Home > Storage > PowerScale (Isilon) > Product Documentation > Data Efficiency > Next-Generation Storage Efficiency with Dell PowerScale Inline Data Reduction > Reading from a mixed F810 cluster
In the following mixed cluster scenario, a client connects to an H400 node and issues a read request for a compressed file housed on an F810 node pool. The H400 retrieves all the compressed chunks from the pertinent F810 nodes over the backend network. Since the H400 has no FPGA offload card, the decompression of the chunks is performed in software. Software compression uses a different DEFLATE-compatible algorithm to help minimize the performance impact of non-offloaded decompression. After the chunks have been decompressed, the file is reassembled and sent over Ethernet in uncompressed form to the requesting client.