Is it possible to get traditional LVM like functionality over Lustre based storage? My understanding is Lustre can aggregate storage OSTs to provide a single mount point. But the aggregate storage it provides can't be carved out into different logical volumes, is this correct? For eg, assume each OST is 8GB node1: OST1, OST2, MDT node2: OST3, OST4 Using *single* Lustre instance is it possible to provide two mount points with 16GB each? And ability to administratively change the storage available to each of those mount points, say instead of 16GB each to 20GB and 12GB. Something similar to lvextend, lvreduce. I presume you can achieve something like the above by creating two Lustre instances(running in different ports) and mount them separately as 16GB filesystem. But that seems too much overhead. Appreciate any insights on this area. thanks, Sridhar
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