Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!SIERRA.STANFORD.EDU!lacomb From: lacomb@SIERRA.STANFORD.EDU ("Lloyd J. Lacomb") Newsgroups: comp.sys.sgi Subject: disk for 2400T Message-ID: Date: 4 May 89 20:43:10 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 32 I'm having a little bit of a problem. Yesterday, someone came to me telling me that their one of the disks on their 2400T crashed. Sure enough the disk was getting power but it just wasn't turning. Most of the information is backed up so not much will be lost if we can put a new disk in. The problem is that even with the new prices on the 72 Mb disks from SGI, the paper work to get one would take a least a month which won't help if something is due in a week. What I thought might be possible was to take another ESDI 72 Mb drive from a PC in the lab and try to use that disk to replace the dead one in the IRIS. After getting all the hardware hooked up, I booted the system and the controller (or something) doesn't seem to recognize the second drive at all. It says something like: md0 Priam v170 and some more numbers (even though the drive says it's made by Vertex) md1 not installed (not sure about the wording) Nothing I've tried: mdfex(which doesn't seem to be documented anywhere,) mkfs, sgilabel, ... seems to work, All return some message about drive not found. The controller is an old one designed to handle only 72 Mb drives but I can't figure out what I need to do to get the system to find or recognize the drive. When I installed my disk, sent from SGI, I don't remember having similar problems, but that may be because they've already done something to the disk so the controller will recognize them. Does anyone out there know the procedure(I imagine some procedure must exist) for installing a disk on a 2400T. Thanks Lloyd LaComb lacomb@sierra.stanford.edu (Internet, bitnet)