User guide

DataDirect Networks SFA™ OS 2.1.1.2 Release Notes Revision A2 | 13
• Restarting a controller with an IPMI Power On command leaves CPU0_Temp
as Not Available
It is possible to remotely start the controller after a SHUTDOWN CONTROLLER or
SHUTDOWN SUBSYSTEM, but doing so leaves the controller's CPU0_Temp as Not
Available.
Resolution: Manually restart the controller with the power button or by reseating
the canister instead of using IPMI Power On command. [BMC-59]
• Warm Boot Hang at step B2 [BIOS-45]
A controller restart (SHUTDOWN CONTROLLER RESTART, SHUTDOWN
SUBSYSTEM RESTART, UPDATE CONTROLLER, …) may fail to restart. The last
output seen on the serial console will be B2.
Resolution: Power cycle the canister by unseating it for 60 seconds and reseating it.
If this does not turn off the canister, then try press the hidden power button.
5.8 Red Hat 6.2
This section applies to the SFA12K-40, SFA12K-20, SFA10K-X, and SFA10K-M.
• Updating the kernel and multipath packages to the latest version is recommended. As
of this release, minimum DDN qualified versions include:
o the kernel version - 2.6.32-279.2.1.el6.x86_64
o the multipath version - 0.4.9-56.el6_3.1.x86_64.
• The kernel modules that come with OFED 1.5.4 will cause I/O threads to hang when
the data path between the controller and switch is lost. A workaround for this issue is
to use the Red Hat supplied InfiniBand solution. For a switched InfiniBand
environment:
o Install the in-box OFED drivers that come with RHEL 6 Update 2
o Update the multipath-tools package to a minimal version of 0.4.9-56.el_3.1
o Do not use user-friendly names in multipath.conf
o Configure RHEL 6 Update 2 to a minimal kernel version of 2.6.32-279.2.1.el6
• These packages are required for InfiniBand support on Red Hat. (Use the command,
yum groupinstall infiniband to install all IB packages):
o ibutils-1.5.7-6.el6.x86_64
o infiniband-diags-1.5.12-3.el6.x86_64
o opensm-libs-3.3.13-1.el6.x86_64
o opensm-3.3.13-1.el6.x86_64
o libmlx4-1.0.2-5.el6.x86_64
o srptools-0.0.4-15.el6.x86_64
• To start IB lun discovery, issue these commands:
1. modprobe ib_umad
2. modprobe ib_uverbs
3. modprobe mlx4_ib
4. opensm -g <port GUID> (where port GUID is the port GUID from ibstat output
5.
run_srp_daemon -R 20 -T 10 -nce -i <ca_name> -p <port> (where ca_name is
the channel adapter name and port is the port number)