Question about multiple partitions.

Hi guys Yesterday I got my MacBook Pro 13”. This is my first Mac. So I’ve some few questions. If anybody answer those, then it’ll be very helpful to me.
It’s come with Snow Leopard on one single partition.
From my previous experience, I’ve learnt that, OS and personal data put in a single partition is not a good idea. If I need to clean install the OS then I’ve to format the full partition and then my other data will be lost. So it’s better to have separate partitions, if I’ll have to format the OS partition then others partition and their data will be intact.
So is it ok to have few partitions on OS-X? Like C: D: E: in Windows?
My hard disk is 250GB so I’ve plane to divide it into 3 parts. 1st one is for OS. 2nd one and 3rd one are for others staff. So I have to do it while I clean install the OS. What file format should I use for them? Do I have to mount them to specific name?

adnansanni wrote:
It’s come with Snow Leopard on one single partition.
From my previous experience, I’ve learnt that, OS and personal data put in a single partition is not a good idea. If I need to clean install the OS then I’ve >to format the full partition and then my other data will be lost.
I would not "waste" a partition to have my data on it. There probably are better uses for partitions. Above, the suggestion was made to have a good system backup. I agree. I would clone my internal volume to a partition on an external drive to accomplish this result. You can use Disk Utility, Carbon Copy Cloner, or SuperDuper, for example, to clone.
So it’s better to have separate partitions, if I’ll have to format the OS partition then others partition and their data will be intact.
As indicated, I don't think that doing so is better. But, I don't understand the rest of what you say above.
So is it ok to have few partitions on OS-X? Like C: D: E: in Windows?
Definitely yes. I would plan carefully what partitions I will need at this point. For example, would you also want to run Leopard on a partition? And, as mentioned above, would would want to run Windows on a partition? I run Sno, Leopard, and Win7 on separate partitions on my internal. There are ways of getting around the two partition "standard" with Windows on the second partition.
At this point, you probably will not need to erase and install to add several partitions. But, you will need to plan carefully if using Disk Utility to partition.
My hard disk is 250GB so I’ve plane to divide it into 3 parts. 1st one is for OS. 2nd one and 3rd one are for others staff. So I have to do it while I clean install the OS. What file format should I use for them? Do I have to mount them >to specific name?
As mentioned, at this point, you probably won't need to erase and install, but you need to decide, for sure, how many partitions you want and what sizes you want them to be if you want to do the partitioning with Disk Utility.

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    Hi,
    I am currently working with the rpd and a general doubt pops up... in the physical layer I have dimensions related, like for example Person, related to another dimension City and for example Age (with Foreign Key join):
    City -< Person
    Age -< Person
    So in order to have a true star schema in the BMM, I need to create a single logical table with these three physical tables, right? The question is how.
    I can add the physical tables as 3 logical table sources, or have one single logical table source, mapped to these three physical tables.
    What is the difference, if any? Can someone explain, please? I always use the first choice (multiple logical table sources, each of them mapped to one physical table), but is it better to have just one single logical table source?
    Thanks in advanced :)

    I'm not surprised that it works fine, but there is a chance that it can lead to some problems. Let me explain.
    You now have three LTS in your Logical dimension table Person.
    Person
    Age
    City
    When you create a report with columns from City and the Fact table, the BI Server will need to set up a join path between Fact and City table. There is no other option then via the physical Person table. So the BI Server decides for you to create a join between fact and person and person and city.
    When the City is joined to other tables in the physical layer then the BI Server might create another join path between Fact and City, because it thinks it is more efficient. This can lead to inccorect results.
    When you add the three physical tables to one LTS, you explicitly tell the BI Server, to create a join path from Fact to City table via the Person table.

  • Question about multiple listeners and vip addresses in rac.

    We have a 2 node rac cluster running 10.2.0.3 on rhel4 on the itanium platform. We have a need where we want to connect the 2 hosts up to another network temporarily by configuring an additional network interface on each server so that we can test some connections from a different network.
    My question is can you configure multiple listeners on the same server in which the newly added listener can be configured to service requets on the new network interface?
    Because it's rac would you need to configure an additional vip address? I am not sure that you can have multiple vip's on a server?
    Has anyone configured rac in such a way, any help is appreciated.

    can you configure multiple listeners on the same server in which the newly added listener can be configured to service requets on the new network interface?Yes, you can but you should not be doing this. Listener is a node specific resource and one listener can server multiple services. You actually can create multiple services within the database for different set of users and all can be registered to the same listener.
    Because it's rac would you need to configure an additional vip address? What do you mean by additional IP?
    You have installed 10g RAC where you have already configured virtual IPs. Why do you want to have additional one? node1 - static ip1, vip1, pvtip1
    node2 - static ip2 vip2, pvtip2
    total 6
    I am not sure that you can have multiple vip's on a server?Nothing to do with the server, they are based on public IP. Yes you can create multiples vip's based on same public IP. This is possible, But you do not need to do this in RAC environment.

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