search for: deduplicaiton

...The 512 byte write turns into a 128 KB write at the storage server (256x multiplication in write size). - To write that 128 KB block, the rest of the block needs to be read to recalculate the checksum. That is, a read/modify/write process is forced. (Less impact if block already in ARC.) - Deduplicaiton is likely to be less effective because it is unlikely that the same combination of small blocks in different zones/ldoms will be packed into the same 128 KB block. Alternatively, the block size could be forced to something smaller at the storage server. Setting it to 512 bytes could eliminate...