[gentoo-amd64] HDParm recommendations

[gentoo-amd64] HDParm recommendations

[Francisco Perez]

Can anyone point me to an article or some tips on my I should be setting 
in hdparm to tune my SATA setup to get some more thoroughput?  I have 4 
Seagate SATA drives plugged into an Escalade hardware Adapter running 
RAID 10.  Here's what I am currently getting from HDParm:

localhost ~ # hdparm -Tt /dev/sda

/dev/sda:
  Timing cached reads:   3244 MB in  2.00 seconds = 1621.90 MB/sec
  Timing buffered disk reads:  150 MB in  3.04 seconds =  49.40 MB/sec

localhost ~ # hdparm /dev/sda

/dev/sda:
  readonly     =  0 (off)
  readahead    = 64 (on)
  geometry     = 0/64/32, sectors = 500116226048, start = 0

I went through the man page, but its seems like everything there is 
geared towards IDE drives.(?)  Or does it all apply to SATA?  Thanks, I 
really appreciate it. :)

Frank
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Re: [gentoo-amd64] HDParm recommendations

[Francisco Perez]

Well, it looks like I was able to answer my own question, apparently 
hdparm doesn't do much in the way of SATA tunning because of the driver 
the kernel now uses to run SATA is the SCSI driver.

Frank

Francisco Perez wrote:
> Can anyone point me to an article or some tips on my I should be setting 
> in hdparm to tune my SATA setup to get some more thoroughput?  I have 4 
> Seagate SATA drives plugged into an Escalade hardware Adapter running 
> RAID 10.  Here's what I am currently getting from HDParm:
> 
> localhost ~ # hdparm -Tt /dev/sda
> 
> /dev/sda:
>  Timing cached reads:   3244 MB in  2.00 seconds = 1621.90 MB/sec
>  Timing buffered disk reads:  150 MB in  3.04 seconds =  49.40 MB/sec
> 
> localhost ~ # hdparm /dev/sda
> 
> /dev/sda:
>  readonly     =  0 (off)
>  readahead    = 64 (on)
>  geometry     = 0/64/32, sectors = 500116226048, start = 0
> 
> I went through the man page, but its seems like everything there is 
> geared towards IDE drives.(?)  Or does it all apply to SATA?  Thanks, I 
> really appreciate it. :)
> 
> Frank
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Re: [gentoo-amd64] HDParm recommendations

[Mark Knecht]

Right. Try sdparm instead:

lightning ~ # sdparm /dev/sda
    /dev/sda: ATA       ST3250823AS       3.03
Read write error recovery mode page:
  AWRE        1  [ sav:  1]
  ARRE        1  [ sav:  1]
  PER         0  [ sav:  0]
Caching (SBC) mode page:
  WCE         1  [ sav:  1]
  RCD         0  [ sav:  0]
Control mode page:
  SWP         0  [ sav:  0]
lightning ~ #

I don't know how to use it, but it's there... ;-)

- Mark

On 10/17/05, Francisco Perez <fperez@albrookdata.com> wrote:
> Well, it looks like I was able to answer my own question, apparently
> hdparm doesn't do much in the way of SATA tunning because of the driver
> the kernel now uses to run SATA is the SCSI driver.
>
> Frank
>
> Francisco Perez wrote:
> > Can anyone point me to an article or some tips on my I should be setting
> > in hdparm to tune my SATA setup to get some more thoroughput?  I have 4
> > Seagate SATA drives plugged into an Escalade hardware Adapter running
> > RAID 10.  Here's what I am currently getting from HDParm:
> >
> > localhost ~ # hdparm -Tt /dev/sda
> >
> > /dev/sda:
> >  Timing cached reads:   3244 MB in  2.00 seconds = 1621.90 MB/sec
> >  Timing buffered disk reads:  150 MB in  3.04 seconds =  49.40 MB/sec
> >
> > localhost ~ # hdparm /dev/sda
> >
> > /dev/sda:
> >  readonly     =  0 (off)
> >  readahead    = 64 (on)
> >  geometry     = 0/64/32, sectors = 500116226048, start = 0
> >
> > I went through the man page, but its seems like everything there is
> > geared towards IDE drives.(?)  Or does it all apply to SATA?  Thanks, I
> > really appreciate it. :)
> >
> > Frank
> --
> gentoo-amd64@gentoo.org mailing list
>
>

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Re: [gentoo-amd64] HDParm recommendations

[Francisco Perez]

I guess I'll just leave it as is, its my office fileserver so its 
probably not to bright to be messing with it anyway :-D
Frank

Mark Knecht wrote:
> Right. Try sdparm instead:
> 
> lightning ~ # sdparm /dev/sda
>     /dev/sda: ATA       ST3250823AS       3.03
> Read write error recovery mode page:
>   AWRE        1  [ sav:  1]
>   ARRE        1  [ sav:  1]
>   PER         0  [ sav:  0]
> Caching (SBC) mode page:
>   WCE         1  [ sav:  1]
>   RCD         0  [ sav:  0]
> Control mode page:
>   SWP         0  [ sav:  0]
> lightning ~ #
> 
> I don't know how to use it, but it's there... ;-)
> 
> - Mark
> 
> On 10/17/05, Francisco Perez <fperez@albrookdata.com> wrote:
> 
>>Well, it looks like I was able to answer my own question, apparently
>>hdparm doesn't do much in the way of SATA tunning because of the driver
>>the kernel now uses to run SATA is the SCSI driver.
>>
>>Frank
>>
>>Francisco Perez wrote:
>>
>>>Can anyone point me to an article or some tips on my I should be setting
>>>in hdparm to tune my SATA setup to get some more thoroughput?  I have 4
>>>Seagate SATA drives plugged into an Escalade hardware Adapter running
>>>RAID 10.  Here's what I am currently getting from HDParm:
>>>
>>>localhost ~ # hdparm -Tt /dev/sda
>>>
>>>/dev/sda:
>>> Timing cached reads:   3244 MB in  2.00 seconds = 1621.90 MB/sec
>>> Timing buffered disk reads:  150 MB in  3.04 seconds =  49.40 MB/sec
>>>
>>>localhost ~ # hdparm /dev/sda
>>>
>>>/dev/sda:
>>> readonly     =  0 (off)
>>> readahead    = 64 (on)
>>> geometry     = 0/64/32, sectors = 500116226048, start = 0
>>>
>>>I went through the man page, but its seems like everything there is
>>>geared towards IDE drives.(?)  Or does it all apply to SATA?  Thanks, I
>>>really appreciate it. :)
>>>
>>>Frank
>>
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>>gentoo-amd64@gentoo.org mailing list
>>
>>
> 
> 
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