Support Notes for Red Hat Enterprise Linux ES v.4 Update 4 for HP Integrity Servers

23. Ethernet connections may not work properly on BL860c blade servers running Linux with
the Ethernet Pass-Thru module. The standard Linux driver (tg3) does not autonegotiate
properly to secure the connection.
To fix this problem, HP has qualified a special version of the tg3 driver, which can be
downloaded from the drivers area of www.hp.com. Detailed installation instructions are
included in the documentation package that is posted with the driver. The fixed driver will
be included in the follow-on Red Hat Linux distributions: RHEL 4.5 and RHEL 5.1.
Even with the fixed tg3 driver the system may not establish a link 100 percent of the time
because of a hardware problem. This is an issue that manifests itself on Linux and does not
affect other operating systems. Until this issue is resolved, if the system does not establish
a link, then simply retry the Ethernet operation that failed.
24. System panics may occur on Integrity servers running Linux that have fibre channel (FC)
storage arrays directly connected.
If you plan to connect FC storage to Integrity Servers running Linux, you must connect
through a FC switch. For the BL860c Blade servers, customers must use either the FC switch
module (AE370A/AE371A/AE372A) or an external FC switch.
25. This problem is specific to the LSI1068 SAS I/O controller in the rx2660 and BL860c.
The mpt driver included in RHEL4 U4 does not have the necessary agent components
required by HP System Insight Manager.
To fix this problem, HP has qualified a special version of the mpt driver, which can be
downloaded from the drivers area of www.hp.com .
Known Issues 11