[gpfsug-discuss] GPFS RFE promotion

Ben De Luca bdeluca at gmail.com
Fri Oct 10 17:09:49 BST 2014


querying this through the policy engine is far to late to do any thing
useful with it

On Fri, Oct 10, 2014 at 11:51 PM, Sven Oehme <oehmes at gmail.com> wrote:

> Ben,
>
> to get lists of 'Hot Files' turn File Heat on , some discussion about it
> is here :
> https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777-0000-0000-0000-000014920653
>
> thx.  Sven
>
>
> On Fri, Oct 10, 2014 at 8:26 AM, Ben De Luca <bdeluca at gmail.com> wrote:
>
>> Id like this to see hot files
>>
>> On Fri, Oct 10, 2014 at 11:08 PM, Bryan Banister <
>> bbanister at jumptrading.com> wrote:
>>
>>> Hmm... I didn't think to use the DMAPI interface.  That could be a nice
>>> option.  Has anybody done this already and are there any examples we could
>>> look at?
>>>
>>> Thanks!
>>> -Bryan
>>>
>>> -----Original Message-----
>>> From: gpfsug-discuss-bounces at gpfsug.org [mailto:
>>> gpfsug-discuss-bounces at gpfsug.org] On Behalf Of Phil Pishioneri
>>> Sent: Friday, October 10, 2014 10:04 AM
>>> To: gpfsug main discussion list
>>> Subject: Re: [gpfsug-discuss] GPFS RFE promotion
>>>
>>> On 10/9/14 3:31 PM, Bryan Banister wrote:
>>> >
>>> > Just wanted to pass my GPFS RFE along:
>>> >
>>> > http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=6
>>> > 0458
>>> >
>>> >
>>> > *Description*:
>>> >
>>> > GPFS File System Manager should provide the option to log all file and
>>> > directory operations that occur in a file system, preferably stored in
>>> > a TSD (Time Series Database) that could be quickly queried through an
>>> > API interface and command line tools.  ...
>>> >
>>>
>>> The rudimentaries for this already exist via the DMAPI interface in GPFS
>>> (used by the TSM HSM product). A while ago this was posted to the IBM GPFS
>>> DeveloperWorks forum:
>>>
>>> On 1/3/11 10:27 AM, dWForums wrote:
>>> > Author:
>>> > AlokK.Dhir
>>> >
>>> > Message:
>>> > We have a proof of concept which uses DMAPI to listens to and
>>> passively logs filesystem changes with a non blocking listener.  This log
>>> can be used to generate backup sets etc.  Unfortunately, a bug in the
>>> current DMAPI keeps this approach from working in the case of certain
>>> events.  I am told 3.4.0.3 may contain a fix.  We will gladly share the
>>> code once it is working.
>>>
>>> -Phil
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