Re: [PATCH] [lsvpd] separate VPD stanzas in lsvpd output

On 11/02/2015 10:14 PM, Vasant Hegde wrote:
> On 10/28/2015 07:49 PM, Paul Clarke wrote:
>> On 10/22/2015 09:45 AM, Vasant Hegde wrote:
>>> On 09/30/2015 10:42 PM, Paul Clarke wrote:
>>>> Output from lsvpd command has no separation between different stanzas,
>>>> making interpretation difficult:
>>
>>> Thanks for the patch. But this patch changes the output format... which exists
>>> for long time. I know that there are lot of people using lsvpd/written wrapper
>>> around lsvpd for some automation/validation etc. I'm afraid that it may create
>>> side impact on those users..
>>
>> What if the behavior is enabled with a new command option?
>>
>> # lsvpd --stanzas
>
> Why do you need this ? we already have option like -l which lists device
> specific info based on AX name.

As I said in the original post, without some sort of separation between the stanzas,
it's impossible for anyone unfamiliar with the output (and that "*FC" is the first
entry in most(?) stanzas?) to be able to parse it.  Here's an extract:
--
*HW 0001
*B3 000000000001
*B4 00
*B7 000000000000000000000000
*B9 435333011412567123CE53505E8C13795821C89D4D313990F18087DE7DC34D32B6CB000AF9F048E34D33C750F50036650F994D3486220C8430C190B3
*YL U78C9.001.WZS005T-P1-C13
*VK ipzSeries
*FC
*DS Memory DIMM
*RT VINI
*FN 00JJ144
*SN YH32MU45C1AJ
*PN 00JJ144
*CC 31E8
*CE 1
*PR 4900000000010000
*Size 0016384
*HE 0001
*CT 00000000
*HW 0100
*B3 000000000000
*B4 00
*B7 000000000000000000000000
*YL U78C9.001.WZS005T-P1-C16
*VK ipzSeries
*FC
*DS Memory DIMM
*RT VINI
*FN 00JJ144
*SN YH32MU45C1BY
--

Tell me the serial number of the Memory DIMM at U78C9.001.WZS005T-P1-C16.  Is it the "SN"
above or below the location (YL)?  There's no way to know as there is not enough context.

The "-l" option is only useful if one already knows the device name.  If one is searching
for a device, the context is helpful so that not only can one find the device, one can
also glean it's attributes with confidence.

I tried using filters like "-t" or "-s", and neither seemed to work.  I always got
everything displayed:
# lsvpd -t memory | wc -l
586
# lsvpd -t blah | wc -l
586
# lsvpd -s blah | wc -l
586

By the way, is there any way to make the output more "readable"?  The only obvious
field label well above is "Size".  Why are the other field labels limited to two
fairly nebulous characters?

Regards,
PC


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