Create Storage Template - File system advanced panel options - for viewing or updating the storage template
This topic applies to Veritas Storage Foundation Add-on for Storage Provisioning 4.1.
Use this wizard panel to view or update the storage template file system advanced fields upon creation or update of the storage template. These parameters apply to running the mount and vxtunefs commands.
When you create a storage template based on Veritas File System (VxFS), you can set all the parameters. However, some of these parameters are not supported on certain platforms.
Table: Create Storage Template - Performance Tunables Tab
Enter the size of the intent log in the multiples of size byte.
Select an option to control the timing of flushing the VxFS intent log and other metadata to disk. This affects when operations are guaranteed persistent after a system failure.
Select the required mount I/O feature.
Select the required option. This implements an algorithm that allows read ahead to detect more elaborate patterns (such as increasing or decreasing read offsets, or multithreaded file accesses) in addition to simple sequential reads.
Enter the size of the allocation unit.
Enter a value for the initial extent.
Enter the maximum size of an extent.
Select the required option. For a file managed by a Hierarchical Storage Management (HSM) application, this option preallocates disk blocks before data is migrated back into the file system.
Enter a value for the maximum disk queue that is generated by a single file.
Enter a value to lower the number of dirty pages per file that the file system generates before writing them to disk.
Table: File Change Log Tunables Tab
Enter a value for the VxFS File Change Log (FCL) to keep records in the log.
Enter the maximum amount of space that can be allocated to the VxFS File Change Log.
Enter the time interval in seconds within which subsequent opens of a file do not produce an additional FCL record.
Enter the time, in seconds, that must elapse before the VxFS File Change Log records a data overwrite, data extending write, or data truncate for a file.
Table: Other Options Tab
Select an option. This lets the file system to be mounted explicitly.
Enter the preferred read request size.
Enter the number of parallel read requests of size read_pref_io that can be outstanding at one time.
Enter the preferred write request size.
Enter the number of parallel write requests of size write_pref_io that can be outstanding at one time.
Enter the maximum number of inodes to place on an inode aging list.
Enter the minimum size to qualify a deleted inode for inode aging.
Select an option to make the file system is large files capable.
See Creating a storage template using VxFS file systems using Veritas Storage Foundation Add-on for Storage Provisioning 4.1.
See Creating a storage template using volumes using Veritas Storage Foundation Add-on for Storage Provisioning 4.1.
See Updating a storage template using Veritas Storage Foundation Add-on for Storage Provisioning 4.1.