What are the limits for ffs filesystems?
For ffs filesystems, the maximum theoretical limit is 8 terabytes (2G blocks), or 16TB for the default block size of 8K. In practice, there is a soft limit of 1 terabyte, but with modifications filesystems with 4 terabytes are possible (and exist). The maximum size of a single ffs file is approximately 1G blocks, or 4TB with a block size of 4K.
For ffs filesystems, the maximum theoretical limit is 8 terabytes (2G blocks), or 16TB for the default block size of 8K. In practice, there is a soft limit of 1 terabyte, but with modifications filesystems with 4 terabytes are possible (and exist). The maximum size of a single ffs file is approximately 1G blocks (4TB) if the block size is 4K.
” http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/install.html#FFS-LIMITS UFS2 is now standard in FreeBSD 5.x, however, and has considerably higher limits. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to “freebsd-questions-unsubscribe@freebsd.org” • Next message: Yaraghchi, Stephan: “RE: Trunking” • Previous message: Lowell Gilbert: “Re: Problems building simple custom Kernel” • In reply to: hal: “Max file system size” • Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] We are proud to have Web Hosting and Rack Housing from 9 Net Avenue Deutschland.
Better still, I’ll quote it: For ffs filesystems, the maximum theoretical limit is 8 terabytes (2G blocks), or 16TB for the default block size of 8K. In practice, there is a soft limit of 1 terabyte, but with modifications filesystems with 4 terabytes are possible (and exist). The maximum size of a single ffs file is approximately 1G blocks (4TB) if the block size is 4K. maxfilesize ———————————- 2.2.7 3.0 fs block size -stable -current works should-work ————- ——- ——– —– ———– 4K 4T-1 4T-1 4T-1 4+T 8K 32+G 8T-1 32+G 16T-1 16K 128+G 16T-1 128+G 32T-1 32K 512+G 32T-1 512+G 64T-1 64K 2048+G 64T-1 2048+G 128T-1 When the fs block size is 4K, triple indirect blocks work and everything should be limited by the maximum fs block number that can be represented using triple indirect blocks (approx. 1K^3 + 1K^2 + 1K), but everything is limited by a (wrong) limit of 1G-1 on fs block numbers. The limit on fs block numbers should be 2G-1. There are some
For ffs filesystems, the maximum theoretical limit is 8 terabytes (2G blocks), or 16TB for the default block size of 8K. In practice, there is a soft limit of 1 terabyte, but with modifications filesystems with 4 terabytes are possible (and exist). The maximum size of a single ffs file is approximately 1G blocks (4TB) if the block size is 4K. maxfilesize ———————————- 2.2.7 3.0 fs block size -STABLE -CURRENT works should-work ————- ——- ——– —– ———– 4K 4T-1 4T-1 4T-1 4+T 8K 32+G 8T-1 32+G 16T-1 16K 128+G 16T-1 128+G 32T-1 32K 512+G 32T-1 512+G 64T-1 64K 2048+G 64T-1 2048+G 128T-1 When the fs block size is 4K, triple indirect blocks work and everything should be limited by the maximum fs block number that can be represented using triple indirect blocks (approx. 1K^3 + 1K^2 + 1K), but everything is limited by a (wrong) limit of 1G-1 on fs block numbers. The limit on fs block numbers should be 2G-1. There are some bugs for fs block numbers nea
