Dell Storage Manager 2020 R1 Administrator's 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.

1. If the Dell 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, click Storage Types, then click Create Storage Type.
   The Create 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 specific 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. Drive Addition is selected by default. Leave this option selected.
8. Click OK.