Hello Allen Ward    Thank you for your response, which lead me down the correct path![IMAGE]  I tried the way you suggested but appeared it was still wrong order, however I modified your example a little and now was successful!     C:\windows\system32>symdev -sid 515 modify tdev 001DF -cap 64 -captype gb -nop 'tdev': Invalid device name.     CORRECTED COMMAND: C:\windows\system32>symdev modify 001DF -sid 515 -cap 64 -captype gb -nop -tdev Modify devices operation succeeded.
I would like to use CLI to expand some volumes (TDEV) however I cannot get the syntax correct.  I have the following support doc below however syntax fail for me.  I am using SE v8.2  Symmetrix Command Line Interface (SYMCLI) Version V8.2.0.0 (Edit Level: 2153) built with SYMAPI Version V8.2.0.0 (Edit Level: 2153)  I've tried the syntax several ways but still fails.  Any advice on correct command? [IMAGE]   C:\windows\system32>symdev modify 001DF -sid 515 -cap 64 -nop -tdev One or more arguments are invalid  C:\windows\system32>symdev -sid 515 modify -tdev 001DF -cap 64gb prepare -nop '64gb': Invalid device capacity.  C:\windows\system32>symdev -sid 515 modify -tdev 001DF -cap 64 prepare -nop Invalid number of keywords.   EMC Support document with volume expansion directions: [URL]   VMAX3 5977.691.684 Thin device expansion support:  Solutions Enabler:  Please note the -cap in the command above refers to the size you want the device expanded to. Not the extra amount of space. So enter the amount you want as the final size for the device. 
VMAX 200K What is correct volume expansion command syntax for SE 8.2v?