08-04-2011
Multipathing in AIX
Hi,
I know the concept of multipathing, but would like to know how to configure multipathing in AIX.
or software/driver is by default present in AIX??????
How to find out wheather multipathing is configured in AIX?????
Regards,
Manu
10 More Discussions You Might Find Interesting
1. Solaris
We have loads of Sparc solaris 8 boxes. Each one has 2 physical interfaces and 2 virtuals set up for multipathing (See ifconfig below). Problem is that I cannot ping the qfe0 interface IP from the local machine. I can ping all other local interfaces, but not 10.161.19.5. I can ping it from... (3 Replies)
Discussion started by: tjlst15
3 Replies
2. Solaris
I have solaris 10 sparc. I installed a Qlogic hba card.
This card is connected on a brocade switch and the brocade is connected on 2 different controllers on a Hitachi disk bay.
I formated 2 luns. On my solaris system, i have 4 disk.
How to configure solaris 10 to fix the dual disk view.
... (4 Replies)
Discussion started by: simquest
4 Replies
3. Solaris
Hi,
I saw your post on the forums about how to setup IP multipathing. I wanted your help on the below situation .
I have 2 servers A and B . Now they should be connected to 2 network switches . S1 and S2.
Now is it possible to have IP Multipathing on each of the servers as follows ?
... (0 Replies)
Discussion started by: maadhuu
0 Replies
4. IP Networking
Hii Every One,
I am working on SUN server installed with Solaris-10,
1) I want to assign a vertual IP to a interface (ce1).
2) And with that vertual IP and one more interface (ce2), I want to do IP
multipathing.
So, kindely help me to achive above tasks by discribing... (2 Replies)
Discussion started by: prashantshukla
2 Replies
5. Solaris
Hi,
Basically the original configuration on my Solaris 9 server was two LUNs configured as Veritas file systems that were connected to a NetApp filer (filer1). These two LUNs are still configured on the server - but are not being used. They are there as a backup just in case the new... (0 Replies)
Discussion started by: sparcman
0 Replies
6. Solaris
Hai
we using emc storage which is conneted to M5000 through san switch.
we asign 13 luns but in server it is showing 22 luns.
i enable the solaris multipathing (MPxIO)
#more /kernel/drv/fp.conf in that file
MPxio-disable=no
#mpathadm list lu
it shows ... (2 Replies)
Discussion started by: joshmani
2 Replies
7. Solaris
Hello,
I turned on the server multipathing:
# uname -a
SunOS caiman 5.10 Generic_141444-09 sun4v sparc SUNW,T5140
stmsboot -D fp -e
And after a reboot the server, multipathing is not enable:
# stmsboot -L
stmsboot: MPxIO is not enabled
stmsboot: MPxIO disabled
# ls /dev/dsk... (4 Replies)
Discussion started by: bieszczaders
4 Replies
8. Red Hat
I have a server running redhat 5.5 and it has one SAN device presented to it as LUN9. How can I clean up the remaining entries. I cannot afford to interupt the service. Please assist.
# multipath -l
mpath0 (36000097000019260298953666633436) dm-11 EMC,SYMMETRIX
\_ round-robin 0
\_ 2:0:0:9 ... (2 Replies)
Discussion started by: Tirmazi
2 Replies
9. Red Hat
I have a couple of questions regarding multipath.
If I do vgdisplay vg01, I see it is using 1 PV: /dev/dm-13
If I type multipath -ll I see dm-9, dm-10, dm-11, dm-12, but do not see dm-13. Is my vg01 multipathed? How can I actually know for sure?
Secondly, let's say this time vg01 says... (1 Reply)
Discussion started by: keelba
1 Replies
10. UNIX for Advanced & Expert Users
I have a bit of an odd situation I would like to float out here and see if anyone has any ideas on this..
We are working on doing Disaster Recovery on a number of RHEL 7.4 systems. These are running on Cisco Blade Servers.
The mount point for /boot is on a Multipathed SAN LUN. There are a... (4 Replies)
Discussion started by: Overcast451
4 Replies
LEARN ABOUT LINUX
if_mpadm
if_mpadm(1M) System Administration Commands if_mpadm(1M)
NAME
if_mpadm - change operational status of interfaces within a multipathing group
SYNOPSIS
/usr/sbin/if_mpadm -d interface_name
/usr/sbin/if_mpadm -r interface_name
DESCRIPTION
Use the if_mpadm utility to change the operational status of interfaces that are part of an IP multipathing group. If the interface is
operational, you can use if_mpadm -d to detach or off-line the interface. If the interface is off-lined, use if_mpadm -r to revert it to
its original state.
When a network interface is off-lined, all network access fails over to a different interface in the IP multipathing group. Any addresses
that do not failover are brought down. Network access includes unicast, broadcast, and multicast for IPv4 and unicast and multicast for
IPv6. Addresses marked with IFF_NOFAILOVER do not failover. They are marked down. After an interface is off-lined, the system will not use
the interface for any outbound or inbound traffic, and the interface can be safely removed from the system without any loss of network
access.
The if_mpadm utility can be applied only to interfaces that are part of an IP multipathing group.
OPTIONS
The if_mpadm utility supports the following options:
-d interface_name Detach or off-line the interface specified by interface_name.
-r interface_name Reattach or undo the previous detach or off-line operation on the interface specified by interface_name. Unless
the -d option was used to detach or off-line the interface, this option will fail.
EXAMPLES
Example 1: Detaching an Interface
Use the following command to off-line or detach the interface. All network access will failover from hme0 to other interfaces in the same
IP multipathing group. If no other interfaces are in the same group, the operation will fail.
example% if_mpadm -d hme0
Example 2: Reattaching an Off-line Interface
Use the following command to undo the previous operation. Network access will failback to hme0.
example% if_mpdadm -r hme0
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Unstable |
+-----------------------------+-----------------------------+
SEE ALSO
ifconfig(1M), in.mpathd(1M), attributes(5)
DIAGNOSTICS
off-line failed as there is no other functional interface available in the multipathing group for failing over the network access.
This message means that other interfaces in the group are failed over already or the multipathing configuration was not suitable for com-
pleting a failover.
off-line cannot be undone because multipathing configuration is not consistent across all the interfaces in the group.
This message means that some interfaces in the IP multipathing group are not configured consistently with other interfaces in the group,
for example, one of the interfaces in the group does not have an IFF_NOFAILOVER address.
SunOS 5.10 3 Sep 2002 if_mpadm(1M)