ProtoWhich
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When I dump the data from an Ultrium 3 tape's cartridge memory (the CM), and parse through it, I can see most of what I'm interested in about the tape, it's capabilities, it's manufacturer information, it's serial number, etc., all the physical stuff like sizes and speeds, pretty much everything.
What I don't see is any obvious spot for a VOLSER (other than on the tape itself, perhaps in a first record, I haven't yet checked the tape). And shouldn't the VOLSER contain as the last of it's 6 digits, the generation of the tape? So if it's Ultrium 3, that 6th digit would be a 3. I keep looking for that in the serial numbers. But I'm not finding it necessarily.
So is the VOLSER stored in the CM or is it only there if I want to put it there after reading the tape or after reading the barcode label myself? It's a standard thing of course, but I'm just trying to figure out where it is, since it's not really discussed in any of the technical reference documents that I have.
I guess until I get this question answered, I'll have to read it from the tape itself, but I know some people want to store it in the CM. Or is there some other kind of memory that's readable and maybe writeable (like the user section that can be written with 0x803 types of commands). The CM is normally 0x806.
I hope my question is clear - if not, please feel free to clarify as I pretty much need to know which fields on the tape and/or it's cartridge memory to read and write (having to do with the VOLSER). My serial number is 10 digits long. Has the number of digits increased since generation 1? Perhaps?
I read that it's in the Cartridge memory and that it should be in the dump I did of the 4096 bytes. I can find the reference that I read if need be.
What I don't see is any obvious spot for a VOLSER (other than on the tape itself, perhaps in a first record, I haven't yet checked the tape). And shouldn't the VOLSER contain as the last of it's 6 digits, the generation of the tape? So if it's Ultrium 3, that 6th digit would be a 3. I keep looking for that in the serial numbers. But I'm not finding it necessarily.
So is the VOLSER stored in the CM or is it only there if I want to put it there after reading the tape or after reading the barcode label myself? It's a standard thing of course, but I'm just trying to figure out where it is, since it's not really discussed in any of the technical reference documents that I have.
I guess until I get this question answered, I'll have to read it from the tape itself, but I know some people want to store it in the CM. Or is there some other kind of memory that's readable and maybe writeable (like the user section that can be written with 0x803 types of commands). The CM is normally 0x806.
I hope my question is clear - if not, please feel free to clarify as I pretty much need to know which fields on the tape and/or it's cartridge memory to read and write (having to do with the VOLSER). My serial number is 10 digits long. Has the number of digits increased since generation 1? Perhaps?
I read that it's in the Cartridge memory and that it should be in the dump I did of the 4096 bytes. I can find the reference that I read if need be.