From: Levine, D. J. <Dan...@jh...> - 2005-04-05 16:48:09
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Mike, I couldn't get the stuff to find its way into /var/log/messages in 2 seconds or less, so I just used script instead. You'll find the information attached. I did not do a mount, but it normally succeeds. Again, the issue is I expect to get 2 devices that I can use with md or dm for improved performance/failover. Daniel J. Levine Section Supervisor Johns Hopkins University Applied Physics Laboratory 443-778-3952 240-228-3952 -----Original Message----- From: Mike Christie [mailto:mi...@us...]=20 Sent: Monday, April 04, 2005 5:07 PM To: Levine, Daniel J. Cc: lin...@li... Subject: Re: [linux-iscsi-devel] Multipathing with 4.0.2 Driver... Levine, Daniel J. wrote: > Hi, >=20 > =20 >=20 > I have looked through the various documentation sources available and=20 > have not been able to resolve my issue on the user list. There doesn't=20 > appear to be much action over there. Perhaps you can help. >=20 > =20 >=20 > I believe I have a relatively simple thing I want to accomplish. I have=20 > a SANRAD V-Switch 3000 that has 2 network connections for portals:=20 > 10.10.70.200 and 10.10.71.200. I would like to get to the point where > the 4.0.2 driver reports back two different paths to the same device. > I'll try to take it from there to get the multi-path part going. It=20 > appears that since the 4.1.10 version, the multi-path and failover=20 > configuration options have disappeared. we are using dm or md multipath only now, so by default we should=20 provide exactly what you want. However, I do not see their > replacement. I am not running an SLP server for iSCS target discovery. =20 > Perhaps this is required now? >=20 nope. > =20 >=20 > Anyway, I thought it would be as simple as having a an iscsi.conf like > this: >=20 > =20 >=20 > DiscoveryAddress=3D10.10.70.200 >=20 > DiscoveryAddress=3D10.10.71.200 >=20 > =20 >=20 > But all that seems to happen is discovery on 10.10.71.200. Could you send your log? If you also have ethereal handy send a trace of that too please. I can mount > the drive and use it and get better performance than I did under 4.1.10,=20 > but would really like to get 2 devices I can multi-path together with md=20 > (or something else that was recommended in the readme). >=20 > =20 >=20 > iscsi-ls only reports the one connection. I can change the order of the=20 > DiscoveryAddress lines and then I connect to the other port so they both=20 > appear to be working. I event tried something like: >=20 > =20 >=20 > DiscoveryAddress=3D10.10.70.200,10.10.71.200 >=20 > =20 >=20 > but that doesn't discover anything. >=20 > =20 >=20 > I assume I'm missing something quite basic here. I'd appreciate any=20 > help I can get at this point. >=20 > =20 >=20 > Thanks, >=20 > =20 >=20 > Daniel J. Levine >=20 > Section Supervisor >=20 > Johns Hopkins University >=20 > Applied Physics Laboratory >=20 > 443-778-3952 240-228-3952 >=20 > =20 >=20 |