Date: Thu, 05 Jan 2012 01:03:57 -0800 From: Julian Elischer <julian@freebsd.org> To: "Kenneth D. Merry" <ken@freebsd.org> Cc: current@freebsd.org, scsi@freebsd.org Subject: Re: CAM Target Layer available Message-ID: <4F05677D.7070602@freebsd.org> In-Reply-To: <20120105043934.GA37322@nargothrond.kdm.org> References: <20120105043934.GA37322@nargothrond.kdm.org>
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On 1/4/12 8:39 PM, Kenneth D. Merry wrote: > The CAM Target Layer (CTL) is now available for testing. I am planning to > commit it to to head next week, barring any major objections. > > CTL is a disk and processor device emulation subsystem originally written > for Copan Systems under Linux starting in 2003. It has been shipping in > Copan (now SGI) products since 2005. > > It was ported to FreeBSD in 2008, and thanks to an agreement between SGI > (who acquired Copan's assets in 2010) and Spectra Logic in 2010, CTL is > available under a BSD-style license. The intent behind the agreement was > that Spectra would work to get CTL into the FreeBSD tree. [...] > - Note that the ramdisk backend is a "fake" ramdisk. That is, it is > backed by a small amount of RAM that is used for all I/O requests. This > is useful for performance testing, but not for any data integrity tests. so, If I read this correctly, I should be able to export a fusion-io flash card with ctladm create -b block -o file=/dev/fio0 ?? > - To add a LUN with the block/file backend: > > truncate -s +1T myfile > ctladm create -b block -o file=myfile > ctladm port -o on >
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