We have added a USB tape drive to our Power6 (AIX 5.3) and seem to be unable to rewind the drive or use some other calls with tctl or mt.  Status does work.  Is there a workaround or something else we did wrong with mounting the USB drive?

# tctl -f /dev/rmt1 status
rmt1 Defined 04-08-00 SAS Tape Drive
attribute value description user_settable

block_size BLOCK size (0=variable length) True
compress yes Use data COMPRESSION True
density_set_1 DENSITY setting #1 True
density_set_2 DENSITY setting #2 True
extfm yes Use EXTENDED file marks True
mode yes Use DEVICE BUFFERS during writes True
ret yes RETENSION on tape change or reset True
ret_error no RETURN error on tape change or reset True
size_in_mb 0 Size in Megabytes False
ww_id 500110a00107d5c0 World Wide Identifier False


# tctl -f /dev/rmt1 rewind
/dev/rmt1 rewind 1 failed: A specified file does not support the ioctl system call.

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Chad R
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