7.193 V$DNFS_CHANNELS

V$DNFS_CHANNELS displays information about the Oracle process connections (channels) open to NFS servers.

Column	Datatype	Description
PNUM	NUMBER	Oracle process number
SVRNAME	VARCHAR2(255)	NFS server name
PATH	VARCHAR2(255)	Network path to the NFS server specified by IP address or by name
LOCAL	VARCHAR2(255)	Local path on the database host specified by IP address or by name
CH_ID	NUMBER	Direct NFS channel identifier
SVR_ID	NUMBER	Direct NFS server identifier
SENDS	NUMBER	Send operations over the channel since the last select
RECVS	NUMBER	Receive operations over the channel since the last select
PINGS	NUMBER	Ping operations over the channel since the last select
SPRECO	NUMBER	Reconnects for the channel on the same port since the last select, given that the reconnect occurred during the first series of reconnect attempts. If the first series of reconnect attempts fails and the reconnect process on that channel times out for 5 minutes, the next reconnect on that channel will not increment either the SPRECO or DPRECO columns, regardless of the port connected to.
DPRECO	NUMBER	Reconnects for the channel on a different port since the last select, given that the reconnect occurred during the first series of reconnect attempts. If the first series of reconnect attempts fails and the reconnect process on that channel times out for 5 minutes, the next reconnect on that channel will not increment either the SPRECO or DPRECO columns, regardless of the port connected to.
CON_ID	NUMBER	The ID of the container to which the data pertains. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data
RDMA	NUMBER	Indicates whether RDMA is enabled for the channel or not. Possible values: 0: RDMA is not enabled for the channel 1: RDMA is enabled for the channel
RDMA_CREDITS	NUMBER	The number of RDMA credits supported by the server
CLIENTPORT	NUMBER	The client port to which the channel is bounded
ACTIVE_SPEED	NUMBER	The active speed of the HCA card present (in Gb/second)
PEAK_FMR	NUMBER	The size of fast memory registration (FMR) memory registered by the channel (in bytes)
CURRENT_FMR	NUMBER	The current FMR memory registered (in bytes)
FMRREG_COUNT	NUMBER	The number of FMR memory registration calls for the channel

Note:

RDMA functionality is enabled only for the Exadata environment