Messages in this thread | | | Date | Sat, 29 Nov 1997 16:36:43 -0800 (PST) | From | "Mr. James W. Laferriere Network Engineer" <> | Subject | Re: Triton DMA |
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Hello ALL,
On Sat, 29 Nov 1997, Rogier Wolff wrote: > Gerard Roudier wrote: > > On Sat, 29 Nov 1997, Rogier Wolff wrote: > > > Gerard Roudier wrote: > > > > On Sat, 29 Nov 1997, Rogier Wolff wrote: > > > > > In the beginning, parity was considered reasonable: Measurements ...snipped heavily... > > Agreed. Normally, even if the NCR chip is locked, the SCSI middle driver > > should ask the driver to reset the controller when a scsi abort request > > times out and all should restart. Something went wrong, perhaps at SCSI > > drivers level (including low-level one), perhaps in some other part of > > the kernel. Error recovery is very hard to test and it is IMO the > > weak point of the current Linux SCSI stack. > > Well, :-) May I suggest you take off the termination of your bus :-) > you might get a nice chance to test error recovery within a few > minutes :-) (*)
For a period of 6 weeks a system I managed had only one end terminated (passively at that) due to brain freeze, the system response & errors were negligable at minor to medium load IE: .5MB/s > 2MB/s . I can even re-acquire the witnesses if needed. > Roger. > > (*) Despite the smileys, I'm half serious. > > -- > ** R.E.Wolff@BitWizard.nl ** +31-15-2137555 ** http://www.BitWizard.nl/ ** > Florida -- A 39 year old construction worker woke up this morning when a > 109-car freight train drove over him. According to the police the man was > drunk. The man himself claims he slipped while walking the dog. 080897
Tia, JimL +-----------------------------------------------------------------------+ | James W. Laferriere - Network Engineer - babydr@nwrain.net | | System Techniques - 25416 - 22nd S. - Kent, WA 98032 | | Give me VMS -or- Give me Linux -but- only on AXP | +-----------------------------------------------------------------------+ |-> Linux-Vax Port, Now in Progress !YAY! there's Progress To Report <-| |-> Please See http://ucnet.canberra.edu.au/~mikal/vaxlinux/home.html <-| |-> Maintainer: Michael Still mikal@blitzen.canberra.edu.au <-| +-----------------------------------------------------------------------+
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