(This is a joint proposal with Hannes Reinecke) Servers with NV-DIMM are slowly emerging in data centers but one key feature for reliability of these systems hasn't been addressed up to now, data redundancy. While it would be best to solve this issue in the memory controller of the CPU itself, I don't see this coming in the next few years. This puts us as the OS in the burden to create the redundant copies of data for the users. If we leave of the DAX support Linux' software RAID implementations (MD, device-mapper and BTRFS RAID) do already work on top of pmem devices, but they are incompatible with DAX. In this session Hannes and I would like to discuss eventual ways how we as an operating system can mitigate these issues for our users. Byte, Johannes -- Johannes Thumshirn SUSE Labs Filesystems jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
