vxfs_ap_assign_ckpt - assign an allocation policy to file data and metadata in a Storage Checkpoint
cc -I /opt/VRTS/include -L /opt/VRTS/lib
-l vxfsutil -ldl
int vxfs_ap_assign_ckpt(int fd, char *ckptname, char *datapol, char *metapol);
vxfs_ap_assign_ckpt() assigns the given allocation policies for data and metadata to the Storage Checkpoint specified by ckptname. To clear a policy assignment, specify a NULL pointer for the policy field to be cleared (either datapol or metapol). datapol is the name of the data policy that can be created with fsapadm(1M) or through the vxfs_ap_defined() API. metapol is the name of the metadata policy that can be created with fsapadm(1M) or through the vxfs_ap_define() API. The file descriptor fd must refer to a file to be operated on in the Storage Checkpoint.
To use this function, specify -l vxfsutil while linking.
Assigning or defining an allocation policy can fail because of a conflict with volume flags. The conflict detection attempts to detect all conflicts, but there is no guarantee that all conflicts will be detected.
This function is supported on Version 6 and later disk layouts. This API supports file system versions 6.0 and above.
vxfs_ap_assign_ckpt() returns zero on success, non-zero on failure.
The file system is not currently frozen.
One or more of the specified pointer arguments points to an illegal address.
The specified flags are invalid.
An I/O error occurred during the operation.
One or more of the specified policies does not exist.
There is no license installed to allow this operation.
This operation is not supported by the disk layout version of the specified file system. Use vxupgrade(1m) to enable this operation.
An I/O error occurred during the operation.
The effective user ID of the calling process does not have appropriate privileges to perform this operation.
The specified file system is mounted read-only.
To assign a policy to a Storage Checkpoint:
# vxfs_ap_assign_ckpt(fd, checkpoint_name data_policy, meta_policy);
vxfs_ap_assign_file(3), vxfs_ap_assign_fs(3), vxfs_ap_define(3), vxfs_ap_define2(3), vxfs_ap_remove(3), vxfs_ap_enforce_file(3), vxfs_ap_enforce_file2(3), vxfs_ap_enumerate(3), vxfs_ap_query(3), vxfs_ap_query2(3), vxfs_ap_query_ckpt(3), vxfs_ap_query_file(3), vxfs_ap_query_fs(3), vxfs_vol_add(3), vxfs_vol_deencapsulate(3), vxfs_vol_encapsulate(3), vxfs_vol_enumerate(3), vxfs_vol_remove(3), vxfs_vol_resize(3), vxfs_vol_stat(3)