Re: Number of devices that SCSI can support

[Matthew Wilcox <matthew@wil.cx>]

On Wed, Jan 09, 2008 at 09:05:52AM -0600, James Bottomley wrote:
> On Tue, 2008-01-08 at 19:22 -0700, Matthew Wilcox wrote:
> > On Tue, Jan 08, 2008 at 04:55:46PM -0800, Vinay Venkataraghavan wrote:
> > > Is there a limit on the number of devices that SCSI supports. In other words, I have a QLogic HBA card, and I am connecting to a SAN which has 64 targets. 
> > 
> > I've personally had over five hundred LUNs.  You shouldn't be hitting a
> > limit here.
> 
> I believe the largest test that's been run was the old OSDL CGL
> workgroup ... they went up to 4096.
> 
> However, LUN support depends on the driver and HBA parameters as well
> (some choose to have arbitrary limits).

I was using a qlogic HBA for my tests, so I don't think this is the
problem -- although the original poster claims to have 64 targets, and I
had only one target with 128 luns (attached 4 times).

-- 
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