
Well,I found the new things.The technology is the deep bush,it seems.
The Mac I got has 2 hdd in SCSI interface.
To use SCSI interface,we should know about the system of SCSI.
PowerPC 7600/132 has two types of SCSI bus.
The one is inner SCSI that can communicate in the speed of 10Mbps,the other is outer SCSI that can communicate in the speed of 5Mbps.
And my cuty mac can use SCSI ID nunmber 0 to 7.
Well,SCSI number 0,normaly is used as boot HDD.
If you add next HDD in inner SCSI bus,you should change the other's SCSI ID number except number 0.
And normaly,CD device use ID number 3,so you can choose ID 1 or 2.
And,how to change the SCSI ID number to HDD?
That was most difficult my question.
I searched in google sevral hours,I could found the picture of HDD.
It needed jumper pin.I never knew that.
Well now I studied that,I could recognized the other HDD as SCSI ID number 2!
This page gave me advanced.
The problem is not solved perfectly.
I want to use these two HDD as one device.Two HDD are 5.2GB.The one has 1.2GB,the other has 4GB.
To install Linux,or I should say to use GUI interface on Linux,it should need over 4GB.
Raid technology can do the things.
In this case,there are two ways,I buy the raid SCSI PCI card,or I use soft-raid.
There are many things I should do...
But I get over!!
