A DMAPI daemon solution puts a dependency on the DMAPI daemon for the file system to be mounted. I think it would be better to have something like what I requested in the RFE that would hopefully not have this dependency, and would be optional/configurable. I’m sure we would all prefer something that is supported directly by IBM (hence the RFE!)
Thanks, -Bryan Ps. Hajo said that he couldn’t access the RFE to vote on it: I would like to support the RFE but i get: "You cannot access this page because you do not have the proper authority." Cheers Hajo Here is what the RFE website states: Bookmarkable URL:http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=60458 A unique URL that you can bookmark and share with others. From: [email protected] [mailto:[email protected]] On Behalf Of Sven Oehme Sent: Friday, October 10, 2014 11:52 AM To: gpfsug main discussion list Subject: Re: [gpfsug-discuss] GPFS RFE promotion The only DMAPI agent i am aware of is a prototype that was written by tridge in 2008 to demonstrate a file based HSM system for GPFS. its a working prototype, at least it worked in 2008 :-) you can get the source code from git : http://git.samba.org/rsync.git/?p=tridge/hacksm.git;a=summary just to be clear, there is no Support for this code. we obviously Support the DMAPI interface , but the code that exposes the API is nothing we provide Support for. thx. Sven On Fri, Oct 10, 2014 at 9:15 AM, Bryan Banister <[email protected]<mailto:[email protected]>> wrote: I agree with Ben, I think. I don’t want to use the ILM policy engine as that puts a direct workload against the metadata storage and server resources. We need something out-of-band, out of the file system operational path. Is there a simple DMAPI daemon that would log the file system namespace changes that we could use? If so are there any limitations? And is it possible to set this up in an HA environment? Thanks! -Bryan From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Ben De Luca Sent: Friday, October 10, 2014 11:10 AM To: gpfsug main discussion list Subject: Re: [gpfsug-discuss] GPFS RFE promotion 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 <[email protected]<mailto:[email protected]>> 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 <[email protected]<mailto:[email protected]>> wrote: Id like this to see hot files On Fri, Oct 10, 2014 at 11:08 PM, Bryan Banister <[email protected]<mailto:[email protected]>> 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: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] 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 _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at gpfsug.org<http://gpfsug.org> http://gpfsug.org/mailman/listinfo/gpfsug-discuss ________________________________ Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. 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