RHEL5/6 Installation Precautions

Beginner Linux, write a more messy disorder, to their own study record notes, if there are errors, please Daniel advice

1. The server generally has SCIC equipment, is the hard disk expansion slot, you can plug a lot of hard disk. The hard drive is plugged into the Scic card, and the Scic card is plugged into the motherboard, so you need to download the driver. The driver typically finds the vendor on the SCIC chipset and then downloads the appropriate driver.
2.The RHEL3 does not have SATA drivers, so you need to download the appropriate driver before installing. This means that no matter where your hard drive is plugged in, if the new piece is not driven, you will need to enter Linux DD to install the system.
linux ks  kickstart   Unattended Installation
3. Hard disk partition
ide device , expressed as HDXN    SCSI devices, expressed as SDXN    x A, B, C, D, to indicate that the secondary hard disk is the number of hard disks.
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Create custom Layout                                 &NB Sp                          ,         &NB Sp         Create a custom layout
Remove all partitions no selected drives and create default layout  Delete all partitions on the selected disk and create a default partition structure
Remove Linux partitions no selected drives and create default layoutdelete the Linux partition on the selected disk and create the default partition structure
Use free space on selected drives and create default layoutuse free space on the selected disk and create a default partition structure

In general, three partitions are required, namely/boot, swap, and/(root directory)
Swap when the memory is less than 1G, the partition size is twice times the size of the physical memory, and when the memory is greater than 1G, the swap partition size is equal to the memory size.
Partitioned tables can hold up to four primary partitions, and many more are logical partitions of extended partitions
RAID0 parallel Write, for example, there are two hard drives, the transmission of 100MB of things, is the existence of hard disk A50MB and hard disk B50MB, more for the transmission speed of the machine
RAID1 files are backed up, such as 2 pieces of 500G hard disk, b backup hard disk a data, the advantage is wasted hard disk space, a bit is data security.
RAID5 requires 4 hard drives to do RAID5, hard disk capacity will be reduced slightly, but a redundant hard drive is broken.
RAID6 can be redundant with two hard drives compared to RAID5.
4. Installation of the application
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Custom installation software, services
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If Oracle is installed, openfabrics must select Install.

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RHEL5/6 Installation Precautions