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Technical Specifications
8. Once the fabric has reconverged, use the cfgenable command to update
Offline Update Plans
The general format for an offline update plan is as follows:
1. Backup all data.
2. Verify backups.
3. Shut down all hosts and storage devices attached to the SAN.
4. Disable all switches in the fabric to be updated.
5. Change the PID format on each switch in the fabric.
6. One at a time, reenable the switches in the updated fabric.
7. Once the fabric has re-converged, use the cfgEnable command to update
Repeat
190
zoning.
For any devices manually bound by PID, update their bindings. This may
involve changing them to the new PIDs, or may (preferably) involve changing
to WWN binding.
For any devices automatically bound by PID, two options exist:
— Execute a custom procedure to rebuild its device tree online. Examples
are given in the Detailed Procedures section of this readme.txt. Reboot the
device to rebuild the device tree.
— Some operating systems require a special command to do this, for
example, boot -r command in Sun Solaris systems. For devices that do
not bind by PID or have had their PID binding updated, mark online or
re-associate the disk devices with the multipathing software and resume
I/O over the updated fabric.
Repeat with the other fabrics.
In a core/edge network, enable the core switches first.
zoning.
step 3
through
step 6
for all fabrics in the SAN.
Core Switch 2/64 V4.1 Installation Guide
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