On 06/02/2016 04:47 PM, Christoph Anton Mitterer wrote:
... RAID (e.g. btrfs RAID or MD RAID) on top of dmcrypt devices? Any performance or stability issues with such setup?
If you put encryption on top of a RAID of N devices, your CPU will have to process one layer of encryption. If you put a RAID on top of N encrypted devices, your CPU will have to process N layers of encryption. But if you have enough cores and/or AES-NI, the latter might perform better. Benchmark to find out.
For stability, the kernel, device drivers, dm-crypt, LVM, btrfs, etc., need to function correctly under concurrent workloads. Choose your software accordingly.
David _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
