On Thu, 08 Jun 2006 18:20:54 PDT, Mingming Cao said: > Current ext3 filesystem is limited to 8TB(4k block size), this is > practically not enough for the increasing need of bigger storage as > disks in a few years (or even now). > > To address this need, there are co-effort from RedHat, ClusterFS, IBM > and BULL to move ext3 from 32 bit filesystem to 48 bit filesystem, > expanding ext3 filesystem limit from 8TB today to 1024 PB. The 48 bit > ext3 is build on top of extent map changes for ext3, originally from > Alex Tomas. In short, the new ext3 on-disk extents format is: which implies matching changes to mkfs.ext2 and possibly mount.. > Appreciate any comments and feedbacks! Somebody else was recently discussing a set of patches to ext3 for extents+delalloc+mballoc patches - is this work compatible with that? Also, a pointer to the matching userspace patches would help anybody who's gung-ho enough to test the code....
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