Questo contenuto non è disponibile nella lingua selezionata.
Chapter 16. Configuring NVMe over fabrics using NVMe/FC
The Non-volatile Memory Express™ (NVMe™) over Fibre Channel (NVMe™/FC) transport is fully supported in host mode when used with certain Broadcom Emulex and Marvell Qlogic Fibre Channel adapters.
16.1. Configuring the NVMe host for Broadcom adapters
You can configure a Non-volatile Memory Express™ (NVMe™) host for Broadcom adapters client by using the NVMe management command-line interface (nvme-cli
) utility.
Procedure
Install the
nvme-cli
utility:# yum install nvme-cli
This creates the
hostnqn
file in the/etc/nvme/
directory. Thehostnqn
file identifies the NVMe host.Find the World Wide Node Name (WWNN) and World Wide Port Name (WWPN) identifiers of the local and remote ports:
# cat /sys/class/scsi_host/host*/nvme_info NVME Host Enabled XRI Dist lpfc0 Total 6144 IO 5894 ELS 250 NVME LPORT lpfc0 WWPN x10000090fae0b5f5 WWNN x20000090fae0b5f5 DID x010f00 ONLINE NVME RPORT WWPN x204700a098cbcac6 WWNN x204600a098cbcac6 DID x01050e TARGET DISCSRVC ONLINE NVME Statistics LS: Xmt 000000000e Cmpl 000000000e Abort 00000000 LS XMIT: Err 00000000 CMPL: xb 00000000 Err 00000000 Total FCP Cmpl 00000000000008ea Issue 00000000000008ec OutIO 0000000000000002 abort 00000000 noxri 00000000 nondlp 00000000 qdepth 00000000 wqerr 00000000 err 00000000 FCP CMPL: xb 00000000 Err 00000000
Using these
host-traddr
andtraddr
values, find the subsystem NVMe Qualified Name (NQN):# nvme discover --transport fc \ --traddr nn-0x204600a098cbcac6:pn-0x204700a098cbcac6 \ --host-traddr nn-0x20000090fae0b5f5:pn-0x10000090fae0b5f5 Discovery Log Number of Records 2, Generation counter 49530 =====Discovery Log Entry 0====== trtype: fc adrfam: fibre-channel subtype: nvme subsystem treq: not specified portid: 0 trsvcid: none subnqn: nqn.1992-08.com.netapp:sn.e18bfca87d5e11e98c0800a098cbcac6:subsystem.st14_nvme_ss_1_1 traddr: nn-0x204600a098cbcac6:pn-0x204700a098cbcac6
Replace nn-0x204600a098cbcac6:pn-0x204700a098cbcac6 with the
traddr
.Replace nn-0x20000090fae0b5f5:pn-0x10000090fae0b5f5 with the
host-traddr
.Connect to the NVMe controller using the
nvme-cli
:# nvme connect --transport fc \ --traddr nn-0x204600a098cbcac6:pn-0x204700a098cbcac6 \ --host-traddr nn-0x20000090fae0b5f5:pn-0x10000090fae0b5f5 \ -n nqn.1992-08.com.netapp:sn.e18bfca87d5e11e98c0800a098cbcac6:subsystem.st14_nvme_ss_1_1 \ -k 5
NoteIf you see the
keep-alive timer (5 seconds) expired!
error when a connection time exceeds the default keep-alive timeout value, increase it using the-k
option. For example, you can use,-k 7
.Here,
Replace nn-0x204600a098cbcac6:pn-0x204700a098cbcac6 with the
traddr
.Replace nn-0x20000090fae0b5f5:pn-0x10000090fae0b5f5 with the
host-traddr
.Replace nqn.1992-08.com.netapp:sn.e18bfca87d5e11e98c0800a098cbcac6:subsystem.st14_nvme_ss_1_1 with the
subnqn
.Replace 5 with the keep-alive timeout value in seconds.
Verification
List the NVMe devices that are currently connected:
# nvme list Node SN Model Namespace Usage Format FW Rev ---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- -------- /dev/nvme0n1 80BgLFM7xMJbAAAAAAAC NetApp ONTAP Controller 1 107.37 GB / 107.37 GB 4 KiB + 0 B FFFFFFFF # lsblk |grep nvme nvme0n1 259:0 0 100G 0 disk
Additional resources
-
nvme(1)
man page on your system
16.2. Configuring the NVMe host for QLogic adapters
You can configure a Non-volatile Memory Express™ (NVMe™) host for Qlogic adapters client by using the NVMe management command-line interface (nvme-cli
) utility.
Procedure
Install the
nvme-cli
utility:# yum install nvme-cli
This creates the
hostnqn
file in the/etc/nvme/
directory. Thehostnqn
file identifies the NVMe host.Reload the
qla2xxx
module:# modprobe -r qla2xxx # modprobe qla2xxx
Find the World Wide Node Name (WWNN) and World Wide Port Name (WWPN) identifiers of the local and remote ports:
# dmesg |grep traddr [ 6.139862] qla2xxx [0000:04:00.0]-ffff:0: register_localport: host-traddr=nn-0x20000024ff19bb62:pn-0x21000024ff19bb62 on portID:10700 [ 6.241762] qla2xxx [0000:04:00.0]-2102:0: qla_nvme_register_remote: traddr=nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6 PortID:01050d
Using these
host-traddr
andtraddr
values, find the subsystem NVMe Qualified Name (NQN):# nvme discover --transport fc \ --traddr nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6 \ --host-traddr nn-0x20000024ff19bb62:pn-0x21000024ff19bb62 Discovery Log Number of Records 2, Generation counter 49530 =====Discovery Log Entry 0====== trtype: fc adrfam: fibre-channel subtype: nvme subsystem treq: not specified portid: 0 trsvcid: none subnqn: nqn.1992-08.com.netapp:sn.c9ecc9187b1111e98c0800a098cbcac6:subsystem.vs_nvme_multipath_1_subsystem_468 traddr: nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6
Replace nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6 with the
traddr
.Replace nn-0x20000024ff19bb62:pn-0x21000024ff19bb62 with the
host-traddr
.Connect to the NVMe controller using the
nvme-cli
tool:# nvme connect --transport fc \ --traddr nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6 \ --host-traddr nn-0x20000024ff19bb62:pn-0x21000024ff19bb62 \ -n nqn.1992-08.com.netapp:sn.c9ecc9187b1111e98c0800a098cbcac6:subsystem.vs_nvme_multipath_1_subsystem_468\ -k 5
NoteIf you see the
keep-alive timer (5 seconds) expired!
error when a connection time exceeds the default keep-alive timeout value, increase it using the-k
option. For example, you can use,-k 7
.Here,
Replace nn-0x203b00a098cbcac6:pn-0x203d00a098cbcac6 with the
traddr
.Replace nn-0x20000024ff19bb62:pn-0x21000024ff19bb62 with the
host-traddr
.Replace nqn.1992-08.com.netapp:sn.c9ecc9187b1111e98c0800a098cbcac6:subsystem.vs_nvme_multipath_1_subsystem_468 with the
subnqn
.Replace 5 with the keep-live timeout value in seconds.
Verification
List the NVMe devices that are currently connected:
# nvme list Node SN Model Namespace Usage Format FW Rev ---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- -------- /dev/nvme0n1 80BgLFM7xMJbAAAAAAAC NetApp ONTAP Controller 1 107.37 GB / 107.37 GB 4 KiB + 0 B FFFFFFFF # lsblk |grep nvme nvme0n1 259:0 0 100G 0 disk
Additional resources
-
nvme(1)
man page on your system