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OS/2 Warp & SCSI Drives
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grandvide
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1. OS/2 Warp & SCSI Drives
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I'm not sure if others have had the same problem, but here goes...

I have 4 SCSI drives. The first two are on channel A, and the second two on channel B. Everything was working ok until I had to low level format the SCSI Drives on Channel B (I know your probably thinking 'what an idiot' at this point). The SCSI Bios still recognizes all of the drives, but once OS/2 is up the second pair aren't there. (They were E:\ and F:\)

What is the usual procedure in OS/2 for drives after they have been low level formatted?

I figure if there is some way to format them with a file system (like FAT) before OS/2 starts up, maybe OS/2 will recognize the extra drives.

Thanks...

Date: 30 Mar, 2004 on 01:52
Reaper
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2. Re:OS/2 Warp & SCSI Drives
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Well, Grandvide. This is easy.

The 2 drives on Channel B are now blank and ready to go. First thing to do, is to run fdisk from a command prompt or fdiskpm from the WPS. Use all the drive as a single partition or break them up into chunks. Your choice.

After fdisk is complete, you will have to reboot, so the new drive letters take effect.

After OS/2 is back up, you still can not use them. You have to format the new partitions.

Open a command prompt and format them. I use the following for my SCSI drives:

FORMAT x: /FS:HPFS /V:x_HPFS /L

If you need the other parameters, just type format /? to see the quick list or 'help format' for more information.

After the format, they are ready to go. Enjoy.l

Hope this helps.
Grim


I'm already Warp'ed! Do I need the software?
Date: 30 Mar, 2004 on 22:07
grandvide
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3. Re:OS/2 Warp & SCSI Drives
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Thanks Grim. You confirmed what I thought I had to do. For a while I was unable to format the third drive using fdisk. It turns out that I probably partitioned it to the wrong size. When I redid the partition to a size of 2047MB it worked perfectly. I guess there is some sort of size restriction that OS/2 can use at one time??? (The drive is a 2gig drive, just a few megs over 2,047mb anyways -so that the free space is barely anything..)

I haven't been able to figure this out yet, but it looks like fdisk can only see three hard drives, since I originally llf'ed the drives on channel b. That fourth drive isn't there. I'm hoping that I didn't kill the drive. The SCSI Bios shows that it is there, so I'm in the process of formatting it again to see if that works. Any other ideas?

Thanks!!

Date: 31 Mar, 2004 on 17:43
grandvide
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4. Re:OS/2 Warp & SCSI Drives
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Hey all,

I replaced the drive that I thought was bad. So I put this new drive in and the SCSI Bios picks it sure enough. But within OS/2 I ran fdiskpm and there are still only three drives there, not one of them being the new drive. Anybody have any more thoughts on this? I wondering if the SCSI Bios is ok or if OS/2 can scan for new hardware changes... I'm running out of ideas here...

thanks

Date: 01 Apr, 2004 on 19:34
ChrisR
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5. Re:OS/2 Warp & SCSI Drives
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A full hardware check (F5) at boot time...??
Date: 01 Apr, 2004 on 19:47
warpcafe
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6. Re:OS/2 Warp & SCSI Drives
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Hi,

did you check if the SCSI BIOS shows *all* drives? If not, you might be using a wrong SCSI ID on one of the drives... which leads to the 4th drive being "unaccessable" to OS/2 in the end.
Next: Is there any special parameter in the config.sys line which loads the SCSI driver? Something like "/A:1 /U:1" and other things maybe...? Might be a parameter to ignore the drive.
If you run FDISKPM, how many drives are shown at the top (that can be selected via tab key)?
Last question: What is the size of the drives ad how much partitions are on them each?

Greetings
Thomas

Date: 02 Apr, 2004 on 18:08
Kim
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7. Re:OS/2 Warp & SCSI Drives
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Agree with WarpCafe about checking the SCSI IDs so there is no conflict, while at it please also check the termination within the SCSI chain so you don't have double termination within the chain.

If you still have problem, try set up all the disks on one channel, suggestion would be channel a where both drives comes up as supposed.

Also when it comes to low level format a drive, it really really unsuall that one has to perform this kind of action. Only done when you have had a serious FS meltdown or something or if you are moving SCSI disks from one brand of controller to another where it sometimes can give you some headache accessing the drive.

/Kim

Date: 03 Apr, 2004 on 13:48
grandvide
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8. Re:OS/2 Warp & SCSI Drives
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Thanks for the responses. I'll get you all that information you requested about the configuration of the drives and system. I have a quick question though, I'm wondering about the differences between high level format and low level format on OS/2 and windows.
I guess to do a high level format on the drive you right-click on the drive and click on format. This operation takes like 10-15 seconds. I suspected since that happened so quickly that it really wasn't a high level format, and thats why I had went into the SCSI bios to format the drives.
Date: 06 Apr, 2004 on 17:27
Kim
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9. Re:OS/2 Warp & SCSI Drives
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grandvide (06 Apr, 2004 17:27):
I guess to do a high level format on the drive you right-click on the drive and click on format. This operation takes like 10-15 seconds. I suspected since that happened so quickly that it really wasn't a high level format, and thats why I had went into the SCSI bios to format the drives.

Well, try to compare the time in OS2 if you're doing a longformat... takes lot longer when using the /l when formating a partition, ie format e: /fs:jfs /l. I usually prefer to use the long format parameter so that I know that the drive is proper formatet. But, hey that's just me

Date: 06 Apr, 2004 on 18:04
warpcafe
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10. Re:OS/2 Warp & SCSI Drives
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grandvide (06 Apr, 2004 17:27):
I'm wondering about the differences between high level format and low level format on OS/2 and windows.
I guess to do a high level format on the drive you right-click on the drive and click on format. This operation takes like 10-15 seconds. I suspected since that happened so quickly that it really wasn't a high level format, and thats why I had went into the SCSI bios to format the drives.

Hi,

actually a low-level format is what the SCSI controller's BIOS does to the hard drive *independent of the operating system*. This is used to make the controller apply its drive geometry ("translation table") to the drive. The low-level format BTW does not deal with partitions/volumes like the other type of format.
The high-level formats by the operating systems are used "on top" of what comes out of the low-level format... to write a certain file system to a partition (or volume). So low-level is quite "hardware level" and the other formats (whether "long" or "short") are "operating-system-level" or "file system level" to be exact. I can't tell for the exact difference between OS/2's quick and long format - I guess it's due to whether surface check is done on the formatted partition/volume or not...

Greetings
Thomas

Date: 06 Apr, 2004 on 20:49
OS/2 Warp & SCSI Drives
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