Hard drive doesnt mount at startup (long)

[not Cereal]

2 computers..both 8600/300 with g3 upgrades. both have 36.7 IBM ultrastar drives. they are different model drives. they are SCSI drives. computer A: this is my machine. it has an IBM ultrastar 36XP as the audio drive. SCSI id2. this drive auto-mounts and works great - no problems. computer B: this is my friends machine. after i got my drive, he bought one also but OWC didnt have anymore 36XP, they sent a 73LZX DMVS36D. this drive WILL NOT MOUNT AT STARTUP!!! i have spent the better part of the last two months trying to figure out how to get this drive to mount. i have tried different jumper settings, scsi id's, and nothing will mount the drive automatically. i have to manually mount the drive everytime the machine reboots. i use SCSI probe, and select "mount drive" - the drive mounts, and i get a message that says "failed attempt. logical units not supported error code xxxxx" when we first hooked this drive up, it would not spin up until mounted. i enabled "auto spin" and the drive now spins when powered up. it just wont mount at startup. in apple drive setup, i have selected "mount at startup" in the configure volumes dialog. in scsi probe, i have enabled "mount all scsi discs at startup". yet the drive will not mount until manually mounted. ALSO, here is another interesting thing about this drive: when copying a protools session cdr to a another cdr, we first copied the cdr to the drive in question. it was a 450MB cdr. it took over 1.62GB to store this on the drive! we tried several cdr's in this way and they all took triple the data room on the ibm drive to hold the cdr data! then when burned back to cdr, the cdr was as originally sized, 450MB. i just really do not understand this and its driving me to the crazy house. i have scoured [url=http://www.apple.com]www.apple.com[/url] and [url=http://www.ibm.com]www.ibm.com[/url] as well as doing hundreds of searches on google for "drive won't mount" "mount at startup" etc. the drive wont mount, and it appears it is taking triple the data space to hold the data. i am out of ideas and i am going to give up unless SOMEONE CAN HELP!!! why does MY drive work flawlessly?

[T. Ehl]

well he should have gotten a mac and this would not be happening drives used to get sticky and you could thump them during the post and they would suddenly start working but i have not seen a drive do that in a while

[Salyphus]

Try DiskWarrior. Beware of Norton Utilities.

[not Cereal]

as far as i know, the only 8600/300 computers with g3/400 cpu's ARE macs :rolleyes:

[Gtoledo3]

[quote]Originally posted by T. Ehl: [b]well he should have gotten a mac and this would not be happening drives used to get sticky and you could thump them during the post and they would suddenly start working but i have not seen a drive do that in a while[/b][/quote]This is just classic. Give this guy the Musicplayer "Best Kneejerk Reaction Resulting In Asinine Comment of the Year" award.

[Rim]

Coaster, Can you try putting your friend's drive in your machine (making sure you select an appropriate SCSI ID for it)? If it's fine on your machine, then it's your friend's machine. If your machine has the same problem, then I'd think the drive is bad. The only thing I can think of why data would take so much space on the hard drive and not on a CDR is the hard drive's sector size. If the sector size is pretty large and the data consists of a lot of small files, you won't be getting an efficient use of the hard disk space. For example, if the drives sector size is 32Kb and all your files are say 8Kb or less, each file will use the whole 32Kb sector size, effectively quadrupling the space the data takes. OTOH, audio files tend to be large so I doubt this is the case.

[offramp]

Thinking out loud, here... Perhaps a trip to the 'net site of the drive manufacturer will reveal some driver updates and exact jumper settings. This happened to me, once, and a visit to IBM cleared it all up. Have you tried reformatting the drive with the utilities on the Mac OS install disk? Is there a drive termination or buss termination issue somewhere?

[not Cereal]

here is something new, after more tinkering tonight, i noticed that if i place SCSI PROBE into the control panels folder, the drive WILL mount at startup. thats good news! but the system has to load before the drive will mount, which means that one cannot place a backup system on that drive and boot into that. thats unfortunate. i have a spare system on my large drive, and i can boot into it just in case. on this other computer, you cannot do that thanks for helping me think this out. or add more to this post if you would like!

[timobrien]

I'm not sure if I remeber right (this was several years ago) but I had the same problem and I think I solved it by replacing the CMOS battery... Would only cost you a couple of bucks to try it.

[phaeton]

Coaster... Is this OS X? if so: check your /etc/fstab (it might be called mnttab or something goofy on an apple). Perhaps it's not being told to auto-mount on bootup there.