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Date:      Wed, 22 Jun 2016 11:34:07 +0200
From:      Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org>
To:        "Eugene M. Zheganin" <emz@norma.perm.ru>
Cc:        freebsd-stable@FreeBSD.org
Subject:   Re: FreeBSD as iSCSI target and VMWare ESX
Message-ID:  <20160622093407.GA2108@brick>
In-Reply-To: <547bf99b-6425-2a99-b4e8-eaa7d88406ab@norma.perm.ru>
References:  <547bf99b-6425-2a99-b4e8-eaa7d88406ab@norma.perm.ru>

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On 0621T0835, Eugene M. Zheganin wrote:
> Hi.
> 
> Guys, does someone have experience with multiple LUNs on a target in 
> ctld ?  Recently I was installing ESX on a bunch of diskless hosts, 
> connected to FreeBSD ctld. I was organizing them inside one target, 
> multiple LUNs. As soon as the _count_ of LUNS went over 9, the whole 
> thing went crazy - ESX were unable to install, showing multiple errors 
> and not showing more than 10 LUNs from FreeBSD (and they were 11), and 
> even the last one created was unsuitable for installation. As soon as I 
> placed these "extra" LUNs inside the separate targets and LUN 0, 
> everything went back to normal. I understand completely this sounds like 
> a bad dream. I checked the VMWare limitations 
> (https://www.vmware.com/pdf/vsphere5/r55/vsphere-55-configuration-maximums.pdf) 
> - seems like it's supporting 256 LUNs  per server. I've also checked 
> their "iSCSI Best Practices Guide" and nowhere is says "use one LUN from 
> a target". It's not fair to suspect FreeBSD from the start, but this ML 
> is a much more frendlier place (at least I feel it to be so) - so, does 
> anyone have experience providing more than 9 LUNs from a target ? 
> Because I don't - prior to this I was providing one LUN from each 
> target, and it seems that I will continue to do so.

Do you see anything in the system logs, on either the ESX or FreeBSD side?




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