DPM_ADDPOOL(3)
NAME
dpm_addpool - define a new disk pool
SYNOPSIS
#include <sys/types.h> #include "dpm_api.h" int dpm_addpool (struct dpm_pool *dpm_pool)
DESCRIPTION
dpm_addpool defines a new disk pool.
- dpm_pool
- contains the pool definition.
- struct dpm_pool {
- char poolname[CA_MAXPOOLNAMELEN+1];
u_signed64 defsize;
int gc_start_thresh;
int gc_stop_thresh;
int def_lifetime;
int defpintime;
int max_lifetime;
int maxpintime;
char fss_policy[CA_MAXPOLICYLEN+1];
char gc_policy[CA_MAXPOLICYLEN+1];
char mig_policy[CA_MAXPOLICYLEN+1];
char rs_policy[CA_MAXPOLICYLEN+1];
int nbgids;
gid_t *gids;
char ret_policy;
char s_type;
u_signed64 capacity;
u_signed64 free;
int nbelem; - };
- poolname
- specifies the disk pool name.
- defsize
- specifies the default amount of space reserved for a file (in bytes).
- gc_start_thresh
- specifies the minimum free space in the pool. If the percentage of free space goes below this value, the garbage collector is started. Default is 0.
- gc_stop_thresh
- specifies the percentage of free space in the pool above which the garbage collector is stopped. Default is 0.
- def_lifetime
- specifies the default time a space or volatile file is kept in the system (in seconds).
- defpintime
- specifies the default time a file is kept on a given disk (in seconds).
- max_lifetime
- specifies the maximum time a space or volatile file is kept in the system (in seconds).
- maxpintime
- specifies the maximum time a file is kept on a given disk (in seconds).
- nbgids is the size of the array of group ids gids.
- gids The disk pool is restricted to this set of gids unless the group
- gid is zero.
- ret_policy
- specifies the retention policy supported by the disk pool. It can be R (for Replica), O (for Output) or C (for Custodial).
- s_type indicates the type of space supported in the disk pool. It can
- be V (for Volatile), D (for Durable), P (for Permanent) or - (to accept any type).
- This function requires ADMIN privilege.
RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ERRORS
EACCES The caller does not have ADMIN privilege.
EFAULT dpm_pool is a NULL pointer.
EEXIST This pool exists already.
- ENOMEM Memory could not be allocated for storing the pool defini
- tion.
- EINVAL The length of poolname exceeds CA_MAXPOOLNAMELEN.
- SENOSHOST Host unknown.
- SEINTERNAL Database error.
- SECOMERR Communication error.