[gpfsug-discuss] Did you know about "-Y" ?? I sure didn't... game changer

Jez Tucker jtucker at pixitmedia.com
Wed Apr 20 22:18:28 BST 2016


So mmlspool does in 4.1.1.3... perhaps my memory fails me.
I'm pretty certain Yuri told me that mmlspool was completely unsupported 
and didn't have -Y a couple of years ago when we did the original GPFS 
UG RFEs prior to 4.x.  I figure that earns cookies.

Perhaps in light of the mmbackup thread; "Will fix RFEs for cookies?".  
Name your price ;-)

Jez

On 20/04/16 22:12, Jez Tucker wrote:
> Indeed.
>
> jtucker at elmo:~$ mmlsfs all -Y
> mmlsfs::HEADER:version:reserved:reserved:deviceName:fieldName:data:remarks:
>
> I must say I've not seen any headers increment above 0:1 since ... er 
> .. 3.3(?), so they're pretty static.
>
> Now, if only mmlspool supported -Y ... or if _all_ commands supported 
> -Y, I might even FedEX beer.
>
> Jez
>
>
> On 20/04/16 21:46, Bryan Banister wrote:
>>
>> What’s nice is that the “-Y” output provides a HEADER so that you can 
>> still programmatically determine fields of interest… this is the best!
>>
>> I recommend adding “-Y” option documentation to all supporting GPFS 
>> commands for others to be informed.
>>
>> -Bryan
>>
>> *From:*gpfsug-discuss-bounces at spectrumscale.org 
>> [mailto:gpfsug-discuss-bounces at spectrumscale.org] *On Behalf Of 
>> *Barry Evans
>> *Sent:* Wednesday, April 20, 2016 3:39 PM
>> *To:* gpfsug-discuss at spectrumscale.org
>> *Subject:* Re: [gpfsug-discuss] Did you know about "-Y" ?? I sure 
>> didn't... game changer
>>
>> If you build a monitoring pipeline using -Y output, make sure you 
>> test between revisions before upgrading. The columns do have a 
>> tendency to change from time to time.
>>
>> Cheers,
>> Barry
>>
>> On 20/04/2016 20:02, Bryan Banister wrote:
>>
>>     Apparently, though not documented in man pages or any of the GPFS
>>     docs that I’ve read (at least that I recall), there is a “-Y”
>>     option to many/most GPFS commands that provides output in machine
>>     readable fashion….
>>
>>     That’s right kids… no more parsing obscure, often changed output
>>     columns with your favorite bash/awk/python/magic.
>>
>>     Why IBM would not document this is beyond me,
>>
>>     -B
>>
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>
> -- 
> Jez Tucker
> Head of Research & Development
> Pixit Media
> Mobile: +44 (0) 776 419 3820
> www.pixitmedia.com <http://www.pixitmedia.com>

-- 
Jez Tucker
Head of Research & Development
Pixit Media
Mobile: +44 (0) 776 419 3820
www.pixitmedia.com <http://www.pixitmedia.com>

-- 

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