Appendix A. Frequently Asked Questions - IBM Cluster 1350 Installation And Service

Appendix A. Frequently Asked Questions

Contents
Here are some frequently asked questions about the IBM Cluster 1350.
Q: Why do I sometimes get the error message "2651-689 Java interface error for
method "query": SPException"?
A: This is due to a defect in the RSA firmware that is currently being investigated
by xSeries development. This problem occurs after making between 100 and 200
connections to the RSA through the ASM library. The work around is to reset the
RSA using the web or telnet interface. Until this defect is fixed, you may want to
increase the polling interval for each hardware control point using the command:
chrsrc -s 'Name like "%"' IBM.HwCtrlPoint PollingInterval=86400
Q: When I issue an 'rpower -n <node> reboot command why does the node not
reboot?
A: Sometimes the RSA cards get hung. They can be reset via the web interface,
telnetting to the RSA card, or issuing the command 'rpower -n
<node>resetsp_hcp.
Q: Why do I get the 'no hard drive found' message from Linux when installing an
x335 with IDE drives?
A: The file /csminstall/csm/1.3.0/kickstart.RedHat7.3/172.20.3.x-kickstart needs to be
changed.where x is the IP address of a node with IDE drives. Replace the
references to sda with hda. Try the installation again.
Q: During installation process tftp hangs on the installing node. What's going on?
A: tftp is not loaded/configured on the management node.
Q: Why doesn't the x345 boot PXE correctly?
A: You cannot have a PCI ethernet card that uses the e1000 driver in the x345
when installing. Take the card out and retry the installation.
Q:Why does the dhcp server run out of leases?
A: The problem may be that you have two networks going to the same switch
fabric. This causes both eth0 and eth1 to see the dhcp requests. To fix this create
separate vlans in the switches, one for each network attached to the switch.
Q: Why can Pxeboot not get an IP address using dhcp, but the operating system
can?
A: Check the switch. All ports connected to nodes (management, compute, and
storage) should have spinning-tree turned off.
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