Date: Mon, 21 Dec 2009 19:08:52 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: freebsd-scsi@freebsd.org Subject: Re: iSCSI initiator and Dell PowerVault MD3000i Message-ID: <4B2FB9B4.7030401@quip.cz> In-Reply-To: <E1NMgJp-000587-VZ@kabab.cs.huji.ac.il> References: <E1NMgJp-000587-VZ@kabab.cs.huji.ac.il>
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Daniel Braniss wrote: [...] > it would be helpful if you can describe what you are trying to accomplish. To make it short: I am trying to connect FreeBSD 7.2 machine to storage array Dell PV MD3000i. MD3000i has 2 controllers to accomplish multipath fail-over in case of failure of anything in the path (controller, ethernet cable, switch etc.). FreeBSD machine is connected by 2 NICs (bce1 and bce3), one crosslink cable to controller 0, one crosslink cable to controller 1. As I read on the net, it seems possible to run it in this setup with Windows, Linux, VMware or XenServer. It seems not possible to use it this way on FreeBSD (with gmultipath) Example of commands and outputs I tried is available at http://pastebin.com/f2d9566c4 Links to MD3000i documentation of redundancy: Hardware Redundancy and Failover http://support.dell.com/support/edocs/systems/md3000i/en/2ndGen/HOM/HTML/using.htm#wp1091611 RAID Controller Failover Modes http://support.dell.com/support/edocs/systems/md3000i/en/2ndGen/HOM/HTML/using.htm#wp1093253 You can imagine my setup as the one on this page http://linux.dell.com/wiki/index.php/Products/HA/DellRedHatHALinuxCluster/Storage/PowerVault_MD3000i/Hardware Except I have just one node and no switches (directly connected) I think there is in-band management commands (management over iSCSI interface of the MD3000i) used to move virtual disks between controllers driven by connected host / driver in OS. I am not too experienced with iSCSI / SCSI, so please correct me if I am doing something wrong or I have wrong expectations. Miroslav Lachman
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