openstack/manila
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Update ZFSonLinux share driver docs

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Fix some information about ZFSonLinux share driver to make it
up-to-date with Mitaka version.

TrivialFix

Change-Id: I286ad6e603f1fd0afa069178f0a603174a988544
This commit is contained in:
vponomaryov 2016-03-21 13:25:33 +02:00
parent 07c7e67a89
commit 560f13d4d8
1 changed files with 6 additions and 6 deletions
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12
doc/source/devref/zfs_on_linux_driver.rst
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@ -31,8 +31,7 @@ Requirements
installed. installed.
* For ZFS hosts that support replication: * For ZFS hosts that support replication:
* SSH access for each other should be passwordless. * SSH access for each other should be passwordless.
* IP used for share exports should be available by ZFS hosts for each other. * Service IP addresses should be available by ZFS hosts for each other.
* Username should be the same for accessing each of ZFS hosts.
Supported Operations Supported Operations
-------------------- --------------------
@ -65,6 +64,10 @@ Possibilities
So, status 'in_sync' means latest sync was successful. So, status 'in_sync' means latest sync was successful.
Time range between syncs equals to value of Time range between syncs equals to value of
config global opt 'replica_state_update_interval'. config global opt 'replica_state_update_interval'.
* Driver is able to use qualified extra spec 'zfsonlinux:compression'.
It can contain any value that is supported by used ZFS app.
But if it is disabled via config option with value 'compression=off',
then it will not be used.
Restrictions Restrictions
------------ ------------
@ -78,14 +81,11 @@ The ZFSonLinux share driver has the following restrictions:
one active replica available. one active replica available.
* 'Manage share' operation is not yet implemented. * 'Manage share' operation is not yet implemented.
* 'SaMBa' based sharing is not yet implemented. * 'SaMBa' based sharing is not yet implemented.
* 'Thick provisioning' is not yet implemented.
Known problems Known problems
-------------- --------------
* Better to avoid usage of Neutron on the same node where ZFS is installed.
It leads to bug - https://bugs.launchpad.net/neutron/+bug/1546723
The ZFSonLinux share driver has workaround for it and requires 'nsenter' be
installed on the system where ZFS is installed.
* 'Promote share replica' operation will make ZFS filesystem that became * 'Promote share replica' operation will make ZFS filesystem that became
secondary as RO only on NFS level. On ZFS level system will secondary as RO only on NFS level. On ZFS level system will
stay mounted as was - RW. stay mounted as was - RW.