Hi Forum,
We are having weird issue, could you please help me to sort this out.
We ares testing all scnerios before putting the box into prod and one
of the scnerio is failing. Here is our problem
We have 4 network interfaces (eth2/eth3/eth5/eth6) for iscsi and eth2/
eth5 patched to one HP switch and eth3/eth6 are patched to second HP
switch. eth2 is the first interface for iSCSI so it becomes the
primary interface for the iSCSI subnet (192.168.42.190). If we disable
the eth2 port on HP switch then we cant reach array via eth2 but we
can reach aray through other intefaces
[root@nfs02 ~]# ping 192.168.42.190
PING 192.168.42.190 (192.168.42.190) 56(84) bytes of data.
^C
--- 192.168.42.190 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms
[root@nfs02 ~]# ping -I eth3 192.168.42.190
PING 192.168.42.190 (192.168.42.190) from 192.168.42.71 eth3: 56(84)
bytes of
da
ta.
64 bytes from 192.168.42.190: icmp_seq=1 ttl=255 time=0.285 ms
64 bytes from 192.168.42.190: icmp_seq=2 ttl=255 time=0.118 ms
^C
--- 192.168.42.190 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.118/0.201/0.285/0.084 ms
[root@nfs02 ~]# ping -I eth5 192.168.42.190
PING 192.168.42.190 (192.168.42.190) from 192.168.42.72 eth5: 56(84)
bytes of
da
ta.
64 bytes from 192.168.42.190: icmp_seq=1 ttl=255 time=0.392 ms
^C
--- 192.168.42.190 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.392/0.392/0.392/0.000 ms
[root@nfs02 ~]# ping -I eth6 192.168.42.190
PING 192.168.42.190 (192.168.42.190) from 192.168.42.73 eth6: 56(84)
bytes of
da
ta.
64 bytes from 192.168.42.190: icmp_seq=1 ttl=255 time=0.307 ms
64 bytes from 192.168.42.190: icmp_seq=2 ttl=255 time=0.094 ms
^C
--- 192.168.42.190 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.094/0.200/0.307/0.107 ms
But we cant perform discovery via eth3/eth5/eth6 and it keeps failing
[root@nfs02 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.42.190
-I eth3
iscsiadm: cannot make connection to 192.168.42.190:3260 (113)
iscsiadm: connection to discovery address 192.168.42.190 failed
^Ciscsiadm: caught SIGINT, exiting...
[root@nfs02 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.42.190
-I eth5
iscsiadm: cannot make connection to 192.168.42.190:3260 (113)
iscsiadm: connection to discovery address 192.168.42.190 failed
^Ciscsiadm: caught SIGINT, exiting...
[root@nfs02 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.42.190
-I eth6
iscsiadm: cannot make connection to 192.168.42.190:3260 (113)
iscsiadm: connection to discovery address 192.168.42.190 failed
^Ciscsiadm: caught SIGINT, exiting...
Here is the config
[root@nfs02 ~]# ifconfig eth2
eth2 Link encap:Ethernet HWaddr 00:21:28:C0:BB:D2
inet addr:192.168.42.70 Bcast:192.168.42.255 Mask:
255.255.255.0
[root@nfs02 ~]# ifconfig eth3
eth3 Link encap:Ethernet HWaddr 00:21:28:C0:BB:D3
inet addr:192.168.42.71 Bcast:192.168.42.255 Mask:
255.255.255.0
[root@nfs02 ~]# ifconfig eth5
eth5 Link encap:Ethernet HWaddr 00:1B:21:9D:87:0F
inet addr:192.168.42.72 Bcast:192.168.42.255 Mask:
255.255.255.0
[root@nfs02 ~]# ifconfig eth6
eth6 Link encap:Ethernet HWaddr 00:1B:21:9D:87:0C
inet addr:192.168.42.73 Bcast:192.168.42.255 Mask:
255.255.255.0
[root@nfs02 ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
0.0.0.0 163.189.222.33 0.0.0.0 UG 0 0
0 eth0
163.189.222.0 0.0.0.0 255.255.255.0 U 0 0
0 eth0
192.168.42.0 0.0.0.0 255.255.255.0 U 0 0
0 eth2
192.168.42.0 0.0.0.0 255.255.255.0 U 0 0
0 eth3
192.168.42.0 0.0.0.0 255.255.255.0 U 0 0
0 eth5
192.168.42.0 0.0.0.0 255.255.255.0 U 0 0
0 eth6
[root@nfs02 ~]# uname -a
Linux nfs02.drives.rta.nsw.gov.au 2.6.39.1 #1 SMP Thu Jul 14 15:55:52
EST 2011 x86_64 x86_64 x86_64 GNU/Linux
[root@nfs02 ~]# cat /etc/redhat-release
CentOS release 5.6 (Final)
[root@nfs02 ~]# iscsiadm --version
iscsiadm version 2.0-872
[root@nfs02 ~]# modinfo scsi_transport_iscsi
filename: /lib/modules/2.6.39.1/kernel/drivers/scsi/
scsi_transport_iscsi.ko
alias: net-pf-16-proto-8
version: 2.0-870
license: GPL
description: iSCSI Transport Interface
author: Mike Christie <[email protected]>, Dmitry Yusupov
<[email protected]>, Alex Aizman <[email protected]>
srcversion: 47617A77D87FB2745BA9CBD
depends: scsi_mod
vermagic: 2.6.39.1 SMP mod_unload modversions
parm: debug_session:Turn on debugging for sessions in
scsi_transport_iscsi module. Set to 1 to turn on, and zero to turn
off. Default is off. (int)
parm: debug_conn:Turn on debugging for connections in
scsi_transport_iscsi module. Set to 1 to turn on, and zero to turn
off. Default is off. (int)
We have Dell Equallogic PS5000 series array.
Please help me.
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