On Wed, 9 Jan 2008, Kevin Anderson wrote: > If it is a MSA20, MSA30 or MSA500 - they won't work with GFS. Shared > SCSI bus isn't really shared, accesses lock the bus such that when one > node accesses the storage the other node is locked out.
But only temporarily, surely. The filesystem should expect some latency, and all I/O is eventually serialised somewhere. > GFS requires the ability to do shared concurrent access to the storage > devices. This probably explains the hangs you were seeing. I doubt it. Both nodes were still able to access the file system. I also think there that shouldn't be any disk I/O behind fcntl(). Am I wrong? --- Charlie -- Linux-cluster mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-cluster
