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Re: SATA->IDE emulation on IBM P4 bogs down on HD writes

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Bobbie Sellers <bliss-sf4ever@dslextreme.com> writes:

> On 05/19/2016 04:23 PM, Mike Spencer wrote:
>
>> This probably isn't a hardware matter per se but maybe a hardware
>> wizard here will have a solution.
>>
>> IBM P4 desktop came with an IDE HD.  HD failed.  Mobo has two plugs
>> labeled "SATA IDE n" where n is "1" and "2".  Plugging a SATA drive
>> into one of those (suitable cable and power adapter) results in the
>> SATA drive being seen by Linux as hda. (?!) It works just fine in
>> every respect except one:
> 
> Not a wizard but a simple minded person who has to ask
> why not A) get a SATA interface for the machine and plug it in.
> B) buy a true IDE drive to your boot drive.
> <ide hard drives for sale>

  A) Seems like overkill for an old machine. What would that be, a
     card that plus into a  slot?  Jeez, the  IBM mobo *has* SATA
     plugs that work *almost* perfectly.

  B) Done that.  Nobody on my manor has new IDE drives for sale but a
     friend had a 500G IDE HD with only a few hours' uptime on it.
     Tedious process of backing up his data, re-partitioning,
     re-installing Slackware etc. etc. Ongoing.  RSN.

It would still be nice to tweak the SATA->IDE emulation into
submission.

Thanks for paying attention.


>> Large writes to the HD, e.g. cp bigfile-from-foo /dir/on/HD, runs as
>> expected for a few seconds, then the system bogs down.  X cursor gets
>> jerky, key strokes may take a minute to elicit visible response.
>> Copy proceeds at an acceptable speed but the box is unusable until the
>> copy is finished and sync'd.
>>
>> This happens for any foo from which bigfile is copied -- USB thumb
>> drive, HD mounted over USB or another partition on the HD.  Does *not*
>> happen with no HD writes, viz. cp /dir/on/HD/bigfile /mnt/usb/other-media
>> or cp /mnt/usb/thumb/bigfile /mnt/usb2/other-thumb.
>>
>> I've tried various things -- tweaking bits in /proc/... according to
>> Documentation/sysctl/vm.txt, runnning mbuffer. Looks (to me; but what
>> do I know?) like RAM is filling up with reads and stays filled up
>> until writes to HD are completed.
>>
>> Aynone know about this?
>>
>> Using SLackware 11 with 2.4.33 kernel.  A (much) newer kernel might
>> very well fix it.  I need to continue with the 2.4 kernel on this box.
> 	
> 	Better buy that IDE hard drive then.


-- 
Mike Spencer                  Nova Scotia, Canada

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SATA->IDE emulation on IBM P4 bogs down on HD writes Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-05-19 20:23 -0300
  Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2016-05-19 16:32 -0700
    Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-05-20 12:28 -0300
      Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2016-05-20 09:10 -0700
  Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2016-05-22 11:37 +0200
  Re: SATA->IDE emulation on IBM P4 bogs down on HD writes "Carlos E.R." <robin_listas@invalid.es> - 2016-05-24 21:52 +0200
    Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-05-28 04:07 -0300
      Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Henrik Carlqvist <Henrik.Carlqvist@deadspam.com> - 2016-05-28 11:09 +0000
        Re: SATA->IDE emulation on IBM P4 bogs down on HD writes "Carlos E.R." <robin_listas@invalid.es> - 2016-05-28 17:12 +0200
        Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-05-29 01:50 -0300
          Re: SATA->IDE emulation on IBM P4 bogs down on HD writes ANTant@zimage.com (Ant) - 2016-05-29 11:41 -0500
        Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-05-29 02:41 -0300
          Re: SATA->IDE emulation on IBM P4 bogs down on HD writes "Carlos E.R." <robin_listas@invalid.es> - 2016-05-29 14:06 +0200
            Re: SATA->IDE emulation on IBM P4 bogs down on HD writes ANTant@zimage.com (Ant) - 2016-05-29 11:42 -0500
              Re: SATA->IDE emulation on IBM P4 bogs down on HD writes "Carlos E.R." <robin_listas@invalid.es> - 2016-05-29 21:09 +0200
                Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Aragorn <thorongil@telenet.be.invalid> - 2016-05-30 10:57 +0200
                Re: SATA->IDE emulation on IBM P4 bogs down on HD writes "Carlos E.R." <robin_listas@invalid.es> - 2016-05-30 14:21 +0200
                Re: SATA->IDE emulation on IBM P4 bogs down on HD writes Aragorn <thorongil@telenet.be.invalid> - 2016-05-30 15:49 +0200

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