One of my colleagues and I are trying to setup SMC-D between a RHEL 8
system and a z/OS system. More specifically:
* z/OS 2.4 is running on an LPAR on a z15.
* z/VM 7.1 is also running on a second LPAR on the same z15.
* RHEL 8.3 is running as a guest of the VM system, using kernel
version 4.18.0-240.1.1.el8_3.
We think the RHEL system is properly configured with a virtiual ISM
device. But transfer rates we're seeing via sftp running under smc_run
are no faster than native sftp runs. The terminal output below shows
more details about our environment and configuration. We would give our
thanks in advance for any hints or suggestions you folks can provide!
[root@zlinux4 Temp]# hostname zlinux4.phx [root@zlinux4 Temp]#
[root@zlinux4 Temp]# date Tue Dec 8 06:37:35 PST 2020 [root@zlinux4
Temp]# [root@zlinux4 Temp]# lspci 00:00.0 Non-VGA unclassified device:
IBM Internal Shared Memory (ISM) virtual PCI device [root@zlinux4 Temp]#
[root@zlinux4 Temp]# ls -ld /sys/bus/pci/slots/* drwxr-xr-x 2 root root
0 Dec 7 11:23 /sys/bus/pci/slots/00001018 [root@zlinux4 Temp]#
[root@zlinux4 Temp]# smc_rnics FID Power PCI_ID PCHID
Type PPrt PNET_ID Net-Dev
-----------------------------------------------------------------------------------------
1018 1 0000:00:00.0 07e1 ISM n/a
PNET1 n/a [root@zlinux4 Temp]# [root@zlinux4 Temp]#
smc_rnics -e 1018 Error: FID 1018 is already enabled [root@zlinux4
Temp]# [root@zlinux4 Temp]# ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu
65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: encf804:
<BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode
DEFAULT group default qlen 1000 link/ether 02:00:00:00:00:09 brd
ff:ff:ff:ff:ff:ff [root@zlinux4 Temp]# [root@zlinux4 Temp]# smc_pnet
[root@zlinux4 Temp]# [root@zlinux4 Temp]# smc_pnet -a PNET1 -I encf804
[root@zlinux4 Temp]# [root@zlinux4 Temp]# smc_pnet PNET1 encf804 n/a 255
[root@zlinux4 Temp]# [root@zlinux4 Temp]# smc_pnet -a PNET1 -D
0000:00:00.0 smc_pnet: Object exists [root@zlinux4 Temp]# [root@zlinux4
Temp]# smc_run sftp [email protected] [email protected]'s password:
Connected to [email protected]. sftp> quit [root@zlinux4 Temp]# smc_run
-d sftp [email protected] libsmc-preload: map sock to AF_SMC
[email protected]'s password: Connected to [email protected]. sftp> cd
Temp sftp> ls -l E* -rwxr-x--- ? 1050 0 429391872 Dec 1
13:14 EJES.V600.pax.Z sftp> get EJES.V600.pax.Z Fetching
/u/ericadm/Temp/EJES.V600.pax.Z to EJES.V600.pax.Z
/u/ericadm/Temp/EJES.V600.pax.Z
100% 410MB 29.9MB/s 00:13 sftp> sftp> quit [root@zlinux4 Temp]#
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