Administrator Guide

3 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.)

4 Drive Addition is selected by default. Leave this option selected.

5 Click Next.

Fault Tolerance

Set up Fibre Channel, iSCSI and SAS ports with redundant paths for fault tolerance.

1 Select the checkbox of each type of port you want to congure. You must select at least one type to continue.

NOTE: If a port type is grayed out, no ports of that type have been detected.

2 Click Next.

Congure Fibre Channel Ports

Create a Fibre Channel fault domain to group FC ports for failover purposes.

1 On the rst Congure Fibre Channel Fault Tolerance page, select a transport mode: Virtual Port or Legacy.

2 Select the method for creating fault domains:

• Generate Fault Domain Conguration – One of the following fault domains is created, depending on system conguration and

mode selected:

Transport Mode

One Controller Two Controllers

Virtual Port Two controller ports Two controller ports, one on each controller

Legacy One controller port Four controller ports, two on each controller

• Specify Number of Fault Domains – Set the number of fault domains to create.

3 Click Next.

NOTE

: If you selected Generate Fault Domain Conguration, proceed to step

4 If you selected Specify Number of Fault Domains, congure each fault domain.

a In the Name eld, type a name for the fault domain.

b (Optional) In the Notes eld, type notes for the fault domain.

c In the Ports table, select the Fibre Channel ports to add to the fault domain. All FC ports in the fault domain should be

connected to the same FC fabric.

d Click Next. If you are conguring more than one fault domain, repeat these steps for each domain.

5 On the nal Congure Fibre Channel Fault Tolerance page, review the fault domain setup.

6 (Optional) To change the fault domain setup, select from the following options:

• Click Create Fault Domain to create a new fault domain.

• Click Edit Fault Domain to edit the current fault domain.

Storage Center Deployment