Reduction With Server Rebooting; Path Addition And Reduction (Hba Addition And Reduction) - Fujitsu ETERNUS Multipath Driver V2 User Manual

Chapter 8 Changing the Multipath Configuration (SAS Connection for RHEL6, RHEL7, or SLES11)

8.7 Path Addition and Reduction (HBA Addition and Reduction)

3
Delete the removed hardware from the Multipath Driver target list using the "mpdconfig -d"
command.
[Example]
# /opt/FJSVmpd/bin/mpdconfig -d
4
Reset the Max Throttle value if necessary.
When the number of paths connected to a given CA port in the storage system is reduced due to the
path removal, execute the "mpdconfig -m" command to set the Max Throttle value correctly. Refer to
the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value
computation method.
8.6.2

Reduction with Server Rebooting

Same as for FC/FCoE connection.
Refer to "7.6.2 Reduction with Server Rebooting" (page
8.7 Path Addition and Reduction (HBA Addition and Reduction)
This section describes how to increase paths by adding HBAs, and decrease paths by removing HBAs.
Adding and reducing HBAs without server rebooting (PCI Hot Plug) is not supported.
Adding and reducing HBAs with server rebooting is the same procedure as adding and reducing cables with
server rebooting. Add or reduce HBAs at the same time that cables are being added or reduced.
FUJITSU Storage ETERNUS Multipath Driver V2 User's Guide for Linux
Copyright 2014 FUJITSU LIMITED
92).
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End of procedure
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