On Wed, Nov 28, 2012 at 3:21 AM, Andrew Holway <[email protected]>wrote:
> http://ceph.com/ Ceph is a distributed object-store (RADOS) with interfaces for various upper levels including a POSIX-interface (also called ceph). A couple of nice features include automated replication (three by default) and objects are distributed using CRUSH rules which can take into account failure domains (RAID controller, host, rack, row, etc.). The servers are all userspace so no major kernel dependencies (except for syncfs support). They are working on distributed metadata servers, but they are not recommended yet. Some metadata operations are really fast, such as du, compared to Lustre for example. So far, it only uses Sockets (TCP) and does not have direct support for Verbs (IB or RoCE). Scott
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