Re: ISCSI Issues

[sumitsuri <sumit.suri@xxxxxxxxxxxxxxxx>]

hello,
we are also evaluating the ISCSI SAN. in our current setup we are having two
storage nodes and two cluster nodes.
storage nodes get replicated using DRBD and heartbeat for synchronization is
installed.

my problem is:

during failover testing to check the iscsi we stop the iscsi service on
cluster node. when we restart the service initiator service fails to
reconnect. My understanding is that the iSCSI initiator and iSCSI-target
negotiate the connection parameters through a connection ID which changes
every time we connect an iSCSI initiator service to a target.

do anyone know how we can do this without restarting the cluster node.



Mike Christie wrote:
> 
> cksrealm wrote:
>> Hi guys, we are currently evaluating a ISCSI SAN, we have two servers
>> running
>> RedHat Enterprise 4. All works well on one of the servers and when the
>> iscsi
>> initiator is run you can both see the disks in LVM as well as create a
>> filesystem on the devices. 
>> 
>> However on the other server although the output /var/log/messages shows
>> that
>> the devices are been seen and given a /dev/sd* name from that point of
>> things all seems to be well.
>> 
>> However here is the issue, you cannot see the disks in LVM or even run a
>> mkfs.ext3 on them as it says that there is no such device at all.
>> 
> 
> Do you know how to turn on scsi debugging and are you running with scsi
> as your root disk?
> 
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