RAID (redundant array of independent disks; originally
redundant array of inexpensive disks) is a way of storing the same data
in different places (thus, redundantly) on multiple hard disks. By
placing data on multiple disks, I/O (input/output) operations can
overlap in a balanced way, improving performance. Since multiple disks
increases the mean time between failures (MTBF), storing data
redundantly also increases fault tolerance.
How to reload server with Raid-1 using mdadm raid
We need two identical hard disks for doing this. Let this be sda and sdb.
When reaching the partition menu we need to select custom layout
Follow the steps below for the first drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sda, set the Size to 1000MB (this is the size for /boot), select Fixed size, select Force to be a primary partition and click OK.
For the second drive the steps are similar but in the second pop-up select sdb:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sdb, set the Size to 1000MB (this is the size for /boot), select Fixed size, select Force to be a primary partition and click OK.
In the main overview we need to create a RAID device for /boot:
Click Create
From the popup choose RAID Device and click Create
From the popup set the Mount Point to /boot, select both sda1 and sdb1 and click OK.
Now we can continue creating the other partitions.
Start with the first drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sda, select Fill to maximum allowable size and click OK.
Second drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sdb, select Fill to maximum allowable size and click OK.
In the main overview we need to create a RAID device for the other partitions:
Click Create
From the popup choose RAID Device and click Create
From the popup I have set the mount point as / and continued with the installation.
Please let me know if you have any further queries.
How to reload server with Raid-1 using mdadm raid
We need two identical hard disks for doing this. Let this be sda and sdb.
When reaching the partition menu we need to select custom layout
Follow the steps below for the first drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sda, set the Size to 1000MB (this is the size for /boot), select Fixed size, select Force to be a primary partition and click OK.
For the second drive the steps are similar but in the second pop-up select sdb:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sdb, set the Size to 1000MB (this is the size for /boot), select Fixed size, select Force to be a primary partition and click OK.
In the main overview we need to create a RAID device for /boot:
Click Create
From the popup choose RAID Device and click Create
From the popup set the Mount Point to /boot, select both sda1 and sdb1 and click OK.
Now we can continue creating the other partitions.
Start with the first drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sda, select Fill to maximum allowable size and click OK.
Second drive:
Click Create
From the popup choose RAID Partition and click Create
From the popup select ONLY sdb, select Fill to maximum allowable size and click OK.
In the main overview we need to create a RAID device for the other partitions:
Click Create
From the popup choose RAID Device and click Create
From the popup I have set the mount point as / and continued with the installation.
Please let me know if you have any further queries.
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