User guide

DataDirect Networks SFA™ OS 2.0.0 Release Notes Revision A1 | 14
app bind stack 32769 ioc 34560
app bind stack 32769 ioc 34561
app bind stack 32770 ioc 34560
app bind stack 32770 ioc 34561
app bind stack 32771 ioc 34560
app bind stack 32771 ioc 34561
Now, shut down and start up the VMs/stacks again using CLUI. After they boot up,
you can configure networking on the virtual machines.
• Suggested Ethernet Ordering in Virtual Machines for SFA12K-20E
For new installations, DDN recommends the following virtual machine Ethernet
ordering starting in SFA OS 2.0.0.
o VM eth0: virtual function interface associated with controller’s first port
o VM eth1: virtual function interface associated with controller's 2nd port
o VM eth2: user mode networking support (provides port 555x ssh functionality)
Ethernet interface numbers larger than eth2 may be associated with Mellanox cards
operating in 10G/40G mode.
Controller eth0 (and VM eth0) are meant to be connected to the customer network
and may also be used by DDN Solutions like GRIDScaler for network management.
Controller eth1 (and VM eth1) are reserved for DirectMon.
Starting with EXAScaler 1.6.1 and GRIDScaler 2.0.0, this naming and usage
convention is used and configured as part of the ISO installation process.
The SFA OS User Guide has more information on Ethernet interface configuration
for controllers and VMs.
• ConnectX3 HCA IB read and write performance drops on PCI bus 1 when the
message size is more than 128 KiB.
5.3 SFA12K and SFA10K
• When an SFA is upgraded from SFA OS v1.5.3 to v2.0.0.3, initiators running RHEL 5.x
may get I/O errors. These errors can occur during a small window of time (typically
less than 5 seconds) when the controller running v1.5.3 is preparing to reboot and
responds ‘Ready’ to a Test Unit Ready inquiry from the initiator. If the host
application re-issues the I/O, I/O will continue as normal.
• To improve failover time with RHEL 6.x and Qlogic cards, the following is
recommended to enable the QLogic driver to react quickly to a loss of path :
Qlogic driver: 8.04.00.06.06.0-k
Add the parameter ‘ql2xasynctmfenable=1’ to /etc/modprobe.d/modprobe.conf
Example line in modprobe.conf:
options qla2xxx ql2xfwloadbin=1 ql2xqfullrampup=15 ql2xasynctmfenable=1