berger@datacube.UUCP (08/24/87)
Has anyone seen the following problem when using a Sun 3/110 with a SCSI
disk:
If you have another bus master (other than the Sun CPU and SCSI
controler) that is VERY fast and is acessing the VMEbus as much as it
can on a continuous basis, we get messages about the SCSI disk having
problems reading and writing. Sometimes it crashes the Sun when it
can't swap.
We are trying to determine if the problem is with our bus controller
or is inherent in the Sun SCSI design. I'm wondering if the SCSI
system demainds a certain speed of response from the bus that the
arbitration logic can't meet if the bus is very loaded with requests?
Bob Berger
Datacube Inc. Systems / Software Group 4 Dearborn Rd. Peabody, Ma 01960
VOICE: 617-535-6644; FAX: (617) 535-5643; TWX: (710) 347-0125
UUCP: berger@datacube.COM, ihnp4!datacube!berger
{seismo,cbosgd,cuae2,mit-eddie}!mirror!datacube!berger