Volker Dormeyer wrote: >Hi, > >I'm new to ReiserFS and I'm very interested in filesystem structures. >This morning I did my first tests on ReiserFS. >I found that ReiserFS uses an initial amount of space after creating >the filesystem. For example after filesystem creation on a 100MB >partition, ReiserFS seems to be use 32MB of disk space. Mkreiserfs >said that it will use 8MB for the journal. Can somebody tell me, for >what the rest of the 32MB is used (perhaps for the tree?). > >Thanks, >Volker > At the beginning ReiserFS marks as used first 16 blocks of device first. Then one block for super, one block for first bitmap block and 8192 + 1 blocks (default) for journal. Also one block occupied by root block and other bitmap blocks.
For my ReiserFS partition (14795376 1k-blocks and block_size == 4096) bitmap occupied 114 +1 blocks. Therefore we have: 16 + 1 + 1 + 8192 + 1 + 1 + 114 = 8326 blocks :) For block_size == 4096, we have ~34 Mb -- Yury Umanets IT Engineer of Priocom Corp. Phone: +380 44 2011959, ICQ: 55494590
