Draft Document for Review December 5, 2019 4:33 pm 8456ch_DSCLI.fm deviceMTM 3390-9 volser - datatype 3390 voltype CKD Base orgbvols - addrgrp B extpool P3 exts 477 cap (cyl) 10017 cap (10^9B) 8.5 cap (2^30B) 7.9 ranks 2 sam Standard repcapalloc - eam rotateexts reqcap (cyl) 10017 cap (Mod1) 9.0 realextents 477 virtualextents 2 realcap (cyl) 10017 migrating 0 migratingcap (cyl) 0 perfgrp PG0 migratingfrom - resgrp RG0 tierassignstatus Unknown tierassignerror - tierassignorder Unknown tierassigntarget Unknown %tierassigned 0 etmonpauseremain - etmonitorreset unknown safeguardedcap (cyl) - safeguardedloc - usedsafeguardedcap (cyl) - safeguarded no SGC Recovered no ==============Rank extents============== rank extents capacity (MiB/cyl) metadata ======================================== R2 239 5019 no R3 238 4998 yes Dynamic volume expansion Example 12-65 Expand a striped CKD volume dscli>  chckdvol -cap 30051 BD00 CMUC00332W chckdvol: Some host operating systems do not support changing the volume size.  Data can be at risk if the host does not support this action. Are you sure that you want to  resize the volume? [Y/N]: y CMUC00022I chckdvol: CKD Volume BD00 successfully modified. A volume can be expanded without removing the data within the volume. You can specify a  new capacity by using the  chckdvol  command, as shown in Example 12-65. The new  capacity must be larger than the previous capacity.  You cannot shrink the volume . Chapter 12. Configuration with the command-line interface  417