Date: Wed, 4 Apr 2012 09:28:01 -0600 From: "Kenneth D. Merry" <ken@freebsd.org> To: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Cc: "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org>, "gibbs@freebsd.org" <gibbs@freebsd.org>, "McConnell, Stephen" <Stephen.McConnell@lsi.com> Subject: Re: FreeBSD multi Lun detection query Message-ID: <20120404152801.GA70760@nargothrond.kdm.org> In-Reply-To: <B2FD678A64EAAD45B089B123FDFC3ED72B96EF8E7A@inbmail01.lsi.com> References: <B2FD678A64EAAD45B089B123FDFC3ED72B96EF8E7A@inbmail01.lsi.com>
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On Wed, Apr 04, 2012 at 11:03:04 +0530, Desai, Kashyap wrote: > Hi, > > Our test team has one test case, where they need to verify multi lun detection by FreeBS8.2 OS. > Here are the steps to reproduce. > > Step 1: Configured Multi-Luns in RBOD (DOTHILL) and map to controller which is booted with FreeBSD > Step 2: Issue the command "camcontrol rescan all" and "camcontrol dev" > > Expected Result: the command should display all the configured luns > > Actual Result: Only the first Lun is discovered > > Note: When we issue explicit scan using "camcontrol rescan bus:target:lun", it detects that specific lun. > > Query: How does FreeBSD detect multi luns ? Driver issue XPT_BUS_RESCAN and expect OS should detect both the luns. > Is there any limitation associated with multi lun in FreeBSD ? A couple of questions: - Do you have change 231716 in your version of the driver? The max_lun field of the path inquiry CCB was set to 0, which disabled multiple LUN scanning. I set it to 8, but in reality it needs to be set to the maximum LUN supported by the chip. - What LUN numbers do you have configured on the array? Ken -- Kenneth Merry ken@FreeBSD.ORG
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