VERITAS File System 4.1 (HP OnlineJFS/JFS) Release Notes (December 2005)

VERITAS File System 4.1 Release Notes
Software Issues in Base-VXFS
Chapter 1 21
xargs: Input file is corrupt. : Incorrect byte order
Files should be created with the same locale encoding as the file system on which they
reside.
• Large Files Should Be Mounted Only on Systems With Sufficient Memory
When a file system is mounted, VxFS keeps certain data structures in the kernel. As the
size of the file system increases, the amount of data structures stored by VxFS also
increases. The file system typically keeps approximately 128 bytes per allocation unit
(32,768 file system blocks). This translates to a usage of 512K per 1 TB for an 8K block
size file system (4 MB per 1 TB for a 1K block size file system). Therefore, large file
systems must be mounted only on systems that have sufficient memory. The memory
requirements for mounting large file systems are shown in the tables below.
Table 1-4 Memory Usage for a File System With a 1K Block Size
File System
Size
128GB 1TB 8TB 64TB 256TB
Memory
Usage
1MB 4MB 32MB N/A N/A
Table 1-5 Memory Usage for a File System With a 2K Block Size
File System
Size
128GB 1TB 8TB 64TB 256TB
Memory
Usage
512K 2MB 16MB 128MB N/A
Table 1-6 Memory Usage for a File System With a 4K Block Size
File System
Size
128GB 1TB 8TB 64TB 256TB
Memory
Usage
256K 1MB 8MB 64MB N/A
Table 1-7 Memory Usage for a File System With an 8K Block Size
File System
Size
128GB 1TB 8TB 64TB 256TB
Memory
Usage
128K 512K 4MB 32MB 128MB