From: Bob Liu <bob.liu@oracle.com>
To: Juergen Gross <jgross@suse.com>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>,
xen-devel@lists.xen.org, paul.durrant@citrix.com,
jbeulich@suse.com, roger.pau@citrix.com
Subject: Re: [RFC PATCH] xen-block: introduces extra request to pass-through SCSI commands
Date: Wed, 02 Mar 2016 15:57:27 +0800 [thread overview]
Message-ID: <56D69CE7.2010904@oracle.com> (raw)
In-Reply-To: <56D698C7.9060505@suse.com>
Hi Juergen,
On 03/02/2016 03:39 PM, Juergen Gross wrote:
> On 01/03/16 19:08, Ian Jackson wrote:
>> Bob Liu writes ("Re: [RFC PATCH] xen-block: introduces extra request to pass-through SCSI commands"):
>>> One thing I'm still not sure about PVSCSI is do we have the same security issue since LIO can interface to any block device.
>>> E.g when using a partition /dev/sda1 as the PVSCSI-backend, but the PVSCSI-frontend may still send SCSI operates on LUN bases (the whole disk).
>>
>> I don't think you can use pvscsi to passthrough a partition such as
>> /dev/sda1. Such a thing is not a SCSI command target.
>
> It might be possible via the fileio target backend. In this case LUN
> based SCSI operations are ignored/refused/emulated by LIO.
>
Do you know whether pvscsi can work on top of multipath(the device-mapper framework) or LVMs?
Thank you!
Bob
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next prev parent reply other threads:[~2016-03-02 7:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 3:37 [RFC PATCH] xen-block: introduces extra request to pass-through SCSI commands Bob Liu
2016-02-29 8:12 ` Juergen Gross
2016-02-29 15:05 ` Konrad Rzeszutek Wilk
2016-02-29 15:34 ` Juergen Gross
2016-02-29 9:13 ` Paul Durrant
2016-02-29 14:55 ` Konrad Rzeszutek Wilk
2016-02-29 15:28 ` Paul Durrant
2016-02-29 15:35 ` Roger Pau Monné
2016-02-29 16:48 ` Konrad Rzeszutek Wilk
2016-02-29 16:56 ` Paul Durrant
2016-02-29 16:14 ` Ian Jackson
2016-02-29 16:29 ` Ian Jackson
2016-02-29 23:45 ` Bob Liu
2016-02-29 23:45 ` Bob Liu
2016-03-01 18:08 ` Ian Jackson
2016-03-02 7:39 ` Juergen Gross
2016-03-02 7:57 ` Bob Liu [this message]
2016-03-02 11:40 ` Ian Jackson
2016-03-02 11:46 ` Paul Durrant
2016-03-02 12:00 ` Juergen Gross
2016-03-02 12:28 ` Bob Liu
2016-03-02 14:44 ` Ian Jackson
[not found] ` <20160302172257.GC27821@char.us.oracle.com>
2016-03-03 11:54 ` Paul Durrant
2016-03-03 12:03 ` Ian Jackson
2016-03-03 12:25 ` Juergen Gross
2016-03-03 14:07 ` Konrad Rzeszutek Wilk
2016-03-03 14:19 ` Paul Durrant
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