![]() ![]() If one disk device is larger than another, the RAID device will be the size of the smallest disk.Maintains an exact mirror of the data written on each disk.Uses two or more disks with zero or more spare disks.Mirroring is an expensive solution because the system writes the same information to all of the disks in the array. ![]() If one drive fails, a mirror can satisfy I/O requests. RAID1 provides data redundancy and resilience by writing identical data to each drive in the array. Note: The free lab environment already has the MD utility installed. If not already connected, open a terminal and connect via ssh to each instance mentioned above. Note: When using the free lab environment, see Oracle Linux Lab Basics for connection and other usage instructions. additional block volumes for use with Linux Software RAID.ObjectivesĪny Oracle Linux 8 system with the following configurations: This tutorial will work with the MD utility ( mdadm) to create a RAID1 device with a spare and then address a disk failure. The Oracle Linux kernel uses the Multiple Device (MD) driver to support Linux software RAID and enable you to organize disk drives into RAID devices and implement different RAID levels.įor more information on these different RAID levels, see the Oracle documentation. Some RAID levels include redundancy, allowing the filesystem to survive some degree of device failure. This functionality allows multiple devices (typically disk drives or partitions of a disk) to be combined into a single device to hold a single filesystem. When completing your lab, substitute these values with ones specific to your cloud environment.īuild a Software RAID Array on Oracle Linux IntroductionĪ Redundant Array of Independent Disks or RAID device is a virtual device created from two or more real block devices. It uses example values for Oracle Cloud Infrastructure credentials, tenancy, and compartments.This tutorial is available in an Oracle-provided free lab environment. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |