Home > Workload Solutions > SAP > Guides > SAP HANA TDI Guides > Dell Validated Design for SAP HANA TDI with PowerEdge Systems > Appendix B: Intel Optane memory
PowerEdge 15G and 14G servers with Intel Xeon CPUs combined with Intel Optane memory can lower the TCO for SAP HANA environments and increase the overall memory capacity in a machine.
Note: PowerEdge 16G servers do not support Intel Optane memory.
Intel Optane memory on SAP HANA allows up to 15 TB of data to be stored within one four-socket server beyond the physical capabilities of DRAM. SAP HANA supports PMEM only in App Direct mode for production systems. At the time of writing, memory mode is supported for nonproduction systems.
Here are the memory limits:
Note: PMEM works only with SAP HANA-certified Intel Xeon 2nd and 3rd Generation servers.
SAP HANA supports the following minimum operating system versions with PMEM:
For more information about Intel Optane memory, see SAP Note 2700084: FAQ: SAP HANA Persistent Memory (access requires login credentials).
All Intel Xeon 2nd and 3rd Generation Scalable processors with Xeon Gold or higher are compatible with Intel Optane memory. The specific processor needs depend on the total memory size (Intel Optane + DRAM). The CPU supports a specific memory size.
The following tables show the minimum CPU requirements. Depending on performance needs, you might prefer a higher version such as Intel Xeon platinum.
Processor type | Memory limit |
No suffix in processor type | 1 TB per socket (4 TB maximum) |
M suffix in processor type | 2 TB per socket (8 TB maximum) |
L suffix in processor type | 4.5 TB per socket (18 TB maximum) |
Intel Optane for SAP HANA can be used in two-socket or four-socket systems, as described in the following tables:
The following table shows the supported PMEM configurations for two-socket Intel Xeon 3rd Generation systems:
DRAM (size) | PMEM (size) | Total capacity | Ratio |
16 x 32 GB (512 GB) | 16 x 128 GB (2,048 GB) | 2,560 GB | 1:4 |
16 x 64 GB (1.024 GB) | 16 x 128 GB (2,048 GB) | 3,072 GB | 1:2 |
16 x 64 GB (1.024 GB) | 16 x 256 GB (4.096 GB) | 5,120 GB | 1:4 |
16 x 128 GB (2,048 GB) | 16 x 128 GB (2,048 GB) | 4,096 GB | 1:1 |
16 x 128 GB (2,048 GB) | 16 x 256 GB (4.096 GB) | 6,144 GB | 1:2 |
16 x 128 GB (2,048 GB) | 16 x 512 GB (8.192 GB) | 10,240 GB | 1:4 |
16 x 256 GB (4.096 GB) | 16 x 128 GB (2,048 GB) | 6,144 GB | 1:0.5 |
16 x 256 GB (4.096 GB) | 16 x 256 GB (4.096 GB) | 8,192 GB | 1:1 |
16 x 256 GB (4.096 GB) | 16 x 512 GB (8.192 GB) | 12,288 GB | 1:2 |
The following table shows the supported PMEM configurations for two-socket Intel Xeon 2nd Generation systems:
DRAM (size) | PMEM (size) | Total capacity | Ratio |
12 x 32 GB (384 GB) | 12 x 128 GB (1,536 GB) | 1,920 GB | 1:4 |
12 x 64 GB (768 GB) | 12 x 128 GB (1,536 GB) | 2,304 GB | 1:2 |
12 x 64 GB (768 GB) | 16 x 256 GB (3.072 GB) | 3,840 GB | 1:4 |
12 x 128 GB (1,536 GB) | 12 x 128 GB (1,536 GB) | 3,072 GB | 1:1 |
12 x 128 GB (1,536 GB) | 12 x 256 GB (3.072 GB) | 4,608 GB | 1:2 |
12 x 128 GB (1,536 GB) | 12 x 512 GB (6,144 GB) | 7,680 GB | 1:4 |
12 x 256 GB (3,072 GB) | 12 x 128 GB (1,536 GB) | 4,608 GB | 1:0.5 |
12 x 256 GB (3,072 GB) | 12 x 256 GB (3,072 GB) | 6,144 GB | 1:1 |
12 x 256 GB (3,072 GB) | 12 x 512 GB (6,144 GB) | 9,216 GB | 1:2 |
DRAM (size) | PMEM (size) | Total capacity | Ratio |
24 x 32 GB (768 GB) | 24 x 128 GB (3,072 GB) | 3, 840 GB | 1:4 |
24 x 64 GB (1,536 GB) | 24 x 128 GB (3,072 GB) | 4,608 GB | 1:2 |
24 x 64 GB (1,536 GB) | 24 x 256 GB (6,144 GB) | 7,680 GB | 1:4 |
24 x 128 GB (3,072 GB) | 24 x 128 GB (3,072 GB) | 6,144 GB | 1:1 |
24 x 128 GB (3,072 GB) | 24 x 256 GB (6,144 GB) | 9,216 GB | 1:2 |
24 x 128 GB (3,072 GB) | 24 x 512 GB (12.288 GB) | 15,360 GB | 1:2 |
24 x 256 GB (6,144 GB) | 24 x 128 GB (3,072 GB) | 9,216 GB | 1:0.5 |
24 x 256 GB (6144 GB) | 24 x 256 GB (6,144 GB) | 12,288 GB | 1:1 |
24 x 256 GB (6,144 GB) | 24 x 512 GB (12.288 GB) | 18,432 GB | 1:2 |
Use any internal storage or certified Dell SAP HANA external storage. To help you prepare the disk sizing, SAP provides references to tools and documents in the SAP HANA Storage Requirements white paper that is attached to SAP Note 1900823: SAP HANA Storage Connector API (access requires SAP login credentials).
Scale-out systems are more complex, as described in the following table:
Volume | Size |
/hana/data | 1.2 x anticipated net data size on disk or 1 x total main memory (DRAM + PMEM) |
/hana/log | 512 GB |
/hana/shared | 1 TB |