Help with system in a safe state?

Hi
Can you please help me out here with how to determine whether a system is in a safe state for Question 1.2 and 1.3 using the steps defined in the book. I do understand what it means for a system to be in safe state it is only the steps that confuses me. I am totally out.
Thanks!

Try this smallest-possible-tip for starters, and ask again if it doesn't help. (I don't want to deprive you of the satisfaction of solving it, that's all).

Work == "Available"

(And then run the algorithm with that assumption.)

I'll check the forum again later today if that's utterly useless to you. It was just my own sticking point, that's all.

Hey,
I have taken forever to come back, I have just got into the net. I am trying to make sense with basic clue you gave me together with the info I get from the site "Unisa Chatter-operating system..." I will come back later for the feedback.
Thanks

Am I correct if I get Available = -999, from
1 6 5 0
- 1 6 5 8 and what would be the status of Available being a negative, what about the safe sequence

Please ignore the above 2 posts, I do not know what confused me, I did not use max_resource value.

Am I at the right track if I get Available = (2,8,5,4) for P1

Just in case: It's a mistake to think of "1234" as "one thousand two hundred and thirty-four". Rather try "[1,2,3,4]" I think it'll make a lot more sense if you do that.

You're working on a matrix, after all...

I have reworked my sense of understanding and my answers. Please verfy if I am at the correct track now for P0 and P4 Available = [1, 6, 6, 4] and [1, 12, 9, 6] respectively.

It's quite possible that you're now on a better track than I was. No offense, but I hope not.

I get a different value for the initial state, so it's no surprise our end states differ.

Probably handing around values would be the kind of thing that leads to us both sharing the mark, but perhaps you could tell me how you're calculating your initial vector? I can't really remember how I did mine (and it's too late if I've got it wrong, because it's already in), but perhaps I can either confirm that you're right (after which I can go somewhere quiet and cry), or pick up where you're going adrift?

At least you're now in vector and matrix form eh? I'm sure that in a pinch they'll give us some marks for that.