> All that said, I would not encourage deleting pempersist or STREAMS without the guidance of a Symantec engineer--if NBU is busted to the > point of needing to do something like that, then we need to be helping Symantec to gather the data so that they can fix it.

Larry,

 

I agree and I have mentioned it to engineering several times, sent off logs etc. We currently use 6.0MP4 and I am told that this will finally be fixed in 6.0MP6. Note: they have been saying something similar since 6.0MP2. Shutting down netbackup, deleting pempersist and restarting has been fairly harmless in my experiences (6.0 only). Although others may have had other experiences. But as we are all waiting for Netbackup to work as per brochure, we all have our little fixes we shall use until that day comes.

 

Anyway, I do try several things before deleting pempersist and it is something I have been made familiar with by engineering but I do agree that you should talk to support before you do such things. In the end, it's in the hands of the netbackup admin, you do things at your own discretion / risk so you should understand what you are doing and the impact of your actions. Not that I want to tell people how to do their job. I had better stop now.

 

Happy netbackup admining,

 

Dominik

 

 

---

From: Larry Fahnoe [mailto:fahnoe AT fahnoetech DOT com]
Sent: Monday, 25 February 2008 12:11 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] pempersist

 

Both pempersist and STREAMS are considered by Symantec to be internal data structures reserved to NetBackup.  In my opinion it is interesting to attempt to understand how NetBackup uses these files, but I would not rely upon this understanding to try to second guess what NetBackup is up to.  In the past I've written utilities that parse and interpret the STREAMS file and from that make decisions about what NBU ought to be doing (or should have done).  When I posted one of these utilities, I got called by engineering in short order asking that I not post such things because the results can be misinterpreted and are often specific to particular versions of NBU.  All that said, I would not encourage deleting pempersist or STREAMS without the guidance of a Symantec engineer--if NBU is busted to the point of needing to do something like that, then we need to be helping Symantec to gather the data so that they can fix it.

--Larry

On 2/24/08, Dominik Pietrzykowski <dominik_pietrzykowski AT toll.com DOT au> wrote:

 

> Should I be checking this pempersist file every day and run any jobs that appear in it?

No, you are better of shutting down netbackup, deleting it, and starting it again, it should then run the other jobs.

 

No experience with the stream file but I'm sure someone else on here can comment on it. Ie Ed, Curtis etc

 

 

---

From: Nathan Kippen [mailto:nate.kippen AT gmail DOT com]
Sent: Saturday, 23 February 2008 8:31 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] pempersist

 

 

I'm sorry if this has been already discussed in the past but can somebody explain to me how netbackup uses the pempersist file.

Recently I had problems with backups not excuting when they became due -- the solution symantec/veritas gave me was to remove the 'pempersist' file in ./db/jobs/ and also a 'streams' file in .db/images/<client>/

Should I be checking this pempersist file every day and run any jobs that appear in it?

Thanks

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--
Larry Fahnoe, Fahnoe Technology Consulting, fahnoe AT FahnoeTech DOT com
952/925-0744      Minneapolis, Minnesota       www.FahnoeTech.com