The best replacement for ocfs2 is gfs.

The best alternatives to ocfs2 are rated as following:
★★★★★  gfs
★★★★  acfs
★★★★  gfs2
★★★★  asm
★★★  glusterfs
★  asm oracle
★  ocfs

Your alternative for ocfs2 is not listed? Suggest!
Speaking about ocfs2, one probably shouldn't forget about drbd.

Other search terms related to ocfs2 and their ratings are:
★★★★★ drbd
You have in mind a companion for ocfs2 and it is not yet here? Propose!



Google Trends

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ocfs2
gfs
acfs