Path: utzoo!attcan!uunet!husc6!bbn!uwmcsd1!ig!agate!ucbvax!mso.anu.OZ.AU!blair From: blair@mso.anu.OZ.AU (Blair Phillips) Newsgroups: comp.os.vms Subject: News posting to comp.os.vms Message-ID: <8805230621.AA13685@uunet.UU.NET> Date: 22 May 88 18:21:55 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 50 Path: mso!blair From: blair@mso.anu.oz (Blair Phillips) Newsgroups: comp.os.vms Subject: SI9900 disk controller dual-ported on SBI and Q-bus Message-ID: <67@mso.anu.oz> Date: 22 May 88 15:06:05 GMT Organization: Australian National University Lines: 41 Has anyone had experience with an SI9900 controller connected to an SBI host adapter and a Q-bus or Unibus adapter? We have a LAVC with a 785, a MicroVAX II, a VAXstation II and a VS2000. The 785 and the UV2 are both connected to an SI9900 controller with 4 disks on it. The 785 is the boot node for the cluster. The UV2 may be configured as a boot node some time in the future to add some redundency to the system. The SI9900 is connected to the 785 via an SBI host adapter and a patched copy of DRDRIVER. The disks appear as DRB0..3. On the MicroVAX, the Q-bus host adapter uses a driver supplied by SI, SIDRIVER. In the standard setup, the disks appear as SIA0..3. As we wanted to access the disks as dual-ported disks from both machines, I patched the SIDRIVER to change its name to DRDRIVER, and connected the disks as DRB0..3. I had hoped to serve the SI9900 disks from both the 785 and the UV2, however, all other systems see the UV2 served connections as SIB0, SIB1 SIB2 and SIB3, rather than DRB0..3. I do not understand where the SIB names are coming from. The device names in the DDB's are set to "DR", and, as far as I can tell, there are no references to "SI" anywhere in the I/O database. Does anyone know exactly how served device names are propagated to the cluster? The MSCP module is missing from the 4.6 fiche, and I believe it has changed from earlier versions. I couldn't work out how it was done in older versions, anyway. Please mail any replies to one of the addresses below, as news does not always get to this corner of the globe. Blair Phillips Computing Laboratory,Mt Stromlo & Sidings Springs Observatory Private Bag, Woden P.O. ACT 2606 Australia Ph. (Aust) (062) 88 1111 (Intl) + 61 62 88 1111 Acsnet,csnet: blair@mso.anu.oz.au Internet: blair%mso.anu.oz@uunet.uu.net PSImail: psi%(0)50526244003212::blair or psi%(0)505262440032::mso::blair SPAN: NSSDCA::PSI%MSSSO::BLAIR