A.
Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
B.
Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports only one attach at a time.
C.
Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
D.
Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports only one attach at a time.
Suggested Answer:D🗳️
Only a single snapshot per LUN can be attached at any given time, and must be detached prior to attaching another snapshot of the same LUN.
Answer C: In Dell EMC Unity OE version 4.1 and later, multiple snapshots for a particular Block resource can be attached to one or more hosts at the same time.
Page 12 : https://www.delltechnologies.com/asset/en-ae/products/storage/industry-market/h15089-dell_emc_unity-snapshots_and_thin_clones.pdf
Multiple hosts can be attached to any specific LUN snapshot or multiple snapshots within the tree. When a host is attached to a snapshot for access to its data, the attach can be defined for read-only access or read/write access.
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