Administrator Guide

Default Snapshot Profiles
By default, Storage Center provides two standard snapshot profiles that cannot be deleted.
● Daily – Creates a snapshot every day at 12:01 AM, and expires the snapshot in one week.
● Sample – Applies three schedule rules:
○ Creates a snapshot every 12 hours between 12:05 AM and 6 PM, expiring in five days.
○ Creates a snapshot on the first day of every month at 11:30 PM, expiring in 26 weeks.
○ Creates a snapshot every Saturday at 11:30 PM, expiring in 5 weeks.
Consistent and Non-Consistent Snapshot Profiles
When a snapshot is taken for a volume, I/O is halted to allow the operation to take place. A consistent snapshot profile halts I/O
to all associated volumes until a snapshot is taken for each volume, ensuring that the snapshots contain data for the same time
period. A non-consistent snapshot profile creates snapshots for associated volumes without guaranteeing that the snapshots
will finish at the same time, which is less resource intensive.
Consistent Snapshot Profile Non-Consistent Snapshot Profile
Halts I/O across all volumes as a group Halts I/O for each volume independently of other volumes.
Resource intensive Less resource intensive — depends on the amount of data
written since the previous snapshot
Number of volumes limited based on storage controller.
● SC8000, SC9000, SC7020, and SC7020F: 100
● SC5020 and SC5020F: 50
● SC4020: 40
● SCv2000 and SCv3000 series: 25
No limit to the number of volumes to which the snapshot
profile is attached
Snapshots are taken of all volumes simultaneously Choose between standard (one volume at a time) or parallel
(all volumes simultaneously)
Can set an alert if snapshots cannot be completed within
a defined time. Snapshots not completed before alert is
generated are not taken. (This suspension can lead to
incomplete groups of snapshots across volumes.)
All snapshots are taken
Can delete incomplete group of snapshots All snapshots are taken
Can be converted to Non-Consistent snapshot profile Can be converted to Consistent snapshot profile
Creating and Applying Snapshot Profiles
To create and expire snapshots automatically, create a snapshot profile and apply it to one or more volumes or servers.
NOTE: For user interface reference information, click Help.
Create a Snapshot Profile
Create a Snapshot Profile to define automated snapshot creation and expiration schedules that can be applied to volumes.
Steps
1. If the Storage Manager Client is connected to a Data Collector, select a Storage Center from the Storage view.
2. Click the Storage tab.
3. In the Storage tab navigation pane, select Snapshot Profiles.
4. In the right pane, click Create Snapshot Profile.
The Create Snapshot Profile dialog box opens.
5. In the Name field, type a name for the snapshot profile.
Storage Center Administration
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