SOFTWARE RAID MONITOR LINUX LOG INSTALL
If mdadm command is not found,You have to install mdadm package using yum like below. Mdadm: Defaulting to version 1.2 metadata Your boot-loader understands md/v1.x metadata, or use Store '/boot' on this device please ensure that Mdadm: Note: this array has metadata at the start and
~]# mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/sdb1 /dev/sdc1 dev/sdb1 72 fd Linux raid ~]# fdisk -l /dev/sdcģ.Configure the desired RAID level.Here i am configuring RAID 1. I/O size (minimum/optimal): 512 bytes / 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes ~]# fdisk -l /dev/sdbĦ4 heads, 32 sectors/track, 512 cylinders Table.tableizer-table (1-512, default 512):Ĭhanged system type of partition 1 to fd (Linux raid autodetect)Ĭalling ioctl() to re-read partition table.Ģ.Verify the both disk flag status using fdisk command. Supported Software RAID Configurations on Linux: The mentioned RAID level are supported in Red Hat Linux and you can choose any RAID level according to your requirement. Using simple md commands, we can easily add and remove the disks from RAID. I have seen some of the environments are configured with Software RAID and LVM (Volume groups are built using RAID devices).
Software RAID is one of the greatest feature in Linux to protect the data from disk failure.We have LVM also in Linux to configure mirrored volumes but Software RAID recovery is much easier in disk failures compare to Linux LVM.
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