postmaster@mailcom.UUCP (Bernard Aboba) (08/19/88)
I have purchased a PL Infinity Drive, and am having severe problems with the 10 MB floppy media from Kodak. So far, one out of every 3 diskettes I've purchased has had bad sectors that make them unreliable. I don't know how Infinity drives lock out bad sectors (if they do), but my guess is that the drives assume perfect media, and for 10 MB removables, this isn't too likely. So far I've lost 4 diskettes, or a total of 40 MB of data, and I'm dispairing of the drive ever becoming the reliable backup media I purchased it to be. My suspicion is that this problem is very common among the new removable media. For example, PL took the Infinity I rigid 3.5" 10 MB Drive they marketed (much like Jasmine's MegaDrive) off the market because of the unreliability of media. Are there any Jasmine Infinity users out there who can share their experiences? It's my gut feeling that the problems are originating in the media, and not the drive, but I'm not 100% sure. For example, I find that I cannot boot an Infinity Drive when it is daisy chained to a SuperMac XP40 drive via SCSI cable. The "Welcome to Macintosh" logo comes up, and then starts shimmering wildly. If I hit the programmer's switch, then it will boot off the Infinity, and both drives will come up. I've had lots of trouble booting a PL30 drive alongside a SuperMac, too. --- * Origin: sun!sunncal!mailcom Palo Alto (415) 855-9548 (Opus 1:204/444) SEEN-BY: 204/444 -- ------------------------------------------------------------------------------ FidoNet: 1:204/444 UUCP: ...!sun!sunncal!mailcom!bernard INTERNET: sunncal!mailcom!bernard@Sun.COM US MAIL: Bernard Aboba, 101 First St. #224, Los Altos CA 94022
anson@spray.CalComp.COM (Ed Anson) (08/22/88)
In article <115.230C52E4@mailcom.UUCP> postmaster@mailcom.UUCP (Bernard Aboba) writes: > >I have purchased a PL Infinity Drive, and am having severe problems with >the 10 MB floppy media from Kodak. So far, one out of every 3 diskettes >I've purchased has had bad sectors that make them unreliable. I don't >know how Infinity drives lock out bad sectors (if they do) It's my understanding that the disk DRIVER is responsible for mapping out bac blocks. This looks like a software problem. > For example, I find >that I cannot boot an Infinity Drive when it is daisy chained to a >SuperMac XP40 drive via SCSI cable. Your problem could be the XP40. I have a SuperMac DF20 which is incompatible with Jasmine's DirectTape drive. There is some indication that SuperMac did some strange things in their SCSI design. Does anyone know anything about this? -- ===================================================================== Ed Anson, Calcomp Display Products Division, Hudson NH 03051 (603) 885-8712, anson@elrond.CalComp.COM