Dr Configuration Issues; Dr-Max-Mem Variable; To Enable The Kernel Cage - Sun Microsystems Sun Enterprise 10000 Dynamic Reconfiguration User Manual

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C H A P T E R

DR Configuration Issues

This chapter describes how to configure a domain for all DR operations and
capabilities.
Caution – Be careful when choosing the slot into which a board is inserted to
prevent disk controller renumbering. For more information, see "Reconfiguration
After a DR Operation" on page 7.

dr-max-mem Variable

With the Solaris 7 and Solaris 8 operating environments, dr-max-mem is no longer
used. Instead, the DR feature, specifically DR Detach, must be enabled by using the
system(4) variable kernel_cage_enable. A caged kernel confines the
nonpageable memory to a minimal (most often one) number of systems boards. By
default, the kernel cage is disabled, preventing DR Detach operations.
Note – DR Attach is enabled regardless of the setting of kernel_cage_enable.

To Enable the Kernel Cage

1. Edit the /etc/system file so that kernel_cage_enable equals 1.
set kernel_cage_enable=1
2. Reboot the domain.
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