Issue RHEL 5 sytems with 1 terabyte of memory experience a kernel panic during installation   Environment Red Hat Enterprise Linux 5, 64-bit, all update releases   Resolution The 64-bit version of Red Hat Enterprise Linux 5 has a theoretical

Issue In certain situations under heavy loads, the network interface card can stop accepting packets from remote devices. This problem has been reported on Red Hat Enterprise Linux 5.3 and above when using a Broadcom NetXtreme 5709 network interface

Issue A bond configured on the host is not available after host restart. The network set over the bond is not available on the RHEV-M GUI. Manually running service network restart fixes the network and the bond become available.   Environment Red

Issue: Red Hat Enterprise Linux supports a maximum of 32 logical processors with the 32-bit kernel.   Environment: RHEL 4 RHEL 5   Resolution: This is a known limitation of the 32-bit kernel on Red Hat Enterprise Linux.  For specific

Email download file:

Configuring Linux to Enable Multipath IO.zip

Storage is an essential data center component, and storage area networks can provide an excellent way to help ensure high availability and load balancing over multiple redundant data paths. To take advantage of these benefits in Linux OS environments, enterprise IT organizations can use applications to set up multipath I/O configurations.

BY TESFAMARIAM MICHAEL, REZWANUL KABIR, JOSHUA GILES, AND JOHN HULL

On last month's epic teleconference outlining the company's Sun plans, Oracle president Charles Phillips and CEO Larry Ellison both extolled Solaris as its strategic enterprise platform. Only in response to questions did Ellison talk up Linux.

"We're still a big fan of Linux. [Oracle Unbreakable Linux] is compatible with Red Hat and you'll see us do many things better than Red hat. We're Red Hat plus." Ellison said.

Issue I am unable to record sound on my Lenovo ThinkStation models S20 and D20.   Environment Lenovo ThinkStation S20 or D20 in these configurations: Red Hat Enterprise Linux 5.3 or later for the model S20 Red Hat Enterprise Linux 5.4 or later for

It's that time of the year again, the season of the Linux conferences is starting. Several conferences are planned in 2010.

 Oracle XPS The Netherlands On HA

 Elena's Blog

 Sergio's Blog

Issue   HP ProLiant WS460c G6 Workstation blades include nVidia graphics mezzanine cards, some of which can only be used in conjunction with the proprietary nVidia driver and HP's Remote Graphics Software client. It is not possible to use these

Issue RHEL 5.4 sytems with 1 terabyte of memory kernel panic during install Environment Red Hat Enterprise Linux 5.4 Kernel 2.6.18-164.el5 64 bit IBM x3850 X5 Resolution     Red Hat Enterprise Linux 5.4 has a physical addressable limit of

Issue Which update release of Red Hat Enterprise Linux 5 provides support for the Cisco UCS M81KR Virtual Interface Card?   Environment Red Hat Enterprise Linux 5   Resolution Support for the Cisco UCS M81KR Virtual Interface Card was added to

Issue NIC interfaces remain pingable for a few seconds after the ifdown command is issued.   Environment Red Hat Enterprise Linux 4.x, 5.x with any kernel.   Resolution This is expected behavior. The slight delay happens because the call

Issue Prior to update RHSA-2009-1455, there were some instances in the kernel where the __ptrace_unlink() function (part of the ptrace system call) used REMOVE_LINKS and SET_LINKS , rather than add_parent and r emove_parent , while changing the

Issue ib_mthca, the driver for Host Channel Adapter (HCA) cards based on the Mellanox Technologies MT25408 InfiniHost III Lx HCA integrated circuit device, uses kmalloc() to allocate large bitmasks. This ensures allocated memory is a contiguous physical

Issue Prior to update RHSA-2009-1438, the get_random_int() function returned the same number until the jiffies counter (which ticks at a clock interrupt frequency) or process ID (PID) changed, making it possible to predict the random numbers. This may

I wanted to take a brief moment to explain an interesting feature that can be used since the release of both Oracle VM 2.2 and the Oracle VM 2.2 Manager template.

One of the new features in 2.2 is the ability to do master server failover. When you configure a server pool in HA mode you provide a virtual IP address. This virtual IP address points to the (a) node in the pool that has the role of pool master.

Honglin posted a new blog entry with detail about the newly released templates but I wanted to also post it here and share the link to his entry : Virtualization blog

Issue The Qlogic driver, qla2xxx, provides an option for disabling Message Signaled Interrupts (MSI) and MSI-X (the former are defined in PCI 2.2, the latter in PCI 3.0). However, prior to update RHSA-2009-1455, disabling MSI-X also disabled MSI.  

Issue Prior to update RHSA-2009-1455, EQ context memory was mapped to one host page. This resulted in a hard-coded limit on EQ allocation.   On systems with 32 or more CPU cores, the mlx4_core driver (for Mellanox ConnectX IB Dual-Port InfiniBand

Issue Red Hat Cluster Suite fencing each other Environment Red Hat Enterprise Linux 5.4   Red Hat Cluster Suite composed of 3 nodes. Each node holds 1 vote. qdisk configured, which holds 2 votes in order to maintain operational state after 2

Issue VirtIO drivers for Windows2003/Windows2008 64-bit are available on the Red Hat Network (RHN)   Environment Red Hat Enterprise Virtualization Manager for Servers v2.1 Windows 2003 guest OS Windows 2008 guest OS   Resolution Log into RHN

Issue Network usage (scp, ftp, web browsing, etc.) causes a kernel panic on RHEL5.4 Xen kernel (2.6.18-164.el5xen) Environment Red Hat Enterprise Linux 5.4 Xen kernel (2.6.18-164.el5xen). Verify with: # uname -a Generic receive offload (GRO) is active

Issue How do I set up yum to get updates for my system? How do I use RHEL5 behind a firewall? Environment Red Hat Enterprise Linux 5 (RHEL5) Resolution To use the Red Hat repositories, make sure that you have installed the following package:  

By one colleague I was asked how to add iSCSI storage without stopping the iSCSI service itself.

Below how this works. I used tgt as iSCSI service.

Issue When using IPv6 diagnostic software (such as the Codenomicon IPv6 test suite or ip6sic tool), running certain tests that send IPv6 packets with invalid hop-to-hop extended headers results in a kernel panic. Environment Red Hat Enterprise Linux 5

Red Hat is committed to protecting Itanium® customers' investments and to providing these customers with enterprise class support for Red Hat Enterprise Linux 5 through March 2014.  During this period, Red Hat will provide support, deliver new

In my previous post, I moved the 11gr2 Grid infrastructure (gi) home to another location. Unfortunately, as I showed, during my actions the re-run of root.sh caused the diskgroup holding the clusterware-files (vote / ocr) to be recreated.
Recreating this diskgroup would mean loosing my database data in it.

My colleagues from the development organization helped me out and told me how I could solve this. Below you can find my notes.

Please note: I am NOT telling is this a supported action.