NetApp Snapshot Summary
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NetApp snapshots use pointers to reference the blocks where the data is stored, thereby using a minimal amount of capacity. A snapshot captures a point-in-time image of the file system data. When the next snapshot is taken, the pointers will reference other blocks, as the file system data blocks have changed in the interval between snapshots. Therefore, the access time provides the time reference for the snapshot block usage. Snapshots provide a read-only source of data for backups to tape.
Table: NetApp Snapshot Summary
Column name | Description |
|---|---|
|
Name |
Name of the snapshot schedule. |
|
Storage Array |
Links to the LUN Utilization Summary for NetApp 7-Mode. |
|
Volume |
Links to the NetApp Volume Details. See NetApp Volume Details . |
|
Access Time |
Time the snapshot was created. This value does not change when the snapshot is accessed. |
|
Total Blocks |
Number of 1024-byte blocks in this snapshot |
|
Cumulative Blocks |
Number of 1024-byte blocks--cumulative for current and previous snapshots |
|
Dependency |
Lists the applications that depend on this snapshot: snapmirror, snapvault, dump, vclone, LUNs, or snaplock |
|
Busy |
Indicates if an application is using the snapshot |
|
Cumulative % of Used Blocks |
The % of blocks used by this snapshot and all recent snapshots |
|
Used Blocks |
Of all the blocks used on the volume, this is the % used by the snapshot |
|
Cumulative % of Total Blocks |
The % of blocks owned by this snapshot and all recent snapshots |
|
% of Total Blocks |
The % of all the volume's blocks that is owned by this snapshot |