I'be been experimenting with CephFS for funning KVM images (proxmox). cephfs fuse version - 0.87 cephfs kernel module - kernel version 3.10 Part of my testing involves running a Windows 7 VM up and running CrystalDiskMark to check the I/O in the VM. Its surprisingly good with both the fuse and the kernel driver, seq reads & writes are actually faster than the underlying disk, so I presume the FS is aggressively caching. With the fuse driver I have no problems. With the kernel driver, the benchmark runs fine, but when I reboot the VM the drive is corrupted and unreadable, every time. Rolling back to a snapshot fixes the disk. This does not happen unless I run the benchmark, which I presume is writing a lot of data. No problems with the same test for Ceph rbd, or NFS. -- Lindsay _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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