[Ocfs-users] Re: About compression of files on OCFS

[Herbert]

Since dd can use o_direct, would it be possible to pipe the compressed 
output into dd which then writes it to an OCFS file with o_direct?

Thanks,
Herbert.

Sunil Mushran wrote:
> Again, it's not the act of compression but rather the mode of r/w.
> If one writes a compress tool which is o_direct, then I see no issue.
> 
> Kenichiro Ochi wrote:
> 
>> Sunil
>> Thank you for your prompt reply.
>> I really appreciate it.
>>
>> Please let me know if you know.
>> Do you know the documentation which shows as follwing.
>> - It is not supported that archive logfiles on OCFS are compressed.
>>
>> Thank you in advance.
>>
>> Thanks.
>> Kenichiro
>>
>>
>> On Thu, 28 Jul 2005 12:05:16 -0700
>> Sunil Mushran <Sunil.Mushran at oracle.com> wrote:
>>
>>  
>>
>>> The issue is not the type of files, rather the mode the files are r/w.
>>> OCFS (Release 1) is supported only for o_direct operations.
>>> gzip, etc. do bufferred reads and hence is an issue.
>>>
>>> Kenichiro Ochi wrote:
>>>
>>>   
>>>
>>>> Hi, Experts.
>>>> I'm Kenichiro Ochi, the support engineer of Oracle Japan.
>>>>
>>>> I would like to ask you the following questions about supported 
>>>> files on OCFS.
>>>> I know OCFS VER 1.X only supports Oracle datafiles (including 
>>>> archive logfiles).
>>>>
>>>> My customer has one question.
>>>>
>>>> - Is it supported that archive logfiles on OCFS are compressed 
>>>>  (using compress, gzip command etc) ?
>>>>  In other words, is it allowed that there are compressed files(.Z, 
>>>> .zip etc) on OCFS ?
>>>>
>>>> I would appreciate it if I could receive feedback on it at your 
>>>> earliest convenience.
>>>>
>>>> Since I'm not in the mailing list, please reply directly back to me.
>>>> Thank you in advance.
>>>>
>>>> Thanks
>>>> Kenichiro
>>>>
>>>>
>>>>
>>>>
>>>>     
>>
>>
>>  
>>
>