2078-312  IBM Storwize V5030  LFF Control Enclosure  32 GB or 64 GB 12 x 3.5 inch 2078-324  IBM Storwize V5030  SFF Control Enclosure  32 GB or 64 GB 24 x 2.5 inch 2078-AF3 IBM Storwize V5030F  All-Flash Array Control  Enclosure 64 GB 24 x 2.5 inch 2078-12F  IBM Storwize V5000  LFF Expansion  Enclosure  N/A 12 x 3.5 inch 2078-24F  IBM Storwize V5000  SFF Expansion  Enclosure  N/A 24 x 2.5 inch 2078-AFF IBM Storwize V5030F  SFF Expansion  Enclosure N/A 24 x 2.5 inch 2078-A9F IBM Storwize V5030F  High Density LFF  Expansion Enclosure N/A 92 x 3.5 inch Model Description Cache Drive Slots 5U 2U 01 23 45 678 9 0 0 0 024 048 072 096 120 144 168 192 216 240 1 092 116 140 164 188 212 236 260 - - - 2 184 208 232 256 280 304 - - - - - 3 2 7 6 3 0 2 4 - -- -- 4 3 6 8 --- -- -- Storwize V5030F control enclosures support only the attachment of Storwize V5030F  expansion enclosures (Models AFF and A9F). Storwize V5000 expansion enclosures (Models  12E, 24E, 12F, 24F, and 92F) are not supported with Storwize V5030F control enclosures.  Storwize V5030F expansion enclosures are supported for attachment to Storwize V5030F  control enclosures only. Storwize V5000 control enclosures (Models 12C, 24C, 112, 124, 212,  224, 312, and 324) do not support the attachment of Storwize V5030F expansion enclosures.  Table 1-5 shows the 2U expansion enclosures and 5U expansion enclosure mix rules. Shown  are the maximum numbers of Drive Slots per SAS expansion string without disks in the  controller. The Storwize V5030 systems can be added to an existing IBM Storwize V5000 Gen1 cluster  to form a two-I/O group configuration. This configuration can be used as a migration  mechanism to upgrade from the IBM Storwize V5000 Gen1 to the IBM Storwize V5000 Gen2.  Table 1-5 2U expansion enclosures and 5U expansion enclosure mix rules 8  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1