NetApp Unified Storage Appliance report - design document
- 1 Create a new Unified Storage Appliance Report - initial requirements
- 2 Requirements narrowed down
- 3 SMI-S agent data collection
- 4 High level description of the report
- 5 Implementation details
- 6 Glossary
Create a new Unified Storage Appliance Report - initial requirements
Requirements narrowed down
SMI-S agent data collection
LUNs masking and mapping
Corellation between Array Profile entities (storage extents, Pools, LUNs) and Self Contained NAS entities(filesystems)
High level description of the report
Gui and Data Server
This document blends together NetApp, SMI-S and Aperi terms and I hope that this glossary will clarify their intended meaning .
aggregate It is the highest level of disks grouping. Lower levels are plexes and RAID groups, which are the basis for an aggregate. A volume is created on an aggregate. An aggregate is described by NetApp SMI-S agent using an instance of CIM_StoragePool and is represented as a storage pool in Aperi.
filer A shorthand for a NetApp storage system
file share A directory or a file that is made available by a filer to clients through NFS or CIFS protocol
hot spare disk It is a disk that has not been added yet to any aggregates and can be used to extend an aggregate, to create a new aggregates or to replace a failed disk in an aggregate. ONTAP replaces automatically a failed disk with one of the hot spare disks.
LUN Logical unit of storage. Storage Volume and LUNs have equivalent meaning.
ONTAP It is the operating system which manages a NetApp storage system.
plex It is an assembly of RAID groups. NetApp defines mirroring at plex level. An aggregate has only one plex when it is unmirrored and two plexes when it is mirrored.
volume It is file system of type WAFL. The LUNs are created on a volume as files but exposed as block storage space. The file shares are also part of a volume.
- NetApp specific.