On Fri, Dec 27, 2002 at 06:49:50PM -0700, Jessica Blank wrote: > I am having some weird, weird SCSI I/O errors. I'm running Debian/PowerPC > on an "Old World" (beige) Mac-- namely, a Power Mac 7300/180 (the 7300s > were sold overseas, and are uncommon in the USA; they are roughly on par > with the 7500s, I believe.. if not a bit higher-end) with a G3/220 CPU > upgrade. > > The system has worked fine for a long while. However, when I tried to > install some more SCSI drives into it (KNOWN WORKING drives), I get some > curious I/O errors which prevent me from using the system. The system only > seems to work properly when I use it with ONE hard drive. When I add more, > I get these problems. > > The poop: > > * First hard drive is a 1GB Quantum > * Second hard drive is a 4GB something-or-other > * Third hard drive is one of those big old "boat anchor"/"freight train" > 4GB drives. It fills the whole bottom bay of the Mac (twice as high as a > typical "modern" hard drive). It's at the end of the SCSI chain, so I > enabled the terminator on it. That is the only termination on the chain, > as far as I know. The information on this drive and the (many) jumper > options availble on it (nice drive!) is at: > http://www.seagate.com/support/disc/scsi/st15150n.html (yes, it's a > Seagate Barracuda ST15150N). > > The problem seems to happen whenever I'm working (reading/writing) on the > second or third drive. I get I/O errors, and kernelspam like this: > > Dec 27 19:36:35 fortitude kernel: EXT2-fs error (device sd(8,34)): > ext2_free_blocks: Freeing blocks not in datazone - block = 3717479526, > count = 1 > Dec 27 19:36:35 fortitude kernel: Remounting filesystem read-only > Dec 27 19:36:35 fortitude kernel: EXT2-fs error (device sd(8,34)): > ext2_free_blocks: Freeing blocks not in datazone - block = 620094437, > count = 1 > Dec 27 19:36:35 fortitude kernel: Remounting filesystem read-only > cks: Freeing blocks not in datazone - block = 2460472751, count = 1 > cks: Freeing blocks not in datazone - block = 1739398958, count = 1 > > For instance, whenever I try to mkisofs from a directory tree, after some > given percentage (it will get maybe 1/3 to 1/2 the way through a disc) it > will say "mkisofs: Input/output error. cannot read from (FILENAME)", and > then the drive begins going "click, click, click, click, click, click, > click," slowly and rhythmically (around 1.5-2 times a second, I'd say). > > At this point, the machine is essentially unusable, since the whole SCSI > bus seems out of whack; even trying to do an ls on a directory on the > FIRST drive screws up. Like this: > > fortitude:/home/shared/cds/cosmo# cd /var/log > fortitude:/var/log# ls -l > (SYSTEM JUST SITS THERE, RHYTMICALLY CLICKING AWAY) > > The kernel I use is 2.4.20; I compiled it myself. Other than this bug, it > works perfectly. > > Please, could someone help me? Is this a termination issue? Is this a > known bug? What in heck is wrong with my Mac?
Whenever I got that clicking noise, I always assumed the drive was a goner and replaced it. It works fine on another machine? -- *----------------------------------------------------------------* | Chris Tillman [EMAIL PROTECTED] | | To HAVE, GIVE all TO all (ACIM) | *----------------------------------------------------------------*
