Two ASM instance on one machine

Can we have two ASM instance on one machine ? My Manager is saying he is positive and I don't have anything to show him that we can not do that. Is there any link, document anything available for this ?
Thanks

Keyur,
This is an interesting question. I have seen references where in it clearly says that only one ASM instance is required per node irrespective of number of databases on a node. But, I haven't seen a clear indication, wherein it is mentioned that you can't start more than 1 ASM instances on a node. Therefore, I thought, I would give it a shot, by attempting to bring up a second ASM instance and here is what I get:
SQL> startup nomount pfile=init+ASM5.ora
ORA-00304: requested INSTANCE_NUMBER is busy
SQL>
If I shutdown my ASM1 (first ASM instance) then it allows me to bring up the ASM5 instance. This leads me to believe that you can't startup up more than one ASM instance on a single node.
Here is a note, which mentions that you need only one ASM instance per node. https://metalink.oracle.com/metalink/plsql/docs/ASM%20best%20practices.pdf
Thanks
Chandra

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    i have one gateway and i don't know why i have two persistent routes" it exist on windows 7,8,2012, on servers and on workstations, on virtual (on Hyper-V) and hardware.
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    in this example there is one network interface.
    PS C:\Windows\system32> route print
    ===========================================================================
    Interface List
    15...00 15 5d c8 3d 39 ......Microsoft Hyper-V Network Adapter #3
      1...........................Software Loopback Interface 1
    13...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
    ===========================================================================
    IPv4 Route Table
    ===========================================================================
    Active Routes:
    Network Destination        Netmask          Gateway       Interface  Metric
              0.0.0.0          0.0.0.0    192.168.200.1   192.168.200.77    261
            127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
            127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
      127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
        192.168.200.0    255.255.255.0         On-link    192.168.200.77    261
       192.168.200.77  255.255.255.255         On-link    192.168.200.77    261
      192.168.200.255  255.255.255.255         On-link    192.168.200.77    261
            224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
            224.0.0.0        240.0.0.0         On-link    192.168.200.77    261
      255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
      255.255.255.255  255.255.255.255         On-link    192.168.200.77    261
    ===========================================================================
    Persistent Routes:
      Network Address          Netmask  Gateway Address  Metric
              0.0.0.0          0.0.0.0    192.168.200.1  Default
              0.0.0.0          0.0.0.0    192.168.200.1  Default
    ===========================================================================
    IPv6 Route Table
    ===========================================================================
    Active Routes:
    If Metric Network Destination      Gateway
      1    306 ::1/128                  On-link
      1    306 ff00::/8                 On-link
    ===========================================================================
    Persistent Routes:
      None
    PS C:\Windows\system32>

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