Dell PowerVault MD3660f - Manual (Page 8)

• Dual path data configuration — A dual path configuration allows you to connect a maximum of four hosts.
You choose the data configuration based on:
• Number of hosts required
• Level of data redundancy required
Redundant And Non-Redundant Configurations
Non-redundant configurations are configurations that provide only a single data path from a host to the storage array.
This type of configuration is only recommended for non-critical data storage. Path failure from a failed or removed cable,
a failed HBA, or a failed or removed RAID controller module results in loss of host access to storage on the storage
array.
Redundancy is established by installing separate data paths between the host and the storage array, in which each path
is to one of the two RAID controller modules installed in the storage array. Redundancy protects the host from losing
access to data in the event of path failure, because both RAID controller modules can access all the disks in the storage
array.
NOTE: For detailed information about all cabling configurations including direct and SAN-attached hosts, cabling
for remote replication environments, the use of zoning, and HBA installation, see
Configuring Fibre Channel With
the Dell MD3660f Series Storage Array , at support.dell.com/manuals.
Cabling PowerVault MD3060e Expansion Enclosures
You can expand the capacity of your PowerVault MD3660f Series storage array by adding PowerVault MD3060e
expansion enclosures. You can expand the physical disk pool to a maximum of 120 (or 180, if enabled using Premium
Feature activation) physical disks using a maximum of two expansion enclosures.
NOTE: Hot plug of MD3060e expansion enclosure is not recommended. Power on all MD3060e expansion
enclosures before you power on the array enclosure. For helpful videos and other resources on PowerVault MD
series, see dell.com/PVresources.
Expanding With New PowerVault MD3060e Expansion Enclosures
Perform the following steps to attach new PowerVault MD3060e expansion enclosures to a PowerVault MD3660f Series
storage array:
1. Before adding the expansion enclosure(s), ensure that the storage array software is installed and is up to date.
For more information, see the Support Matrix at support.dell.com/manuals.
2. Install the software and driver package included on the PowerVault MD Series resource media.
For information about installing the software, see
Installing MD Storage Manager .
3. Using MD Storage Manager, update the RAID controller module and NVSRAM firmware to the latest versions
available on support.dell.com.
4. Click Tools → Upgrade RAID Controller Module Firmware from the Enterprise Management Window (EMW).
5. Stop all I/O to the storage array and turn off affected host systems attached to the storage array.
6. Turn off the storage array.
7. Turn off any expansion enclosure(s) in the affected system.
8. Cable the expansion enclosure(s) to the storage array.
9. Turn on the expansion enclosure(s) and wait for the enclosure status LED to turn blue.
10. Turn on the storage array and wait for the status LED to indicate that the unit is ready:
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