Re: Strange PEER error with Dani's 506 1.81 generic question

Yes Peter - my error completely on this one.

Peter Brown wrote:

Hi Mike


The "Dani Drivers" *Replace* the IBM drivers.

If you use these 2 lines

BASEDEV=DANIS506.ADD
BASEDEV=DANIATAPI.FLT

you do not need the IBM IDE drivers and should either REM those lines or delete them.


Until fairly recently I used scsi hard drives, U160/U320 hanging off an Adaptec 29160, and I used to preceed the above 2 lines with

BASEDEV=AICU160.ADD

I think I read somewhere that the order of the drivers is not important these days - possibly in an eCS ng - but old habits die hard :-)

Regards

Pete

Well, sometimes yes as to order of the drivers, but as I have still noticed, still sometimes no. So I'll hold the working order deal for the moment here just to be safe.

When I 'read' the docs on her latest release, I did notice that her ATAPI file system tool was paired with this release in the 1.8.0 combo. And that the second release of the 1.8.1 for here DaniS506.ADD build followed shortly on Hobbs, which I picked up with the ATAPI package. But I failed to understand that the two had to be used in combination with the ATAPI package in replacement of the IBM offerings. That the IBM code wouldn't work at all with her 1.8 level releases.

My error completely.

OK, now after at least a start at a better reading of the documentation, I'm even more concerned about how what I may face in how things are set up here and there on all the boxes around me in order to move forward to this level of her work.

First, a really large number of the systems around me are still SCSI systems which use not only SCSI hard drives, but also SCSI DAT drive tape backup systems, additional SCSI hard drives which can be plugged in, but are not normally there, in mobile drive trays; as well as, in some cases actual SCSI CD-RW units. I also use RSJ heavily for CD write and backup/CD cloning purposes - with temporary higher letter drive ghosting - on the SCSI stuff.

The only use there for the IDE interface is another CD or DVD device for read purposes. This major release also involves, as I note from the documentation, the 'normal' ability to present the IDE devices as SCSI devices. The inherent formula under which this IDE to SCSI interface is done assumes that a MASTER device on the IDE cable is given over to the SCSI (0) unit! The slave comes next. Thus one better be darned careful about setting up an IDE CD device as a MASTER on any cable! But that flies in the face about data I/O speeds, as well as the requirement, as I understand things, that the CD device has to be a MASTER to be used for boot purposes if you are using, for example, the IBM install CD-ROM disks, or a modified version of this technique for custom boot CD-ROM operations.

Yes, all kinds of varients as to whether or not SCSI criss cross operation is done can be controlled through command line changes in the CONFIG.SYS.

But .. also, we face BIOS setup and boot preference issues where, for example, the 'normal' boot order, for setup, core level maintenance, are first device, floppy diskette, second device CD ATAPI, and third device SCSI hard disk on Drive C: in my case.

As I see this, as I sort of now first relate to this, the only way to really be 'safe' in my use of all this is to force no offering of the IDE devices to SCSI use at all. Which may defeat the purpose of doing what Dani has worked hard at; the ability to use some of the available CD/DVD utilities with IDE level units as pseudo-'SCSI' devices. So real study is needed here in this case.

As well, in this version of Dani's file system work, auto-forcing of floppy diskette drive units from drive A: to drive B:, in order to get a 'required' CD boot device 'authenticity' as 'drive A:', could be a real disaster for the real last ditch ability to work with the floppy drive unit for boot purposes or backup and restore or cloning with DFSEE.

Second, in the case of the OS/2 laptop arena, I'm heavily using plug-in floppy diskette units for floppy diskette access, which are absolutely required for some parts of the backup and clone/restore operations with USB plug in hard drive drives. That with USB second hard drive connection through after boot re-discover operation for backup and restore or cloning with DFSEE here as well.

I've also been solidly able to actually boot the R40, R50 and T42 Thinkpads from the USB plug-in hard drive units, which also, as I see this, is going to need some serious research with this new level of Dani's code. Save this for secondary research.

As to the first issues here on the SCSI affairs. Am I right, in your opinion, to default the pair of these tools to no SCSI translation?

Thanks Pete!




--


--> Sleep well; OS2's still awake! ;)

Mike Luther
.

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