3PAR drivers

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Add the optional parameters for enabling over subscription in the
3PAR drivers.

Change-Id: I3b3258643d2c9515d3e73d7b611954e8c867d2b6
Closes-Bug: 1485573
This commit is contained in:
Kurt Martin 2015-08-21 10:13:47 -07:00
parent 878d9fd832
commit 62d9d1ea3e
1 changed files with 9 additions and 1 deletions
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10
doc/config-reference/block-storage/drivers/hp-3par-driver.xml
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@ -425,7 +425,15 @@ hp3par_snap_cpg=OpenStackSNAP_CPG
hp3par_snapshot_retention=48
# Time in hours when a snapshot expires and is deleted. This must be larger than retention.
hp3par_snapshot_expiration=72</programlisting>
hp3par_snapshot_expiration=72
# The ratio of oversubscription when thin provisioned volumes are involved.
# Default ratio is 20.0, this means that a provisioned capacity can be 20 times of the total
# physical capacity.
max_over_subscription_ratio=20.0
# This flag represents the percentage of reserved back-end capacity.
reserved_percentage=15</programlisting>
<note>
<para>You can enable only one driver on each
cinder instance unless you enable multiple