Fcrlsancount – Dell POWEREDGE M1000E User Manual

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Fabric OS Command Reference

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fcrLsanCount

Displays or sets the maximum LSAN count.

Synopsis

fcrlsancount [max-lsan-count]

Description

Use this command to set or display the maximum number of LSAN zones that can be configured on
the edge fabric. By default, the maximum LSAN count is set to 3000, which is also the minimum.
This command lets you create more LSANs on your edge fabric, up to 5000, if needed to support
additional devices. The maximum number of supported LSAN devices is 10,000.

When executed without operand, this command displays the current LSAN zone limit.

This command assumes that all FCRs in the same LSAN fabric matrix or backbone have the same
maximum LSAN count defined in order to protect the FCRs from running into indefinite state.
Asymmetric LSAN configurations due to different maximum LSAN counts may lead to different
devices being imported on different FCRs.

Since the maximum number of LSANs is configured per switch, if there is a different maximum
LSAN count on the switches throughout the meta-SAN, the device import or export will not be
identical on the FCRs. You should therefore enter the same maximum LSAN count for all the FCR
switches in the same backbone that support this feature. Verify the configured maximum limit
against the LSANs configured using the fcrResourceShow command.

Notes

The default LSAN count maximum of 3000 is the Fabric OS v5.2 default. It allows v5.2 to run on the
standby CP if the active CP runs firmware v5.3 or later. In this case, you cannot increase the LSAN
Zone count to 5000, and if the v5.2 standby CP is coming online in a system where the LSAN count
is set to 5000, the HA sync will not be established. In addition, downgrading to a firmware version
lower than v5.3 is blocked if the LSAN count is set to 5000.

The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may
be in place. Refer to chapter 1, "Using Fabric OS commands" and Appendix A, "Command
Availability" for details.

Operands

This command has the following operands:

max-lsan-count

Specifies the maximum LSAN count.

Examples

To display the current LSAN limit:

switch:admin>

fcrlsancount

LSAN Zone Limit: 3000

To increase the LSAN zone limit:

switch:admin>

fcrlsancount 5000

LSAN Zone Limit: 5000