3340/3344 ALTERNATE TRACK SUPPORT Changed: Program Support
Software error recovery procedures BU. provide for switching to an alternate
track an atteapt to do I/O on a
defective 3340 or 3344 track results in a track condition check. Logic
affecting CP I/O, Diagnose I/O, and SIO issued from a virtual machine is
changed. These logic changes are
reflected in this publication. summary of Amendments
for SY20-0886-0 as updated by TNL S125-0446 V!/310 Release 5 PLC 6 Summary of Amendments xiii
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