Restrictions

Sequential data sets with the following attributes are not currently supported:

USER LABELS — not to be confused with standard labels used on both disk and tape.
TRACK OVERFLOW — blocks larger than track size.
DBRC — Recon data sets, if migrated with Sequential Migrate, can cause abends and should be excluded from processing.
IDRC — this type of hardware compression is unavailable by default. To instruct CA Disk to use an IDRC tape drive, simply add TRTCH=COMP to your JCL DD statement.