Administrator Guide

Create a Storage Type
Creating a Storage Type sets the redundancy level for each tier and assigns the Storage Type to a disk folder.
Prerequisite
SCv2000 does not support creating new Storage Types.
About this task
NOTE: Do not assign multiple Storage Types to one disk folder. Data Progression may not perform as intended with multiple
Storage Types assigned to one disk folder.
Steps
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2
From the STORAGE menu, select Storage Types.
The Storage Types view is displayed.
3 Click (New).
The New Storage Type dialog box opens.
4 Select a disk folder from the Disk Folder drop-down menu.
5 Select a redundancy type.
• Redundant: Protects against the loss of any one drive (if single redundant) or any two drives (if dual redundant).
• Non-Redundant: Uses RAID 0 in all classes, in all tiers. Data is striped but provides no redundancy. If one drive fails, all data is lost.
NOTE
: Non-Redundant is not recommended because data is not protected against a drive failure. Do not use non-
redundant storage for a volume unless the data has been backed up elsewhere.
6 For Redundant Storage Types, you must select a redundancy level for each tier unless the drive type or size requires a specic
redundancy level
• Single Redundant: Single-redundant tiers can contain any of the following types of RAID storage:
– RAID 10 (each drive is mirrored)
– RAID 5-5 (striped across 5 drives)
– RAID 5-9 (striped across 9 drives)
• Dual redundant: Dual redundant is the recommended redundancy level for all tiers. It is enforced for 3 TB HDDs and higher and for
18 TB SSDs and higher. Dual-redundant tiers can contain any of the following types of RAID storage:
– RAID 10 Dual-Mirror (data is written simultaneously to three separate drives)
– RAID 6-6 (4 data segments, 2 parity segments for each stripe)
– RAID 6-10 (8 data segments, 2 parity segments for each stripe.)
7 Select a Page Size:
• Standard (2 MB Datapage Size): Default datapage size, this selection is appropriate for most applications.
• High Performance (512 KB Datapage Size): Appropriate for applications with high performance needs, or in environments in
which snapshots are taken frequently under heavy I/O. Selecting this size increases overhead and reduces the maximum available
space in the Storage Type. All-Flash storage systems use 512 KB by default.
• High Density (4 MB Datapage Size): Appropriate for systems that use a large amount of disk space and take snapshots
infrequently.
8 Drive Addition is selected by default. Leave this option selected.
9 Click OK.
164
Storage Center Maintenance