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Date:      Sat, 7 Aug 2010 17:12:14 +0200
From:      "Marek 'Buki' =?iso-8859-2?Q?Kozlovsk=FD?=" <dev@null.cz>
To:        freebsd-stable@freebsd.org
Subject:   Re: zpool - low speed write
Message-ID:  <20100807151214.GD28251@dev.null.cz>
In-Reply-To: <i3jhbs$o4f$1@dough.gmane.org>
References:  <201008042008.25679.alexvpetrov@gmail.com> <20100805041752.GA89285@icarus.home.lan> <201008051247.43260.alexvpetrov@gmail.com> <i3jhbs$o4f$1@dough.gmane.org>

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On Sat, Aug 07, 2010 at 01:51:21PM +0200, Ivan Voras wrote:
> On 5.8.2010 6:47, Alex V. Petrov wrote:
>=20
> > camcontrol identify ada2
> > pass2: <WDC WD10EADS-00M2B0 01.00A01> ATA-8 SATA 2.x device
>=20
> Aren't those 4k sector drives?

no, 4k drives have 'R' in type (ie. EARS and AARS models)

> To verify this hypotesis though, you will have to destroy the zpool, use
> gnop to create a virtual 4k sector drive for each physical drive and try
> testing everything again, using these new virtual drives.
>=20
> Unfortunately, if this is the case, it will be troublesome to find a
> production solution just yet. I have an idea but no time to try it.

Buki

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