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Sun QFS File System 5.3 Configuration and Administration Guide Sun QFS and Sun Storage Archive Manager 5.3 Information Library |
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Sun QFS File System 5.3 Configuration and Administration Guide Sun QFS and Sun Storage Archive Manager 5.3 Information Library |
2. About the Master Configuration File
4. Configuring the File System
5. Configuring a Shared File System
6. Administering File System Quotas
7. Advanced File System Topics
Using Daemons, Processes, and Tracing
Determining Which Processes Are Being Traced
Using the setfa Command to Set File Attributes
Selecting File Attributes for Files and Directories
Selecting a File Allocation Method and Stripe Width
Selecting a Striped Group Device
Configuring a Multireader File System
9. Configuring WORM-FS File Systems
11. Using QFS File Systems with SANergy (SAN-QFS)
When manipulating very large files, pay careful attention to the size of disk cache that is available on the system. If you try to write a file that is larger than your disk cache, behavior differs depending on the type of file system that you are using:
If you are using a non-archiving file system, the system returns an ENOSPC error.
If you are using an archiving file system, the program blocks, waiting for space that might never exist because the available disk space is insufficient to handle the request.
If you are operating within an archiving environment and your application must write a file that is larger than the disk cache, you can segment the file with the segment command. For more information about the segment command, see segment(1) in Sun QFS and Sun Storage Archive Manager 5.3 Reference Manual or see Using Segmented Files in Sun Storage Archive Manager 5.3 Configuration and Administration Guide.
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