What causes Channel Detect Errors when running a BACKUP or ARCHIVE of Linear VSAM files (LDS)?
ex:
IOS000I CD1C,2F,CMD,86,0E00,,5B7A0000,CMD008,@SSR7261, 221
The message IOS000I CD1C,2F,CMD,86,0E00 indicates:
CMD=Command reject
86=The command code of the running channel command word (CCW) when
the error occurred.
0E00=The status portion of the subchannel status word (SCSW).
X'86' is a multi-track read data issued starting at
cylinder/track 5B7A/0E00 and failing on
cylinder/track 5B7A/0000
for device CMD008
Using SYSPARM USEDSSIO with or including LDS will rectify the issue.
ex. USEDSSIOLDS