今天遇到一个客户的服务器mysql的日志文件达到了170G，一直以为redhat 版本的linux支持最大单个文件的大小不超过2G，原来这样理解是错误的。
| ext2/ext3 with 1 KiB blocksize | 16448 MiB (~ 16 GiB) | 2048 GiB (= 2 TiB) |
| ext2/3 with 2 KiB blocksize | 256 GiB | 8192 GiB (= 8 TiB) |
| ext2/3 with 4 KiB blocksize | 2048 GiB (= 2 TiB) | 8192 GiB (= 8 TiB) |
| ext2/3 with 8 KiB blocksize (Systems with 8 KiB pages like Alpha only) | 65568 GiB (~ 64 TiB) | 32768 GiB (= 32 TiB) |
| ReiserFS 3.5 | 2 GiB | 16384 GiB (= 16 TiB) |
| ReiserFS 3.6 (as in Linux 2.4) | 1 EiB | 16384 GiB (= 16 TiB) |
| XFS | 8 EiB | 8 EiB |
| JFS with 512 Bytes blocksize | 8 EiB | 512 TiB |
| JFS with 4KiB blocksize | 8 EiB | 4 PiB |
| NFSv2 (client side) | 2 GiB | 8 EiB |
| NFSv3 (client side) | 8 EiB | 8 EiB |