Troubleshooting

Duplicate
or multiple
management
port IP
addresses
are
appearing
(non-DHCP
host server
)
If DHCP
is not enabled, multiple storage arrays connecting to a
network will default to the same management IP address
, causing IP
address duplication errors. To fix this problem, add each storage array
to the network
individually and change its IP addresses to non-default
value
s before adding another storage array.
M
anagement port speed
settings
are incorrect
Always use auto
-negotiation when configuring the Ethernet
management
ports. In MD Storage Manager Physical pane, right click
on the RAID controller
module and select Configure > Management
Ports
and choose Auto-negotiate from the Speed and duplex mode
drop
-down menu.
M
anagement port
showing as
Disconnected
Use the ping command to contact the Ethernet management port.
Unless the ping command originates from a
management station on a
separate, non
-networked switch, it should indicate whether the port
is
connected or
disconnected.
Non
-default IP
addresses are
overriding
default IP
addresses
If you
are using DHCP and have configured static IP addresses
previously
, those static IP addresses will override the default
addresses.
To fix this issue, manually reconfigure the management
ports.
How do I access
management ports on
an
IPv6-enabled
network?
The Ethernet management ports on the
MD storage array are also
accessible using the IPv6 link local address
es determined by the MAC
address of the
port (unless it is has been disabled).
Default IP addresses
not auto
-configuring
If
the DHCP server does not respond, default IP addresses will auto-
configure
following a three-minute timeout. This timeout interval
starts
either when the RAID controller module boots up or a new
Ethernet
management port connection is established.
Can I use m
ultiple host
network i
nterface cards
(NICs) on same subnet
?
Dell recommends that you
do not configure more than one NIC per
host on the same subnet
. Multiple NICs on the same subnet can cause
IP address confusion, especially
in direct-attached configurations.
It is
always preferable to isolate management data traffic from storage
array
-to-host server traffic on separate subnets and multiple NICs. In
ad
dition to avoiding performance slowdowns, this configuration is
easier to manage and troubleshoot.
Having p
roblems with
VLAN
The Ethernet management ports on the MD
-series storage arrays do
not
support VLAN tagging. Make sure that tagging is disabled on the
network
switch for any port connected to the Ethernet management
port
(s).