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From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Lieven <pl@kamp.de>, Michael Tokarev <mjt@tls.msk.ru>,
	ronnie sahlberg <ronniesahlberg@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel <qemu-devel@nongnu.org>,
	Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] block/iscsi: use 16 byte CDBs only when necessary
Date: Tue, 17 Jun 2014 13:15:29 +0200	[thread overview]
Message-ID: <53A02351.8060900@redhat.com> (raw)
In-Reply-To: <539FDCAD.5060006@kamp.de>

Il 17/06/2014 08:14, Peter Lieven ha scritto:
>>
>
> BTW, while debugging a case with a bigger storage supplier I found
> that open-iscsi seems to do exactly this undeterministic behaviour.
> I have a 3TB LUN. If I access < 2TB sectors it uses READ10/WRITE10 and
> if I go beyond 2TB it changes to READ16/WRITE16.

Isn't that exactly what your latest patch does for >64K sector writes? :)

It's the reason why I haven't merged that patch yet.

Paolo

  reply	other threads:[~2014-06-17 11:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-04 13:47 [Qemu-devel] [PATCH] block/iscsi: use 16 byte CDBs only when necessary Peter Lieven
2014-06-04 14:00 ` ronnie sahlberg
2014-06-04 14:43   ` Peter Lieven
2014-06-04 14:54     ` ronnie sahlberg
2014-06-05  9:12   ` Michael Tokarev
2014-06-05  9:27     ` Peter Lieven
2014-06-17  6:14     ` Peter Lieven
2014-06-17 11:15       ` Paolo Bonzini [this message]
2014-06-17 11:37         ` Peter Lieven
2014-06-17 11:46           ` Paolo Bonzini
2014-06-17 11:50             ` Peter Lieven
2014-06-17 13:45             ` Peter Lieven
2014-09-01 15:21             ` Peter Lieven
2014-09-02 15:28               ` ronnie sahlberg
2014-09-02 18:14                 ` Peter Lieven
2014-09-02 19:30                 ` Peter Lieven
2014-09-03  8:09                   ` Peter Lieven
2014-09-03 12:31                     ` Stefan Hajnoczi
2014-09-03 13:13                       ` Peter Lieven
2014-09-03 14:17                     ` ronnie sahlberg
2014-09-03 14:18                       ` Paolo Bonzini
2014-09-03 14:48                         ` ronnie sahlberg
2014-09-03 19:29                           ` Peter Lieven
2014-06-04 15:31 ` Paolo Bonzini

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