RE: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0
Also, please do
hdparm -I /dev/hda
This will return information directly from the drive about it's
capabilities.
-----Original Message-----
From: Mark W. Knecht [mailto:mknecht@controlnet.com]
Sent: Friday, June 15, 2001 2:34 PM
To: 'Johannes Bertscheit'; 'Xlvaro A. Novo'; 'suse-linux-e@suse.com'
Subject: RE: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE
Linux 7.0
OK - it does look like the drive so far, but the unbuffered speeds look like
DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up
hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off
hdparm -tT /dev/hda will test speeds again
(Thanks for the German translation!) ;-)
-----Original Message-----
From: Johannes Bertscheit [mailto:jbertscheit@web.de]
Sent: Friday, June 15, 2001 2:08 PM
To: 'Xlvaro A. Novo'; 'Johannes Bertscheit'; Mark W. Knecht;
suse-linux-e@suse.com
Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE
Linux 7.0
"Mark W. Knecht"
How about
hdparm -tT /dev/hdwhatever
and provide back the results. If the buffered speed is fast, but the actual disk speed is slow, it could be the disk itself. If both are slow then it's the PC itself.
pp hdparm -tT /dev/hda #my bad disk /dev/hda: Timing buffer-cache reads: 128 MB in 1.10 seconds =116.36 MB/sec Timing buffered disk reads: "Der Wecker klingelt" (the bell rings) {it seems he gets a timeout} pp hdparm -tT /dev/hdd #my good disk /dev/hdd: Timing buffer-cache reads: 128 MB in 1.00 seconds =128.00 MB/sec Timing buffered disk reads: 64 MB in 24.50 seconds = 2.61 MB/sec So its the drive - and the reads are soo slow - but why is the drive so slow? Hardware or Software (Driver) problem or drive settings? I have this problem only since some days ago and I have nothing changed in the configuration (except some side effects that I not know). ____________________________________________________________________________ __ Ferienklick.de - Jede Menge Urlaub auf einen Blick! Hier geht's zu Ihrem Traumstrand: http://ferienklick.de/?PP=2-0-100-105-1
Um, I notice that my drives are in the 16 bit mode....I can set them with hdparm -c 1 /dev/hda But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
God it's wonderful to know that I'm not the only person that has these problems. I heard on the postfix reflector the other day that "The first thing everyone does is turn on DMA". My /etc/rc.d/init.d/boot.local file has the commands I'm using. I'd love to know what the 'right' way to do it is. (See my earlier post about how I suck at configuring machines!) -----Original Message----- From: Internet Niue [mailto:stclair@niue.nu] Sent: Friday, June 15, 2001 2:49 PM To: suse-linux-e@suse.com Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0 Um, I notice that my drives are in the 16 bit mode....I can set them with hdparm -c 1 /dev/hda But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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rcidedma start (after configuring in rc.config) perhaps Regards Anders On Saturday 16 June 2001 00:03, Mark W. Knecht wrote:
God it's wonderful to know that I'm not the only person that has these problems. I heard on the postfix reflector the other day that "The first thing everyone does is turn on DMA".
My /etc/rc.d/init.d/boot.local file has the commands I'm using. I'd love to know what the 'right' way to do it is. (See my earlier post about how I suck at configuring machines!)
-----Original Message----- From: Internet Niue [mailto:stclair@niue.nu] Sent: Friday, June 15, 2001 2:49 PM To: suse-linux-e@suse.com Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0
Um, I notice that my drives are in the 16 bit mode....I can set them with
hdparm -c 1 /dev/hda
But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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Anders, Two questions: 1) There's no man page, or at least man rcidedma didn't work for me. 2) Where do you discover these things? Thanks, Mark -----Original Message----- From: Anders Johansson [mailto:andjoh@cicada.linux-site.net] Sent: Friday, June 15, 2001 3:06 PM To: Mark W. Knecht; stclair@niue.nu; Suse-Linux-E (E-mail) Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0 rcidedma start (after configuring in rc.config) perhaps Regards Anders On Saturday 16 June 2001 00:03, Mark W. Knecht wrote:
God it's wonderful to know that I'm not the only person that has these problems. I heard on the postfix reflector the other day that "The first thing everyone does is turn on DMA".
My /etc/rc.d/init.d/boot.local file has the commands I'm using. I'd love to know what the 'right' way to do it is. (See my earlier post about how I suck at configuring machines!)
-----Original Message----- From: Internet Niue [mailto:stclair@niue.nu] Sent: Friday, June 15, 2001 2:49 PM To: suse-linux-e@suse.com Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0
Um, I notice that my drives are in the 16 bit mode....I can set them with
hdparm -c 1 /dev/hda
But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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1) No, I don't believe there are man pages for any of the scripts in rc.d. Looking at it, it's just a startup script that runs hdparm on the hd# defined in rc.config 2) If you run YaST2:s 'tuning' option, it will inform you that the changes won't take effect until the next reboot, but running rcidedma start will do it immediately. That was where I found this. In general, the SuSE things are documented in the manuals. Don't know if *everything* is in there, but there's a lot. I haven't read all of it, and I just ordered 7.2 which will have a whole bunch of new things to learn and... (Could someone arrange for more than 24 hours in a day please :) Regards Anders On Saturday 16 June 2001 00:16, Mark W. Knecht wrote:
Anders, Two questions:
1) There's no man page, or at least man rcidedma didn't work for me.
2) Where do you discover these things?
Thanks, Mark
-----Original Message----- From: Anders Johansson [mailto:andjoh@cicada.linux-site.net] Sent: Friday, June 15, 2001 3:06 PM To: Mark W. Knecht; stclair@niue.nu; Suse-Linux-E (E-mail) Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0
rcidedma start (after configuring in rc.config) perhaps
Regards Anders
On Saturday 16 June 2001 00:03, Mark W. Knecht wrote:
God it's wonderful to know that I'm not the only person that has these problems. I heard on the postfix reflector the other day that "The first thing everyone does is turn on DMA".
My /etc/rc.d/init.d/boot.local file has the commands I'm using. I'd love
to
know what the 'right' way to do it is. (See my earlier post about how I suck at configuring machines!)
-----Original Message----- From: Internet Niue [mailto:stclair@niue.nu] Sent: Friday, June 15, 2001 2:49 PM To: suse-linux-e@suse.com Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0
Um, I notice that my drives are in the 16 bit mode....I can set them with
hdparm -c 1 /dev/hda
But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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* Mark W. Knecht
Anders, Two questions:
1) There's no man page, or at least man rcidedma didn't work for me.
man hdparm
2) Where do you discover these things?
Actually a good question... I wonder if its answerable. I know I could not answer it. -- Mads Martin Joergensen, http://mmj.dk "Why make things difficult, when it is possible to make them cryptic and totally illogic, with just a little bit more effort." -- A. P. J.
But isn't -c 1 for PIO only? I didn't think it effects DMA operation..... -----Original Message----- From: Internet Niue [mailto:stclair@niue.nu] Sent: Friday, June 15, 2001 2:49 PM To: suse-linux-e@suse.com Subject: Re: RE: Re: [SLE] Subject: extremely slow IDE-disk with SUSE Linux 7.0 Um, I notice that my drives are in the 16 bit mode....I can set them with hdparm -c 1 /dev/hda But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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But isn't -c 1 for PIO only? I didn't think it effects DMA operation.....
....it turns on the 32 bit flag. My DMA is already on..... Putting hdparm -c /dev/hda in the boot.local file seems to work fine by the way! Cheers Rich
Um, I notice that my drives are in the 16 bit mode....I can set them with
hdparm -c 1 /dev/hda
But how do you make them boot that way?
OK - it does look like the drive so far, but the unbuffered speeds look like DMA is turned off. Let's see if that helps:
hdparm -v /dev/hda will tell us how the drive is set up hdparm -c 1 -d 1 /dev/hda should enable DMA if it's off hdparm -tT /dev/hda will test speeds again
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-- Regards, Richard Saint Clair, Co-Founder Technical Manager Internet Users Society Niue Chairman, Pacific Island Chapter ISOC -------------------------------------------- stclair@niue.nu www.niue.nu Voice (68 3) 1157 Fax (68 3) 4237 Internet Service Provider, Niue Island -------------------------------------------- ISP/C, ISOC, APIA, NCOC, ISOCNZ, PICISOC, ARRL -------------------------------------------- Niue Island South Pacific 169 West 19 South
participants (4)
-
Anders Johansson -
Internet Niue -
Mads Martin Jørgensen -
Mark W. Knecht