Cloudflare Improving Linux Disk Encryption Performance - Doubling The Throughput

[RahulSundaram]

Maybe this is a silly question... Why disk encryption on a server? I thought this was a protection for "data at rest", e.g. a powered off laptop, unmounted disk, etc

There are all sort of risks including protecting data from theft for a server

[swagg_boi]

Maybe this is a silly question... Why disk encryption on a server? I thought this was a protection for "data at rest", e.g. a powered off laptop, unmounted disk, etc

EDIT: Got several good answers to this, thanks

[edwaleni]

Makes me wonder what else is using some form of crypto offload that inline would replace and raise performance on?

[phoronix]

Phoronix: Cloudflare Improving Linux Disk Encryption Performance - Doubling The Throughput

Cloudflare employs Linux disk encryption on their servers and with some optimizations have made it at least two times faster throughput while also lowering the latency...

http://www.phoronix.com/scan.php?page=news_item&px=Cloudflare-Disk-Encryption-Perf