Working with Advanced RAID 6 Layouts |
R-Studio allows you to create and process very complex custom RAID 6 layouts For example, let us create a RAID 6 with the following layout:
where PD is parity of data; PA is parity of all; RS is Reed-Solomon; Rows from 1 to 5 use two types of error correction: parity of data (xor) and Reed-Solomon. That is, row 1 uses blocks A1 and E1, row 2 uses blocks D2 and E2, and so on. Row 6 is used for error correction for columns. That is, column A uses block A6, column B uses B6, and so on. Parity of all is used for error correction.
or select Create Virtual Block RAID on the Create menu Check that the Apply changes immediately check box is clear on the Parents tab. This will prevent R-Studio from trying to start processing the RAID configuration until you specify it completely.
These objects may be hard drives, logical disks, or images. Check that the objects are correctly placed.
Disregard the Block order parameter.
You may enter either a block number, or an error correction block of the following types:
Note: You should specify an error correction block only when the correct sequence is selected on the RAID Sequences window. Using the keyboard: arrow keys to navigate, digit, and rs, pd, pa, u, i keys to enter the block order. Using the mouse: right-click the cell and select the number or parity from the shortcut menu. If the block table is too large, you better use the keyboard to enter the digits. For the rows: Select the required row sequence on the RAID Sequences window, select the cell on the RAID table, and enter the required value. R-Studio automatically generates those sequences when you add RAID parents. For the columns and arbitrary sequences: You need to create those sequences and add the respective blocks to it manually. To create a sequence: Click Add empty on the RAID Sequences window or select Create New Sequence on the shortcut menu on the Parents tab. To add a block to a sequence: Right-click the respective cell and select Add To Sequence on the shortcut menu on the Parents tab. To remove a block to a sequence: Right-click the respective cell and select Remove From Sequence on the shortcut menu on the Parents tab.
If R-Studio detects a valid file system on this RAID object, a partition object will appear on the Drives panel. The Description Files for RAID Configurations topic shows the RAID description file for this RAID configuration. |