NS0-157 · Question #313
The two copies SyncMirror volume are called ____________, which are physical copies of the same file system and consist of one or more RAID groups.
The correct answer is C. Plexes. SyncMirror maintains two physical copies of the file system called plexes, each made up of one or more RAID groups to provide mirrored redundancy.
Question
The two copies SyncMirror volume are called ____________, which are physical copies of the same file system and consist of one or more RAID groups.
Options
- ASnapshot copies
- BAggregates
- CPlexes
- DVolumes
How the community answered
(33 responses)- A3% (1)
- C94% (31)
- D3% (1)
Why each option
SyncMirror maintains two physical copies of the file system called plexes, each made up of one or more RAID groups to provide mirrored redundancy.
Snapshot copies are read-only, point-in-time images of a volume's active file system, not the mirrored physical copies maintained by SyncMirror.
Aggregates are logical storage containers composed of disks that hold volumes, not the individual mirrored copies within a SyncMirror relationship.
In SyncMirror, a plex is one of the two physical copies of the file system data. Each plex resides on a separate set of disks and consists of one or more RAID groups, allowing the mirror to survive a complete disk shelf or loop failure.
Volumes are logical file system containers allocated from an aggregate, not the mirrored physical copies that SyncMirror creates.
Concept tested: SyncMirror plex architecture and RAID mirroring
Source: https://docs.netapp.com/us-en/ontap/concepts/mirroring-data-to-remote-site-disaster-recovery-concept.html
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