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DPM_MODIFYPOOL(3) DPM Library Functions DPM_MODIFYPOOL(3)

NAME

dpm_modifypool - modify a disk pool definition

SYNOPSIS

#include <sys/types.h>
#include "dpm_api.h"

int dpm_modifypool (struct dpm_pool *dpm_pool)

DESCRIPTION

dpm_modifypool modifies a disk pool definition.

contains the new 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;
};
specifies the disk pool name.
specifies the default amount of space reserved for a file (in bytes). If set to -1, the current value is unchanged.
specifies the minimum free space in the pool. If the percentage of free space goes below this value, the garbage collector is started. If set to -1, the current value is unchanged.
specifies the percentage of free space in the pool above which the garbage collector is stopped. If set to -1, the current value is unchanged.
specifies the default time a space or volatile file is kept in the system (in seconds). If set to -1, the current value is unchanged.
specifies the default time a file is kept on a given disk (in seconds). If set to -1, the current value is unchanged.
specifies the maximum time a space or volatile file is kept in the system (in seconds). If set to -1, the current value is unchanged.
specifies the maximum time a file is kept on a given disk (in seconds). If set to -1, the current value is unchanged.
is the size of the array of group ids gids. If set to -1, the current set is unchanged.
The disk pool is restricted to this set of gids unless the group gid is zero.
specifies the retention policy supported by the disk pool. It can be R (for Replica), O (for Output) or C (for Custodial). If set to 0, the current value is unchanged.
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). If set to 0, the current value is unchanged.

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

This pool does not exist.
The caller does not have ADMIN privilege.
dpm_pool is a NULL pointer.
The length of poolname exceeds CA_MAXPOOLNAMELEN or the number of gids is too big.
Host unknown.
Database error.
Communication error.
$Date$ LCG