[Ocfs2-users] hardware needed for OCFS

Sean Gray seannoblegray at gmail.com
Fri Dec 19 07:34:10 PST 2008


/*Please discontinue NFS exporting the OCFS2 volumes and advise us of 
the resutls.

Thank you,

Dave.

STATUS:
=======
I am currently waiting on client to do actions.
Please update the TAR with a status when items are complete.
@CUS
David Nicholas
Enterprise Linux Support
Oracle Support Services*/

Sean Gray

Sunil Mushran wrote:
> Why do you say that?
>
> On Dec 19, 2008, at 4:59 AM, Sean Gray <sgray at bluestarinc.com 
> <mailto:sgray at bluestarinc.com>> wrote:
>
>> Note of caution. FWIW It is not recommended to mount OCFS2 volumes 
>> via NFS.
>> Sean N. Gray
>>
>>     
>>
>>
>> Luis Freitas wrote:
>>>   What I mean is that they have the full TCP/IP stack in them, and provide a SCSI interface to the kernel, so there is no additional CPU load using them.
>>>
>>>   One could instead of using a iSCSI adapter, use a common etherned adapter and mount the iSCSI target using a software driver. The main CPU would have the additional load of disassembling the TCP/IP packets and routing them.
>>>
>>>   Btw, I never actually used one of these boards.
>>>
>>> Regards,
>>> Luis 
>>>
>>>
>>> --- On Fri, 12/19/08, David Coulson <david at davidcoulson.net <mailto:david at davidcoulson.net>> wrote:
>>>
>>>   
>>>> From: David Coulson <david at davidcoulson.net <mailto:david at davidcoulson.net>>
>>>> Subject: Re: [Ocfs2-users] hardware needed for OCFS
>>>> To: lfreitas34 at yahoo.com <mailto:lfreitas34 at yahoo.com>
>>>> Cc: ocfs2-users at oss.oracle.com <mailto:ocfs2-users at oss.oracle.com>
>>>> Date: Friday, December 19, 2008, 10:26 AM
>>>> Typically I find folks use 'NAS" to refer to
>>>> filesystem level sharing (NFS, Samba), and SAN for block
>>>> level (FC, iSCSI).
>>>>
>>>> There are plenty of iSCSI HBAs (I've only used the ones
>>>> from qlogic), however they don't 'simulate'
>>>> anything - They're just a SCSI adapter with an iSCSI
>>>> backend.
>>>>
>>>> Luis Freitas wrote:
>>>>     
>>>>>   If your NAS can do iSCSI you could use it to provide
>>>>>       
>>>> a shared block device.
>>>>     
>>>>>   The performance wont be as good as a SAN as the data
>>>>>       
>>>> has to go through the kernel TCP/IP stack, it can be
>>>> comparable if you have a iSCSI IP accelerator board that
>>>> simulates a hba.
>>>>     
>>>>> Regards,
>>>>> Luis
>>>>>
>>>>>
>>>>> --- On Fri, 12/19/08, David Coulson
>>>>>       
>>>> <david at davidcoulson.net <mailto:david at davidcoulson.net>> wrote:
>>>>     
>>>>>   
>>>>>       
>>>>>> From: David Coulson <david at davidcoulson.net <mailto:david at davidcoulson.net>>
>>>>>> Subject: Re: [Ocfs2-users] hardware needed for
>>>>>>         
>>>> OCFS
>>>>     
>>>>>> To: "Pete Kay" <petedao at gmail.com <mailto:petedao at gmail.com>>
>>>>>> Cc: ocfs2-users at oss.oracle.com <mailto:ocfs2-users at oss.oracle.com>
>>>>>> Date: Friday, December 19, 2008, 9:57 AM
>>>>>> OCFS2 requires a block device (local disk, direct
>>>>>>         
>>>> attached,
>>>>     
>>>>>> SAN), so it's not going to work with a NAS
>>>>>>         
>>>> (Samba, NFS, etc)
>>>>     
>>>>>> mount. You can, of course, share a OCFS2
>>>>>>         
>>>> filesystem using Samba or NFS.
>>>>     
>>>>>> Pete Kay wrote:
>>>>>>     
>>>>>>         
>>>>>>> Hi,
>>>>>>>
>>>>>>> Does OCFS require NAS hardware to run or does
>>>>>>>           
>>>> normal
>>>>     
>>>>>>>       
>>>>>>>           
>>>>>> PC hard disk work?
>>>>>>     
>>>>>>         
>>>>>>> Thanks,
>>>>>>> Pete
>>>>>>>
>>>>>>>       
>>>>>>>           
>>>> ------------------------------------------------------------------------
>>>>     
>>>>>>     
>>>>>>         
>>>> _______________________________________________
>>>>     
>>>>>>> Ocfs2-users mailing list
>>>>>>> Ocfs2-users at oss.oracle.com <mailto:Ocfs2-users at oss.oracle.com>
>>>>>>>
>>>>>>>           
>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>     
>>>>>>>       
>>>>>>>           
>>>>>> _______________________________________________
>>>>>> Ocfs2-users mailing list
>>>>>> Ocfs2-users at oss.oracle.com <mailto:Ocfs2-users at oss.oracle.com>
>>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>>     
>>>>>>         
>>>>>       
>>>>> _______________________________________________
>>>>> Ocfs2-users mailing list
>>>>> Ocfs2-users at oss.oracle.com <mailto:Ocfs2-users at oss.oracle.com>
>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>
>>>>>       
>>>
>>>       
>>>
>>> _______________________________________________
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>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>   
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