On Aug 09, 2007 22:37 +0530, rishi pathak wrote: > Two more question: > Does lustre support block level locking also?
Lustre supports byte-locking, but in order to work with the linux page cache the locks have to be at least PAGE_SIZE (up to 64kB) in size. > Can the objects on OST be as small as a single block The objects can be as small as 1 byte, but the backing filesystem (ext3 currently) will allocate a whole block for this. > On 8/9/07, Anand Bisen <[EMAIL PROTECTED]> wrote: > > On Aug 9, 2007, at 9:24 AM, rishi pathak wrote: > > > I have got few questions: > > > 1. Does lustre support block level striping. > > Lustre supports object level striping across OST's, each OST could > > consist of a RAID device that would in turn do the block level > > striping across multiple disks. > > > > > > > 2.Can the objects on OST be blocks > > Since generally the devices used to store the data are block level > > devices (and not object disks) the objects on OST are at the lowest > > level stored as blocks. > > > > > > > > > > > -- > > > Regards-- > > > Rishi Pathak > > > > > > _______________________________________________ > > > Lustre-discuss mailing list > > > [email protected] > > > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss > > > > > > > -- > Regards-- > Rishi Pathak > National PARAM Supercomputing Facility > Center for Development of Advanced Computing(C-DAC) > Pune University Campus,Ganesh Khind Road > Pune-Maharastra > _______________________________________________ > Lustre-discuss mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
