Limitations
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Configuring a Boot Device on an EMC Storage Array
◆ When attached to a Symmetrix, the physical-to-logical split must
be such that you meet the minimum required disk space required
to install the Linux operating system. Refer to your Linux
distribution for these requirements.
◆ For RHEL 4.5 boot from a LUN with VCM gatekeeper existing on
a Symmetrix, you may receive an "unhandled exception with
ZeroDivisionError" message when partitioning the boot LUN.
Remove the VCM gatekeeper from the FA port and the
installation will be successful.
VNX series- or CLARiiON-specific limitations
Consider the following VNX series- or CLARiiON-specific
limitations:
◆ Prior to the installation on a VNX series or CLARiiON LUN, the
Linux host must have been manually registered on the array and
assigned to a Storage Group. At least one LUN must be bound to
the host's Storage Group and owned by the SP connected to the
adapter being used for the fabric boot. The VNX series or
CLARiiON storage system SP should be zoned to the
lowest-numbered channel in the server and the lowest-numbered
path to the boot LUN must be the active path.
◆ EMC recommends, although it is not required, that the boot LUN
be assigned Host LUN ID 0.
◆ During the installation procedure, it is recommended, but not
required, that only one LUN be assigned to the Storage Group for
ease of use. Once the installation has completed, additional LUNs
may be added to the Storage Group.
◆ Booting from the SAN requires the use of a
Unisphere/Navisphere Management station with the
Unisphere/Navisphere Manager or NaviCLI. The stations must
be separate from the boot server, but networked to the VNX series
or CLARiiON storage system.
