Examples of simple dd commands

Examples of simple dd commands

Bs is the unit, and count is the write range, as shown in the following example:

Example: use dd to clear vote disk and ocr (bare device)
$ Dd if =/dev/zero of =/dev/rrac_ocr1 bs = 8192 count = 17000
$ Dd if =/dev/zero of =/dev/rrac_vote1 bs = 8192 count = 17000


For example, use dd to clear the header information of a bare device.

$ Dd if =/dev/zero of =/dev/rlv_asm1 bs = 8192 count = 2560

In the unit of 8 k (8192 bytes), The erased value ranges from 8x2560 to 20 M.