[Lustre-discuss] Lustre 1.8.1 and ISCSI Kernel support

[Reykjavik hindisvik]

2009/8/26 Reykjavik hindisvik <hindisvik at gmail.com>

> Hi,
>
> Thank you for your answer, it was a great idea to install
> kernel-ib-1.4.1-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm since it
> provides me the ISCSI modules needed! Thanx for that.
>
> So now, I can start iscsid service and launch :
> iscsiadm -m discovery  --type sendtargets --portal 192.168.0.253
> ... but I still have a problem when I want to connect my target :
> iscsiadm -m node -T iqn.2008-07.fr.xxx:xxx.disk1.sys1.xyz -p 192.168.0.253
> -l
>
> It gives me the following error :
> iscsiadm: Could not login to [iface: default, target:
> iqn.2008-07.fr.xxx:xxx.disk1.sys1.xyz, portal: 192.168.0.253,3260]:
> iscsiadm: initiator reported error (9 - internal error)
>
> Aug 26 09:19:24 lfs1 kernel:  session2: couldn't create a new
> connection.<6>scsi7 : iSCSI Initiator over TCP/IP
> Aug 26 09:19:24 lfs1 kernel:  connection3:0: Could not create connection
> due to crc32c loading error. Make sure the crc32c module is built as a
> module or into the kernel
> Aug 26 09:19:24 lfs1 iscsid: received iferror -12
> Aug 26 09:19:24 lfs1 iscsid: can't create connection (115)
>
> It seems there's a problem with the crc32c module, which is needed to mount
> an ISCSI target. If I use a non lustre patched kernel like :
> 2.6.18-128.1.14.el5 the module is compiled ionto the kernel and everything
> works fine.
>
> What can I do?
> Have someone encountered this problem?
>
> Thank you by advance.
>
> Best regards,
>
> Hindisvik
>
>
>
> 2009/8/25 Arne Wiebalck <arne.wiebalck at cern.ch>
>
> Hi Hindisvik,
>>
>> iSCSI support is switched off in the lustre kernels, but it should
>> be available from the kernel-ib package, see this thread:
>>
>> http://lists.lustre.org/pipermail/lustre-discuss/2009-July/011068.html
>>
>> I tried that with 1.8.0, but did not succeed: the iSCSI modules could not
>> be loaded, so I compiled my own kernel in the end.
>>
>> I did not check with 1.8.1, but if you succeed I would be very interested
>> to know.
>>
>> HTH,
>>  Arne
>>
>>
>>
>>
>>
>> Reykjavik hindisvik wrote:
>>
>>> Hello,
>>>
>>> I've downloaded the last release of Lustre (1.8.1) in rpm :
>>>
>>> e2fsprogs-1.41.6.sun1-0redhat.rhel5.x86_64.rpm
>>> *kernel-lustre-2.6.18-128.1.14.el5_lustre.1.8.1.x86_64.rpm*
>>> lustre-1.8.1-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm
>>> lustre-client-1.8.1-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm
>>> lustre-client-modules-1.8.1-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm
>>> lustre-ldiskfs-3.0.9-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm
>>> lustre-modules-1.8.1-2.6.18_128.1.14.el5_lustre.1.8.1.x86_64.rpm
>>>
>>> I'd like to use Lustre with a ISCSI storage device, and it seems this
>>> kernel does not support ISCSI (?!) (scsi_transport_iscsi.ko). Have someone
>>> encouter this problem? Is there another version with SCSI support? What can
>>> I do?
>>>
>>> Thank you be advance for any suggestion.
>>>
>>> Best regards
>>>
>>> Hindisvik
>>>
>>>
>
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