On Wed, Oct 12, 2011 at 5:05 AM, Mike Christie <[email protected]> wrote:
> On 09/22/2011 12:02 AM, coec wrote:
>> Hi all
>>
>> I'm using RHEL 6.1 (fully patched, 2.6.32-131.12.1.el6.x86_64 with
>> iscsi-initiator-utils-6.2.0.872-21.el6.x86_64) on HP BL460c G7 blades
>> talking to a P4500 14.4TB Virt SAN (two clustered P4500 boxes).
>>
>> As the blade has two FlexHBA (iSCSI) interfaces I want to do
>> multipathing.  Is the following valid? (Spefically, should both ifaces
>> have the same iqn?)
>> ---
>> iscsiadm -m iface
>> default tcp,<empty>,<empty>,<empty>,<empty>
>> iser iser,<empty>,<empty>,<empty>,<empty>
>> be2iscsi.00:17:a4:77:10:01 be2iscsi,
>> 00:17:a4:77:10:01,<empty>,<empty>,iqn.2011-08.scada.benvir2p
>> be2iscsi.00:17:a4:77:10:00 be2iscsi,
>> 00:17:a4:77:10:00,<empty>,<empty>,iqn.2011-08.scada.benvir2p
>> ---
>>
>> In this setup, I can only login to the LUN on iface be2iscsi.
>> 00:17:a4:77:10:01.  When I attempt to login with the other iface I get
>> 'iscsiadm: No records found'.
>
> It sounds like you did not bind that iface. Does:
>
> iscsiadm -m node -P 1
>
> show records for both ifaces?
>
>
> You should have done something like
>
> iscsiadm -m discovery -t st -p ip -I be2iscsi.00:17:a4:77:10:01 -I
> be2iscsi.00:17:a4:77:10:00
>
> or
> iscsiadm -m discovery -t st -p ip -I be2iscsi.00:17:a4:77:10:01
> iscsiadm -m discovery -t st -p ip -I be2iscsi.00:17:a4:77:10:00 -o new
>
>
>
>>
>> I have other servers where I'm only using a single FlexHBA (be2iscsi)
>> and they are having their own troubles.  For example, dmesg is
>> reporting lots of:
>> ---
>> scsi: host 0 channel 0 id 0 lun4194304 has a LUN larger than allowed
>
>
> Do you actually have a LUN with that value 4194304?
>
> Maybe the LeftHand target needs some blacklist entry in the scsi mid
> layer to scan for devices properly.
>

No, this LUN was the first one created.  I don't know where the
4194304 came from.

CC

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