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koyi 05-24-2004 05:38 AM

Recommendations for partition schemes
 
Hello, guys.
I am multibooting WinXP/FreeBSD/Linux from a 40GB HDD and storing my data on hdb which is 80GB. Recently I have come to this idea to swap the two disk, i.e. to have the OSes on the 80GB HDD and data on the 40GB.

So, does anyone have a suggestion on how should I partition these HDDs. This is what I have in mind now:

80GB HDD
-------------
1. Windows XP (20GB)
2. FreeBSD (20GB)
3. Linux (20GB)
4. Reserved for experimenting with other distros (20GB)

40GB HDD
-------------
1. FAT (20GB) (For sharing data)
2. Ext3 (20GB)
3. swap (~512MB)

What do you think? :)

trickykid 05-24-2004 06:43 AM

Looks okay to me, just all a matter of preference in the amount of space you want allocated for each, etc.

bruno buys 05-24-2004 07:17 AM

Won´t swap in the end of the second disk slow things down? I would put in the begining, like this:
swap 512
fat 20g
ext2 20g.

Curiosity: How do you boot these systems? Floppies?

jcookeman 05-24-2004 08:30 AM

If you are worried about performance with the two drives there are a few things to consider.

1. If you want max read/write performance across the two drives you need to make sure they are on two different IDE cables. Master and Slave drives have much poorer performance when attempting to read from one and write to the other.

2. Don't mix faster drives with slower ones on the same cable. For example, an UATA-100 and UATA-133 drive as master and slave. It will degrade the speed of the faster drive.

3. Put a partition that needs faster sequential access speed at the physical end of the drive, because the drive is larger at the end and therefore spinning faster. This would be the first partition.

4. Put a partition that needs faster random access speed at the physical beginning of the drive, because the heads do not have to move as far to access data randomly. This would be the last partition.

As far as the swap partion, you need to put it in the middle of the drive for maximum performance. The reason for this is because while the disk is working the heads are moving across the disk. Perhaps across multiple partions or within one. But, when it needs to swap it takes longer for the heads to move completely across the disk to swap and then back to work more on the data. So, the shortest distance the heads will ever have to move is to the middle of the disk.

koyi 05-24-2004 09:13 AM

wow you guys are coool~~~!!!
I have never known there are so many things to consider regarding HDDs... :P
But becoz I have two optical drives as well so I think the internal would look nicer with the 2 HDD connected with a single cable and another cable for the optical drives....
And, the two HD drives are both UATA100 so no drive is going to be downgraded luckily :)
And the swap partition will be created in the middle, I think...
Thanks for enlightening me, you guys are great :)

Quote:

Curiosity: How do you boot these systems? Floppies?
I boot them with GRUB installed on linux(and MBR... I dunno how to state it right but you should know what I mean... :) ). GRUB is the easiest Boot Loader I have ever found :) So try it out!


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