NetApp Snapshot Management (Create, List, Reserve, Schedule)

Содержание

What is a NetApp Snapshot ?
NetApp Create Snapshot
Schedule NetApp Snapshot
NetApp Show Snap Reserve Space
NetApp Set Snapshot Reserve Size
NetApp Show Snapshots

What is a NetApp Snapshot ?

A NetApp Snapshot is a “Point in time” data copy using software which uses minimal storage space and does not affect performance.

This Netapp HowTo is useful for the following

NetApp Show Snapshots on volume
NetApp Create Snapshot
Schedule NetApp Snapshot
Show / Set Snapshot space in volume

NetApp Create Snapshot

To create a snapshot called “cifs1-snap” manually enter:

netapp> snap create cifs1 cifs1-snap

We can confirm this snapshot has been created with:

netapp01> snap list cifs1
Volume cifs1
working...

  %/used       %/total  date          name
----------  ----------  ------------  --------
 28% (28%)    0% ( 0%)  May 19 17:09  cifs1-snap
 44% (29%)    0% ( 0%)  May 19 16:00  hourly.0
 54% (29%)    0% ( 0%)  May 19 12:00  hourly.1
 61% (29%)    0% ( 0%)  May 19 08:00  hourly.2
 67% (30%)    0% ( 0%)  May 05 20:00  hourly.3
 72% (35%)    0% ( 0%)  May 05 16:14  hourly.4

Schedule NetApp Snapshot

To schedule a NetApp snapshot enter:

snap sched volname schedule

This command is a little complicated, the following example will create a snapshot backup schedule for the volume “cifs1” for 4 weekly, 7 daily and 10 hourly snapshot backups. The numbers after the @ sign represent the time of the hourly snapshot, so in this example a snapshot would be taken every hour from 0900 to 1800 hours.

Example:

netapp> snap sched cifs1 4 7 10@9,10,11,12,13,14,15,16,17,18

NetApp Show Snap Reserve Space

To show the snapshot reserve space for a volume enter:

netapp> snap reserve cifs1
Volume cifs1: current snapshot reserve is 5% or 25600 k-bytes.

NetApp Set Snapshot Reserve Size

To set the snapshot reserve space to 10% enter:

netapp> snap reserve cifs1 10

You can confirm the snapshot size change using:

netapp> snap reserve cifs1 10
netapp> snap reserve cifs1
Volume cifs1: current snapshot reserve is 10% or 51200 k-bytes.

NetApp Show Snapshots

To show NetApp snapshots enter the following command:

netapp01> snap list
Volume vol0
working...

  %/used       %/total  date          name
----------  ----------  ------------  --------
  2% ( 2%)    0% ( 0%)  May 19 16:00  hourly.0
  6% ( 5%)    1% ( 1%)  May 19 12:00  hourly.1
 10% ( 5%)    2% ( 1%)  May 19 08:00  hourly.2
 20% (12%)    5% ( 3%)  May 05 20:00  hourly.3
 23% ( 5%)    6% ( 1%)  May 05 16:01  hourly.4
 26% ( 5%)    6% ( 1%)  May 05 12:00  hourly.5
 33% (12%)    9% ( 2%)  Apr 30 00:00  nightly.0
 35% ( 4%)   10% ( 1%)  Apr 29 00:00  nightly.1

Volume cifs1
working...

  %/used       %/total  date          name
----------  ----------  ------------  --------
 28% (28%)    0% ( 0%)  May 19 16:00  hourly.0
 44% (29%)    0% ( 0%)  May 19 12:00  hourly.1
 54% (29%)    0% ( 0%)  May 19 08:00  hourly.2
 62% (30%)    0% ( 0%)  May 05 20:00  hourly.3
 68% (35%)    0% ( 0%)  May 05 16:14  hourly.4

The above shows the snapshots for the volume vol1 and cifs1.