Create software RAID on RHEL5 and build LVM Based on Software RAID

I haven't forgotten the operation for a long time. I have to practice it again to make my impression better.

These operations are performed on the vmwarevm. First install RHEL5 on/dev/sda. After installation, four hard disks are added:/dev/sdb,/dev/sdc,/dev/sdd, And/dev/sde, first look at the disk situation: [root@www.linuxidc.com ~] # Fdisk-l Disk/dev/sda: 15.0 GB, 15032385536 bytes 255 heads, 63 sectors/track, 1827 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sda1 * 1 13 104391 83 Linux/dev/sda2 14 1827 14570955 8e Linux LVM Disk /dev/sdb: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Bo Ot Start End Blocks Id System Disk/dev/sdc: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System Disk/dev/sdd: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System Disk/dev/sde: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System 1. create Soft RAID 1. create a raid partition [root@www.linuxidc.com ~] # Fdisk/dev/sdb The number of cylinders for this disk is set to 1044. there is nothing wrong with that, but this is larger than 1024, and cocould in certain setups cause problems with: 1) software that runs at boot time (e.g ., old versions of LILO) 2) booting and partitioning software from other OSs (e.g ., dos fdisk, OS/2 FDISK) Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4 ): 1 First cylinder (1-1044, default 1): Using default value 1 Last cylinder or + size or + sizeM or + sizeK (1-1044, default 1044 ): using default value 1044 Command (m for help): t Selected partition 1 Hex code (type L to list codes ): L 0 Empty 1e Hidden W95 FAT1 80 Old Minix be Solaris boot 1 FAT12 24 nec dos 81 Minix/old Lin bf Solaris 2 XENIX root 39 Plan 9 82 Linux swap/So c1 DRDOS/sec (FAT-3 XENIX usr 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT-4 FAT16 <32 M 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT-5 Extended 41 PPC PReP Boot 85 Linux extended c7 syr00006 FAT16 42 SFS 86 NTFS volume set da Non-FS data 7 HPFS/NTFS 4d QNX4.x 87 NTFS volume set db CP/M/CTOS /. 8 AIX 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility 9 AIX bootable 4f QNX4.x 3rd part 8e Linux LVM df BootIt a OS/2 Boot Manag 50 OnTrack DM 93 Amoeba e1 DOS access

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