Hi. I'm glad to see someone else has this problem with a Ditto Max. I
have a Ditto Max with DASH EZ FDC (PnP card), and I've confirmed with
isapnp and /var/log/messages that the low-level communication is happening.
But when trying to use the drive I get numerous overruns and retries, just
as Paulo is reporting. I haven't yet made a successful backup.
I've experimented with different parameter settings, different tapes,
different IRQs, etc. I've checked ftape docs and dejanews. Can anyone
explain what the problem is, and what we should try next?
I can provide details of the hardware configuration if they would help.
-Tom
Paulo Almeida <[EMAIL PROTECTED]> writes:
> I have an Iomega Ditto Max Pro and now I'm trying to install on Redhat
> 5.2 with kernel 2.2.0.
>
> I'm using this script to install
>
> /sbin/insmod ./ftape.o ft_fdc_driver=ftape-internal,none,none,none
> ft_tracings=3,3,3,3,3
> /sbin/insmod ./zftape.o ft_major_device_number=27
> /sbin/insmod ./ftape-internal.o ft_fdc_fc10=0 ft_fdc_mach2=0
> ft_fdc_base=0x0210 ft_fdc_dma=0 ft_fdc_threshold=15
> ft_fdc_rate_limit=2000
>
> And everything i get when i try to use my ditto max is
>
> Mar 18 12:42:05 server kernel: [011] 0 ftape-ctl.c
> (ftape_log_vendor_id) - tape drive type: Iomega DITTO MAX.
> Mar 18 12:42:07 server kernel: [012] 0 ftape-io.c
> (ftape_report_configuration) - TR-3 tape detected.
> Mar 18 12:42:07 server kernel: [013] 0 ftape-ctl.c (ftape_init_drive)
> - post QIC-117B drive @ 2000 Kbps.
> Mar 18 12:42:07 server kernel: [014] 0 ftape-ctl.c
> (ftape_calibrate_data_rate_R20424b34) - Highest FDC supported data rate:
> 2000 Kbps.
> Mar 18 12:42:09 server kernel: [015] 0 ftape-io.c
> (ftape_report_configuration) - TR-3 tape detected.
> Mar 18 12:42:09 server kernel: [016] 0 ftape-ctl.c (ftape_init_drive)
> - unknown length QIC-3020 tape.
> Mar 18 12:42:35 server kernel: [017] 0 ftape-io.c
> (ftape_increase_threshold) - New FIFO threshold: 16.
> Mar 18 12:42:35 server kernel: [018] 0 ftape-rw.c
> (ftape_start_tape) - increased threshold because of excessive overrun
> errors.
> Mar 18 12:42:52 server kernel: [019] 0 ftape-io.c
> (ftape_increase_threshold) - cannot increase fifo threshold.
> Mar 18 12:42:54 server kernel: [020] 0 ftape-io.c
> (ftape_report_error_R64fbb47c) - errorcode: 31.
> Mar 18 12:42:55 server kernel: [021] 0 ftape-io.c
> (ftape_report_configuration) - TR-3 tape detected.
> Mar 18 12:42:55 server kernel: [022] 0 ftape-io.c
> (ftape_set_data_rate) - Rate change failed!.
> Mar 18 12:43:11 server kernel: [023] 0 ftape-io.c
> (ftape_increase_threshold) - cannot increase fifo threshold.
> Mar 18 12:43:12 server kernel: [024] 0 ftape-io.c
> (ftape_report_error_R64fbb47c) - errorcode: 31.
> .
> .
> .
