7.3 z14 ZR1 features and function support overview The following tables summarize the z14 ZR1 features and functions and their minimum  required operating system support levels: Information about Linux on Z refers exclusively to the appropriate distributions of SUSE, Red  Hat, and Ubuntu. All tables use the following conventions: GLYPH<SM590000> Table 7-3, “Supported Base CPC Functions or z/OS and z/VM” on page 214 GLYPH<SM590000> Table 7-4, “Supported base CPC functions for z/VSE, z/TPF, and Linux on Z” on page 216 GLYPH<SM590000> Table 7-5, “Supported coupling and clustering functions for z/OS and z/VM” on page 217 GLYPH<SM590000> Table 7-6, “Supported storage connectivity functions for z/OS and z/VM” on page 218 GLYPH<SM590000> Table 7-7, “Suppor ted storage connectivity functions for z/VSE, z/TPF, and Linux on Z” on  page 219 GLYPH<SM590000> Table 7-8, “Supported network connectivity  functions for z/OS and z/VM” on page 221 GLYPH<SM590000> Table 7-9, “Supporte d network connectivity functions for z/VSE, z/TPF, and Linux on Z” on  page 223 GLYPH<SM590000> Table 7-10, “Supported cryptography functions for z/OS and z/VM” on page 225 GLYPH<SM590000> Table 7-11, “Supported cryptogr aphy functions for z/VSE, z/TPF, and Linux on Z” on  page 226 GLYPH<SM590000> Table 7-12, “Supported Special-purpose feature for z/OS and z/VM” on page 227 GLYPH<SM590000> Y: The function is supported. GLYPH<SM590000> N: The function is not supported. GLYPH<SM590000> -: The function is not applicable to that specific operating system. Note:  The following tables list but do not explicitly mark all the features that require fixes  that are required by the corresponding operating system for toleration or exploitation. For  more information, see the PSP bucket for 3907DEVICE. The supported Base CPC Functions or z/OS and z/VM are listed in Table 7-3. 7.3.1 Supported CPC functions Function a z/OS V2R3 z/OS V2R2 z/OS V2R1 z/OS V1R13 z/VM  V7R1 z/VM V6R4 z14 ZR1 servers Y Y Y Y Y Y Maximum processor unit (PUs) per system image 170 b,c 170 b,c 170 b,c 100 b,c 64 d 64 d Maximum main storage size e 4 TB 4 TB 4 TB 1 TB 2 TB 2 TB 40 LPARs Y Y Y Y Y Y Separate LPAR management of PUs Y Y Y Y Y Y Dynamic PU add Y Y Y Y Y Y Dynamic LPAR memory upgrade Y Y Y Y Y Y Table 7-3 Supported Base CPC Functions or z/OS and z/VM 214  IBM 14 Model ZR1 Technical Guide