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Program Scope

The goal of this program is to validate hardware with Oracle Linux and Oracle VM, and to identify issues and configuration details that would impact customer deployments. Oracle developed the program to go far beyond the standard certification testing normally performed with operating systems. Hardware vendors participating in this program perform thorough testing of the hardware in real-world configurations with Oracle Linux and Oracle VM.

This is not a database certification. Oracle Database is a component of the environment because it is demanding on hardware resources (processor, memory, cache, storage, network) and the operating system, and well suited for this advanced level of testing. The validation program uses Oracle Database as a tool and hardware is not certified with Oracle Database as a result of the validation program.

For more information please see the program's Frequently Asked Questions (FAQ).

OVM Configuration Summary
Validated Configuration Details
Publication Date02-JUN-08
Server PlatformHuawei BH22 Server Blade
Storage ModelEMC CX500
Guest VMsOracle Database Single Instance on OEL 4 Update 5 x86_64 , OEL 5 Update 1 x86_64
Linux DistributionOracle VM Server 2.1.1 x86 and x86_64
Guest VM Configurations
Oracle recommends Paravirtualized guests
Server and Storage Platform Details
Server Model Huawei BH22 Server Blade
Processors2 X Intel Xeon 5160 3.0GHz 2992MHz 4MB
Hardware Virtualization SupportYes
Memory8GB RAM
OnBoardStorage2 X 73GB 10k RPM SAS drives configured as RAID 1
Network/Interconnect1 X Dual port Broadcom Corporation NetXtreme BCM5715 Gigabit Ethernet
HBA Dual Port, Qlogic 2342 2Gb/133Mhz Fibre Channel HBA
Storage ModelEMC CX500 , CX300 , EMC Clarion CX700
Storage Details6 x 73 GB 10K FC Drives (RAID 5)
Switch Details
Switch ModelNX20
Switch TypeFC Switch
Additional Info.Optional component of Huawei XCBB Switch Blade
Oracle VM Server Details
OSOracle VM Server 2.1.1 x86 and x86_64
Kernelkernel-ovs-2.6.18- or higher
Xen Versionxen-64-3.1.3-0.0.5.el5.noarch.rpm or higher
Additional InfoNone
Driver Modules
Driver ModuleNetwork driver module (tg3)
Additional Info.The driver used is tg3 supplied with the distribution
Driver ModuleQlogic HBA driver module (qla 2xxx)
Additional Info.The driver used is HBA driver module supplied with the distribution
Driver ModuleMPT SAS HBA driver module
Additional Info.The driver used is SAS HBA driver module supplied with the distribution
Two gigabit networks, 1 for public(igb) and 1 private(igb).
The swap partition is 16GB.
Configuration Feedback
Bug No4817
SummaryUnder heavy i/o load on iSCSI storage , dom0 networking stops responding for brief periods of time
AffectsNetwork on Dom0 on servers that support hardware virtualization
SymptomIf ip6tables is enabled, Dom0 networking stops responding for brief periods of time and error messages are seen: iscsi: detected conn error in dmesg
Solution/WorkaroundFixed in OVM 2.1.2 , i.e. ip6tables is turned off by default and if ip6tables has been enabled manually then disable them.
Bug No4819
SummaryLive migration and save/restore operation may fail on a paravirtualized guest ( EL4U5 x86-64 and EL5 x86-64)
AffectsLive migration of paravirtualized guests ( EL4U5 x86-64 and EL5 x86-64 )running Oracle DB under heavy load
SymptomIf the migration is attempted - the destination server may reboot; or the originating server may halt; or the migrating paravirtualized guest may panic
Solution/WorkaroundFixed in OVM 2.1.2, For OVM 2.1, The fix is available as a combination of patches for the guest and hypervisor.Use xen-3.1.1-0.0.36 kernel or higher for hypervisor.For the guests, Use the oracle kernels for OEL 4.5 x86(kernel-xenU-2.6.9- or higher), OEL5.1 x86 and x86-64 guests (kernel-xen-2.6.18- or higher ) available at ULN. The fix is not available for OEL4.5/6 x86-64. For 2.1.1,Use only the patched Oracle kernels for the guests as mentioned in 2.1 above.
Bug No5707
SummaryUnable to install on systems having memory > 32 GB
AffectsSystems having large memory configurations
SymptomServer boot up will fail.
Solution/WorkaroundFixed in OVM 2.1.2, for OVM version < 2.1.2, At install time, enter mem=32G at the boot prompt. This will allow the installer to come up properly. Note: After installation, Oracle VM will boot and recognize all the memory without problems.
Bug NoOracle Bugzilla 4818
SummarySystem time on virtual machine may drift
AffectsApplications that require time synchronization across the servers or virtual machines. This affects both hardware virtualized and paravirtualized virtual machines.
SymptomThe symptoms include the network to restart on a system configured with dhcp; cron jobs may not be executed at the required time.
Solution/WorkaroundTo maximize clock accuracy, ntp service should be enabled in domain0.For PVM virtual machines perform the following steps: (1) Edit /etc/sysctl to set xen.independent_wallclock to 1; run sysctl -p to make the change effective; (2) Enable ntp service: chkconfig ntpd on; service ntpd start. For PVHVM virtual machines perform the following steps: (1) Verify that timer_mode parameter in vm.cfg is set to 0 for 32bit Linux, 1 for Windows, and 2 for 64 bit Linux. With OVM 2.1. release, these values should be set manually. In OVM 2.1.1 and higher versions, those values are set automatically if the virtual machine is created by Oracle VM manager or by virt-install command invoked with --os-type and --os-variant options (2) modify /etc/grub.conf in the virtual machine to add kernel parameters "clock=pit nohpet nopmtimer".
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