sureshanaparti commented on code in PR #503: URL: https://github.com/apache/cloudstack-documentation/pull/503#discussion_r2086363440
########## source/adminguide/storage.rst: ########## @@ -252,6 +252,38 @@ same set of tags on the primary storage for all clusters in a pod. Even if different devices are used to present those tags, the set of exposed tags can be the same. +Storage Access Groups +~~~~~~~~~~~~~~~~~~~~~ + +When a primary storage is added in CloudStack, either at the Zone or Cluster scope, +it gets connected to all the hosts within that scope. Using Storage Access Groups, +this behavior can be controlled by defining groups on both primary storage and hosts, +ensuring connections are established only within those groups. When a Storage Access +Group is set on a primary storage (a text string attribute similar to tag), +and the same group is assigned to a host, the primary storage will connect only to that host. +A Storage Access Group can also be applied at the Cluster, Pod, or Zone level, allowing +all hosts in that entity to inherit the group automatically. + +For example, if there are 50 hosts across 10 clusters, with 5 hosts per cluster, +and a zone-wide primary storage is added, it will connect to all 50 hosts. If the +operator wants to limit the connection to a few hosts in just the first 2 clusters, +Storage Access Groups can be set on the primary storage and those specific hosts — +or directly on the two clusters to achieve the same effect. + +Adding Storage Access Group on a primary storage. + +|adding-storage-access-group-on-primary-storage.png| + +Adding Storage Access Group on a host. Similarly it can be applied Cluster/Pod/Zone. + +|adding-storage-access-group-on-host.png| + +A primary storage with a Storage Access Group will connect only to hosts that have the +same Storage Access Group. A storage pool without a Storage Access Group will connect to all hosts, +including those with or without any Storage Access Group. + +Note: Storage Access Groups are not applicable for local primary storages. Currently this is tested with NFS +and Dell Powerflex storages. Review Comment: ```suggestion and Dell PowerFlex storages. ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@cloudstack.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
