[mythtv-users] Test drives with hdparm

Tim Draper veehexx at gmail.com
Thu Aug 11 14:15:39 UTC 2011


numbers look fine.

if you SSH in, do you see anything abnormal when running 'top' (CPU spikes
etc)

On 11 August 2011 14:52, Josu Lazkano <josu.lazkano at gmail.com> wrote:

> Hello list, I am having some pauses on MythTV, I read lots of post but
> I don't know why is happening. I read this morning that it will be
> about the disk transfer rate. So I check my drive.
>
> I have a Western Digital Green 2TB drive:
>
> Model Number:       WDC WD20EARS-00MVWB0
> Serial Number:      WD-XXXXXXXXXXXX
> Firmware Revision:  51.0AB51
> Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev
> 2.5, SATA Rev 2.6
>
> I format with XFS this way:
>
> mkfs.xfs -l size=64m -d agcount=4 -i attr=2,maxpct=5 -L mythfs /dev/sdb1
>
> I mount it thi way:
>
> # cat /etc/fstab
> /dev/sdb1 /mnt/myth xfs noatime,nodiratime,allocsize=512m      0       0
>
> I execute the test and this is the result:
>
> # hdparm -tT /dev/sdb
>
> /dev/sdb:
>  Timing cached reads:   1326 MB in  2.00 seconds = 662.71 MB/sec
>  Timing buffered disk reads: 368 MB in  3.00 seconds = 122.66 MB/sec
>
> Are thoose numbers correct? I need to configure it other way?
>
> I have no other machine to compare the result. I save the recordings
> and livetv on same drive.
>
> Thanks for your help and best regards.
>
> --
> Josu Lazkano
> _______________________________________________
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> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
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