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The "CassandraHardware" page has been changed by JonathanEllis. The comment on this change is: mention file system limits. http://wiki.apache.org/cassandra/CassandraHardware?action=diff&rev1=7&rev2=8 -------------------------------------------------- As covered in [[MemtableSSTable]], compactions can require up to 100% of your in-use space temporarily in the worst case, free on a single volume (that is, in a data file directory). So if you are going to be approaching 50% or more of your disks' capacity, you should raid0 your data directory volumes. + On ext2/ext3 the maximum file size is 2TB, even on a 64 bit kernel. On ext4 that goes up to 16TB. Since Cassandra can use almost half your disk space on a single file, if you are raiding large disks together you may want to use xfs instead (16TB max on a 32 bit kernel, basically unlimited on 64 bit). +
