Dell PowerVault ML6000 - Manual (Page 111)

Chapter 5 Configuring Your Library
Working With FC I/O Blades
Dell PowerVault ML6000 User’s Guide 111
• After modifying these parameters, save the library configuration. For
instructions on how to save the library configuration, see Saving and
Restoring the Library Configuration on page 384.
The paths to open the appropriate screens are as follows:
• From the Web client, select
Setup > FC I/O Blades > Port Configuration
.
• From the operator panel, select
Setup > I/O Blades > Port
Configuration
.
FC I/O Blade Internal
Virtual Port for Media
Changers 5
FC I/O blades use an internal virtual port to access the media changer
devices (partitions). Each FC I/O blade can access all media changer
devices, except those that are defined in association with drive-based
access (also known as “LUN-1”). The PowerVault ML6000 library can
have up to 18 partitions. These internal virtual ports are not configurable
via channel zoning; thus, all media changer devices are accessible via
ports 1 and 2 of each FC I/O blade present within the library. This may
lead to one or more media changer devices being discovered multiple
times, depending on how the system is connected to host servers (for
example, if four partitions are defined in a system that has two FC I/O
blades, there would be four media changer devices visible on ports 1 and
2 of both FC I/O blades, for a total of 16). To minimize unnecessary
discovery of media changer devices, you need to configure host mapping.
See Managing FC Hosts and Host Mapping on page 113.
Configuring FC I/O Blade
Channel Zoning
5
When FC I/O blades are installed in the library, administrators can
configure channel zoning for selected FC I/O blades. Channel zoning,
also called port zoning, configures access to an entire FC and all the
LUNs on that channel for the exclusive use of a host or group of hosts on
a single port. Channel zoning enables you to control access between
specific target ports 1 and 2 and initiator ports 3–6 on an FC I/O blade.
Note: Channel zoning acts upon the FC tape drive LUNs seen
through the initiator ports on the FC I/O blade. Channel
zoning does not affect media changer (partition) LUNs. If you
want to map hosts to media changer LUNs though an FC I/O
blade, you must use the FC I/O blade’s FC host mapping
feature. For information on FC host mapping, see Managing
FC Hosts and Host Mapping on page 113.