Messages in this thread | | | Subject | Re: FC & MULTIPATH !? (any hope?) | From | Brian Beattie <> | Date | 14 Jan 2002 11:53:07 -0800 |
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On Mon, 2002-01-14 at 07:24, James Bottomley wrote: > > > is there any hope of working combination of MULTIPATH with FC !? > > > > Yes. QLogic's newest 2200 HBA can do that. I don't know whether that is a > > possible solution for your problem though. > > To clarify: This solution is being pushed by IBM. Unless you have a FASt > array, you may not get help making it work from either IBM or Qlogic. You > also need the 5.x qlogic driver which you can download from the IBM website > (or from SuSE 7.3). > > > At the moment I am using raid option multipath but it's one way > > street, when one FC connection dies it successfully switches onto > > another FC connection but when that second dies aswell, mount point is > > in a limbo, no switching back to first FC connection. > > I've tested the qlogic and it will switch to the secondary and back again on a > FASt 200 HA. > > Although it was designed to work with the LSI Symplicity-4 AVT technology > (which is what IBM FASt's OEM), there's a high degree of probability that it > will also work with any array that the MD multipath driver also works for, so > good luck. >
I've been working with the multipath code. Trying to add functionality to it. While I have not yet looked at this particular issue, if there is interest I would be willing to see what can be done. I do not think it would be a big deal to add the functionality to reactivate a dead path. It should not be too hard to attempt to do so automatically.
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