Requires Intel EPT and AMD RVI technology support.Officially support 125 CPUs across the entire machine.If all machines in the cluster are 64-bit, the maximum size is 8EB. If there are any 32-bit machines in the cluster, the maximum gfs file system size is 16TB.Red Hat Enterprise Linux 7 and newer releases do not include support for the 32-bit x86 architecture. Red Hat Enterprise Linux 6 and newer releases do not include support for the Itanium 2 architecture.The x86 Hugemem kernel is not provided in Red Hat Enterprise Linux 5 or newer releases.In certain workload scenarios it may be advantageous to use the Hugemem kernel on systems with more than 12GB of main memory. Systems with more than 16GB of main memory use the Hugemem kernel. The SMP kernel supports a maximum of 16GB of main memory.

Maximum number of device paths ( sd devices)Ĭommon Operating Environment (COE) compliant Maximum POWER per-process virtual address spaceĥ12MB minimum, 1 GB per logical CPU recommendedġGB minimum, 1 GB per logical CPU recommendedġGB minimum, 1 GB per logical CPU recommended 18ġ.5GB minimum, 1.5GB per logical CPU recommended 18ġGB minimum, 2GB required for installationįile systems and storage limits Ext3 Feature Maximum x86_64 per-process virtual address space Maximum x86 per-process virtual address space

All system memory should be balanced across NUMA nodes in a NUMA-capable system. Red Hat Enterprise Linux 5 limit is based on 40-bit physical memory addressing. Red Hat Enterprise Linux 6 limit is based on 46-bit physical memory addressing. The architectural limits are based on the capabilities of the Red Hat Enterprise Linux kernel and the physical hardware. So every core/thread in a multicore/thread processor is a logical CPU. Red Hat defines a logical CPU as any schedulable entity. The following values are formatted as tested/supported. Supported limits are subject to change as ongoing testing completes. In addition to supported limits reflecting hardware capability, there may be additional limits under the Red Hat Enterprise Linux subscription terms. If they exceed the supported limits posted here, entries in the Hardware Catalog will include a reference to the details of the system-specific limits and are fully supported. Systems exceeding these supported limits may be included in the Hardware Catalog after joint testing between Red Hat and its partners. Supported limits reflect the current state of system testing by Red Hat and its partners for mainstream hardware. What can Red Hat® Enterprise Linux® do? Find out in this chart of the supported and theoretical limits of the platform.

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