Re: Mismatch between hdaprm and sdparm output

From: Arjan van de Ven
Date: Sun Aug 06 2006 - 20:40:16 EST

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On Mon, 2006-08-07 at 10:32 +1000, Keith Owens wrote:
> NEC Versa S5200 laptop with FUJITSU MHV2080B SATA disk. Kernel
> 2.6.16.21-0.13-smp (suselinux 10.1) using ata_piix. hdparm and sdparm
> give inconsistent results, which one should I believe? My main concern
> is write caching (XFS filesystem).

well write caching you should be able to benchmark easily.. does, say,
dbench or tiobench show any difference ?

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