Table 1-13 Cores usage with RtC Table 1-13 shows how the cores are used with RtC. The faster CPU with more cores, the extra memory and the hyper-threading capability of the  Storwize V5030, and improvements to RtC software results in good performance for smaller  customer configurations common to the market segment this product is intended to serve.  The feature is licensed per enclosure. Conversely, RtC is not available on the Storwize V5010  or Storwize V5020 models. A deduplicated volume or volume copy can be created in a data reduction pool. When you  implement deduplication, you must consider specific requirements in the storage  environment. Deduplication is a type of compression that eliminates duplicate copies of data. Deduplication  of user data occurs within a storage pool and only between volumes or volume copies that are  marked as deduplicated. However, there is no requirement for all nodes in a system, and  therefore all I/O groups, to support deduplication. You can create deduplicated volumes in an  I/O group when no compressed volumes or volume copies are in regular storage pools; that  is, when Random Access Compression Engine (RACE) compression is in use on that I/O  group. You can migrate any type of volume from a regular storage pool to a data reduction pool. You  can also migrate any RACE compressed volume to a data reduction pool. After you migrate a  volume to a data reduction pool, you can then create a deduplicated volume. Note:  The following software and hardware requirements are needed for deduplication.  There are also update and performance considerations: RACE compression and deduplication are not supported in the same I/O group. However,  data reduction compression and deduplication might be supported on certain platforms.  Figure 1-15 on page 33 shows the features that are supported on each platform. 32  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1 GLYPH<SM590000> Nodes that have more than 64 GB memory can use a bigger deduplication fingerprint  database, which might lead to better deduplication. GLYPH<SM590000> Nodes must have at least 32 GB memory to support deduplication. GLYPH<SM590000> Code level 8.1.3 or higher is needed for deduplication. GLYPH<SM590000> Code level 8.1.2 or higher is needed for data reduction pools. 1.7.4 Deduplication Compression Disabled Compression Enabled Model Normal  Processing RtC Normal  Processing RtC V5010 2 c ores NA NA NA V5020 2 c ores NA NA NA V5030 6 cores 0 cores 2 cores 4 cores + HT