Administrator Guide

The Create SAS Fault Domain dialog box opens.
4. In the Name field, type a name for the fault domain.
5. In the Ports table, select the SAS ports to add to the fault domain.
When pairing SAS ports into the fault domain:
• Use one port from each controller.
• Make sure the paired ports have the same port number and are connected to the same server.
6. Click OK.
Delete a SAS Fault Domain
Delete a SAS fault domain if it is no longer needed.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of Unisphere
Central.
2. From the
SYSTEM menu, click Ports.
The Ports view is displayed.
3. Click the Front End Ports tab.
4. Expand SAS and right-click the fault domain, then select Delete.
The Delete SAS Fault Domain dialog box opens.
5. Click OK.
Managing Disks and Disk Folders
Manage disks by adding new disks and organizing disks in disk folders.
Add disks and enclosures to accommodate greater data needs. The supported number of enclosures attached to Storage Center depends
on the controller and enclosure being used.
When adding disks be aware of the following.
• After disks are added, additional space may not be immediately available. Make sure to allow enough time for Unisphere to allocate
space for writes.
• Create a new disk folder only to address specific application program requirements. Creating a second disk folder may cause storage
to be used inefficiently.
• Data cannot be written to unassigned disks.
• The Assigned disk folder was created during initial configuration of the Storage Center. Managing unassigned disks means moving the
disk to a managed disk folder.
• When Unisphere detects self-encrypting drives (SEDs) that are Federal Information Processing Standard (FIPS) 140-2 certified, it
formats the drives for Secure Data use.
• If Self-Encrypting Drives is licensed, disks will be managed in a Secure Data folder.
• If Self-Encrypting Drives is not licensed, disks will be treated as unsecured drives, but may be upgraded to Secure Data status if a
license is purchased in the future.
Storage Center Disk Management
For SC7020, SC5020, and SCv3000 storage systems, Storage Center manages disks automatically. When configuring a storage system,
Storage Center manages the disks into folders based on function of the disk. FIPS-certified Self-Encrypting Drives (SEDs) are managed
into a separate folder than other disks. When Storage Center detects new disks, it manages the disk into the appropriate folder.
In Storage Center version 7.3 and later, the Automatic Drive Placement function can be turned on or off for all storage systems (except
SCv2000 series) using the Storage Center Storage settings.
Disk Management on SCv2000 Series Storage Systems
SCv2000 series storage systems manage disks automatically, limiting the disk management options. After adding disks, Storage Center
recognizes the new disks, creates a new disk folder if necessary, then manages the disks in the disk folder. If a disk is intentionally down
for testing purposes, then is deleted, you can restore the disk to manage the disk again in a disk folder.
Storage Center Maintenance
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