Displaying Shared Nic/Virtual Nic By Ethtool Command; Use Dedicated Nic; Use Shared Nic - Hitachi CB 520H A1 User Manual

Communication
source LPAR
configuration /
Guest OS
2
When Intel(R) PROSet connection monitoring function is disabled in Windows Server 2008
SP2 / Windows Server 2008 R2 / Windows Server 2008 R2 SP1
3
When OS standard teaming function is used in Windows Server 2012 or later Windows
Server

Displaying shared NIC/virtual NIC by ethtool command

• The displaying contents of shared NIC/virtual NIC by ethtool command
of Linux are as follows for both onboard and mezzanine card.
Supported ports
Supported link modes

Use Dedicated NIC

• When SR-IOV is enabled, a performance may degrade because
multiqueue operating in dedicated mode does not work.
For details, see the Hitachi Compute Blade Emulex Adapter User's Guide
for Hardware.
However, it cannot be changed in LP mode. If necessary, change it in
Basic mode.

Use Shared NIC

• Shared NIC function in which LPAR manager emulate the LAN controller.
Performance is influenced according to an environment such as use
situation of processor. In communication with an external network, the
difference of communication performance with a physical LAN controller
and the range of fluctuation of performance also become large as the
number of shares of a physical controller increases. Therefore use a
physical LAN controller properly according to requirement to be used,
such as environment and band width. When using many physical LAN
controllers or 10Gps high-speed physical LAN controllers, performance of
shared NIC may not appear as equivalent to a bandwidth.
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Communication destination LPAR configuration / Guest OS
Windows
Windows Server
Server
2008
2012
OS
Intel(R) Intel(R)
standard
1 2
PROSet PROSet
teaming
Table 10-5 Ethtool command
Item
Notes
RHEL
bonding bonding
active- balance-
3
backup tlb
Support
FIBRE
1000baseT/Full
bonding hbonding
balance- active-
alb backup
10-11