Stripe (Block) Size

Software RAID always uses a block size of 64 kilobytes. (NAS devices running customized versions of Windows® may use a different size.) About 75% to 80% of hardware RAIDs also use 64 KB as the default unless overridden by the user during RAID setup. Other popular block sizes are 1024 KB, 128 KB, 32 KB, 16 KB and 8 KB. If the block size is not known, consider using our RAID recovery service. See "Chapter 20: RAID Recovery Services."

Figure 19.3: Block Size.