Marcus Barczak <[EMAIL PROTECTED]> writes: > Just recently acquired a cast off Sun DDS3 SCSI tape drive. It's an > external unit and connected to my internal Adaptec 2940UW controller. > The problem i'm experiencing is anytime I try issuing a command with > mt for instance: > > % mt -f /dev/rst0 status > > The mt process will just hang, the process at that point is > completely un-killable implying that there's some kinda blocking read > system call happening. I've tried the tape drive on another machine > and it seems to work fine. On boot dmesg identifies the controller > and drive fine, and when booted with a tape loaded it acquires info > about the tape itself. > > -- dmesg output -- > ahc0 at pci0 dev 9 function 0 "Adaptec AHA-2940U" rev 0x00: irq 11 > scsibus2 at ahc0: 16 targets > st0 at scsibus2 targ 4 lun 0: <HP, C1537A, L706> SCSI2 1/sequential > removable > st0: density code 0x8c, variable blocks, write-enabled > > Has anyone seen this problem before or have any suggestions as to how > I may fix it?
I have had similar issues with my Hard Drive. It's a SCSI AIC-7901 Adaptec controller, ahd. I don't know how similar it is to yours. I see those same symptoms happen when the disk seems to receive a huge amount of disk activity all at once. Suddenly all the processes will hang and become unkillable, unless kill through another terminal or such. I was receiving a dump in my xconsole about the controller not pausing or something like that. I haven't managed to record the dump yet, but if I do, I'll see if I can't get it up here. I have attributed this particular problem to a hard drive failing, but I'm not sure now. At any rate, I have a new hard drive coming in, so I'll see if that fixes the problem. ---- DMESG ---- ahd0 at pci3 dev 5 function 0 "Adaptec AIC-7901A U320" rev 0x03: irq 11 ahd0: aic7901A, U320 Wide Channel A, SCSI Id=7, PCI 33 or 66Mhz, 512 SCBs scsibus0 at ahd0: 16 targets ahd0: target 0 using asynchronous transfers ahd0: target 0 synchronous with period = 0x8, offset = 0x3f(RDSTRM|DT|IU) ahd0: target 1 synchronous with period = 0x8, offset = 0x7f(RDSTRM|DT|IU) sd0 at scsibus0 targ 0 lun 0: <IBM-ESXS, ST336607LW FN, B25H> SCSI3 0/direct fixed sd0: 34715MB, 49855 cyl, 2 head, 713 sec, 512 bytes/sec, 71096640 sec total sd1 at scsibus0 targ 1 lun 0: <IBM-ESXS, DTN036W3UWDY10FN, S29C> SCSI3 0/direct fixed sd1: 34715MB, 36703 cyl, 3 head, 645 sec, 512 bytes/sec, 71096640 sec total wskbd0 at pckbd0: console keyboard, using wsdisplay0 sd2 at scsibus3 targ 1 lun 0: <Maxtor, OneTouch II, 023g> SCSI4 0/direct fixed sd2: 194481MB, 194481 cyl, 64 head, 32 sec, 512 bytes/sec, 398297088 sec total -- Aaron Hsu <[EMAIL PROTECTED]> Jabber: [EMAIL PROTECTED] <http://www.sacrificumdeo.net> "Extend beyond the Mortal . . . ." "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin
