Is there any optimization options for Iomega Ditto Max Pro, i'm using
modules/insert script to enable ftape. The drive is VERY slow, maybe 0,5MB
per second, i think. I'm very new with tape drives and i don't know them
very much.. please guide me to right way :)
My kernel is 2.2.1-ac6 and ftape is ftape-4.x-1999_02_08. And i'm using
tar to make backups.
Why ftape is producing these messages, my log file grows heavily?
--snip--
.....
Feb 19 08:52:38 susi kernel: [233] 0 ftape-write.c (ftape_write_segment_R6ec54595)
- write error, retry 1 (41526).
Feb 19 08:52:39 susi kernel: [234] 0 ftape-io.c (ftape_increase_threshold) -
cannot increase fifo threshold.
Feb 19 08:52:40 susi kernel: [235] 0 ftape-write.c (ftape_write_segment_R6ec54595)
- write error, retry 1 (41528).
Feb 19 08:52:42 susi kernel: [236] 0 ftape-io.c (ftape_increase_threshold) -
cannot increase fifo threshold.
Feb 19 08:52:43 susi kernel: [237] 0 ftape-write.c (ftape_write_segment_R6ec54595)
- write error, retry 1 (41530).
Feb 19 08:52:45 susi kernel: [238] 0 ftape-io.c (ftape_increase_threshold) -
cannot increase fifo threshold.
Feb 19 08:52:45 susi kernel: [239] 0 ftape-rw.c (ftape_start_tape) - failed to
reposition.
Feb 19 08:52:45 susi kernel: [240] 0 ftape-write.c (ftape_start_writing) -
ftape_start_tape(ftape, segment_id, ftape->fdc->buffer_head->shor$
Feb 19 08:52:45 susi kernel: [241] 0 ftape-write.c (write_segment) -
ftape_start_writing(ftape, write_mode) failed: -5.
Feb 19 08:52:45 susi kernel: [242] 0 ftape-write.c (ftape_write_segment_R6ec54595)
- write_segment failed, error: -5.
Feb 19 08:52:45 susi kernel: [243] 0 zftape-write.c (_zft_write) -
zftape_write_segment(zftape, zftape->pos.seg_pos, seg_sz) failed: -5.
Feb 19 08:52:45 susi kernel: [244] 0 zftape-ctl.c (_zft_close) - Error: unable to
update header segments.
Feb 19 08:55:05 susi kernel: [245] 0 ftape-ctl.c (ftape_print_history) - ==
Non-fatal errors this run: ==.
Feb 19 08:55:05 susi kernel: [246] 0 ftape-ctl.c (ftape_print_history) - fdc isr
statistics:
Feb 19 08:55:05 susi kernel: id_am_errors : 0
Feb 19 08:55:05 susi kernel: id_crc_errors : 7
Feb 19 08:55:05 susi kernel: data_am_errors : 0
Feb 19 08:55:05 susi kernel: data_crc_errors : 0
Feb 19 08:55:05 susi kernel: overrun_errors : 15158
Feb 19 08:55:05 susi kernel: no_data_errors : 2
Feb 19 08:55:05 susi kernel: retries : 15166.
--snip--
Jarkko Haapalainen
