Date: Sat, 19 Feb 2005 19:47:31 +0800 From: Rong-En Fan <rafan@csie.org> To: Xin LI <delphij@delphij.net> Cc: scsi@freebsd.org Subject: Re: Problem with mpt(4) and Infortrend RAID Message-ID: <20050219114731.GA97896@svm.csie.ntu.edu.tw> In-Reply-To: <1108808926.602.25.camel@spirit> References: <20050204102558.GA2001@svm.csie.ntu.edu.tw> <1108667040.656.20.camel@spirit> <20050218071746.GA41419@svm.csie.ntu.edu.tw> <20050218202901.GA71842@svm.csie.ntu.edu.tw> <20050219061517.GA92149@svm.csie.ntu.edu.tw> <1108803317.602.13.camel@spirit> <20050219092300.GA95182@svm.csie.ntu.edu.tw> <1108806312.602.17.camel@spirit> <20050219101214.GA96011@svm.csie.ntu.edu.tw> <1108808926.602.25.camel@spirit>
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On Sat, Feb 19, 2005 at 06:28:46PM +0800, Xin LI wrote: > Hi, > > ÔÚ 2005-02-19ÁùµÄ 18:12 +0800£¬Rong-En FanдµÀ£º > > On Sat, Feb 19, 2005 at 05:45:12PM +0800, Xin LI wrote: > > > Would you please try: > > > camcontrol tags da1 > > > > > > To see how many tags are actually allowed for the device, at the host > > > side? It comes to my mind that: > > > > I have already done -N 32, I remembered that original is 25x. > > Er... Pardon... You mean you have already done this before you got the > error message, or just have done that? just have done that. > > > Here: You have allowed only 32, and if the host has exceeded the > > > limitation, then something strange *may* happen. My bet is to decrease > > > > I just found the Infortrend's manual, it says that if > > hos exceeded this limit, the controller will not response > > and host *might* reduce the # later. Hmm, it seems match > > my situation. > > Yes, and this has generated problem for me, too. It should be good if > there's someone can tell us how to obtain the maximum tag depth allowed > by the infotrend device (I don't know if there is one, as I'm not a SCSI > guru:-) > > > > the tags allowed at host side, to something like 32: > > > > > > camcontrol tags da1 -N 32. > > > > > > It's also possible to modify cam_xpt.c to set the default number. > > > > Hmm, seems ok for me. My system's disk is ips(4) which does not > > use CAM layer. So, I can put camcontrol to rc. > > It's also possible to add the disk array quirk to the cam_xpt.c, too. > But that's of course too hacky IMO :-) Ya, I think so :) Regards, Rong-En fan
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