New Media Set Date in the middle of the Backup Week

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New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Wed Feb 10, 2016 5:09 pm

Hello ,

I find an strange behavior .

In my Media Pool i started only every Saturday at 00:05 an new Media Set .

An now in my Media Pool i see the following :

Image

In the middle of the Week one Tape in my Media Set becomes an other Date . Yust for Info . This Job uses two Tapes with the Parallelprocessing Option activated .
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby Dima P. » Wed Feb 10, 2016 11:32 pm

Hello,
This Job uses two Tapes with the Parallelprocessing Option activated

When you enable parallel processing for the media pool it keep more than one media set opened to be processed simultaneously. Check the sequence number you have three tapes with the #1.

Also I strongly recommend you to keep the %ID% postfix in the media set name – it allows you to easily identify the “parts” of the media sets with parallel processing being enabled.

Below is the list of three tapes being processed simultaneously (as a result three media sets were opened).

Tape XXX11 - Media set XXXX ... ID1 - Sequence number 1
Tape XXX21 - Media set XXXX ... ID2 - Sequence number 1
Tape XXX31 - Media set XXXX ... ID3 - Sequence number 1
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Thu Feb 11, 2016 7:51 am

Sorry this is totally nonsense !!!!!

First : The only Point where i can define when a new Mediaset is started sholud the Option in the Media Pool under "Media Set"

Second : How should i distinguish in an MediaPool with 60 Tapes and 6 Mediasets only with the ID and not with the Date of the Week which Tapes i Need in case of Recover .

Thirt : What has the usage of one or Two Tape Drives for an Tape Job to do with the creation of an new Media Set ???????

Fourth : The Reason why i stamp an New Mediaset with the Date is to have unique Media Sets for an Week in an Media Pool . With your Solution i have many ID1s and many ID2s etc. .... what Nonsens ?!?!!?

Sixth : The Mediaset one Week before ( 31.01.2016 ) uses on an Special day two Tape drives for the Backup Job too , but no Mediaset Date is created ????

Ist a Bug for me and not a Feature , Sorry .

Veeam finally take you Homework with the Tape Option .
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Sun Feb 14, 2016 7:43 am

No answer is also an answer !!!!
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby Dima P. » Sun Feb 14, 2016 7:24 pm

Hi WinstonWolf,
I am sorry for keeping silence. First, I just realized that there is no prompt explanation of the parallel processing logic in the Help Center – thanks for pointing this out. I’ll let Technical Writers team know.

Next, let me explain the logic of the parallel processing to make sure we are on the same page.

For better understanding let’s start with the media pool without parallel processing being enabled. Media pool (basically, a scope of tapes with set retention) should have one sequence of tape media for successive tape job processing. This sequence is called media set where tapes are added one by one (you can manage this stream creation logic and set the custom name). If you scheme the media pool and media set it should look like this:

Tape Job 1 > Media Pool A > Media set 1 > Tape A
Tape Job 2 (will wait for the Tape Job 1 to finish) > Media Pool A > Media set 1 > Tape A (if not enough space next Tape B is used)

Keeping in mind that this jobs are running successively and parallel processing is disabled.

Now we enable the parallel processing for two drives (for example, if you what to run two or more tape jobs at the same time). Concurrent tape jobs pointed to the same media pool should start their own data stream at the same time. Since they can’t use one tape in two drives at the same time, every job will take it’s own tape media and open a media set for each tape. It should look like this:

Tape Job 1 > Media Pool A > Media set 1 > Tape A
Tape Job 2 (will start at the same time) > Media Pool A > Media set 2 > Tape B

That is the reason you may get two media sets opened at the same time and two tapes with sequence number 1. The ID variable I propose above is just a way to easily track such media sets.

Hope it makes sense.
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Mon Feb 15, 2016 7:13 am

Hello and thanks for the Answer,

First : Is it possible to say the Tape Job in parallel processing that he dont start the both Backup Jobs at the same Time to the both drives ? For example 10min difference . ( perhaps per Script ? )
Then parallel processing should use only one Media Set , if i understand u correctly .

Second : I have Problems with the %ID% Postfix . Now it Looks so :

Image

We have no Numbers .


Thanks
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Mon Feb 15, 2016 8:06 am

Can it be tha the # is missing in the %ID% Postfix ? #%ID%
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby PTide » Mon Feb 15, 2016 11:26 am

Hi,

Can it be tha the # is missing in the %ID% Postfix ? #%ID%
Please try to type in a lowercase - %id% instead of %ID%

Thank you.
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Mon Feb 15, 2016 1:07 pm

Perfekt , it works .
Have you a solution for the other Problem ?
I can explain you why i want to use parallel Processing for the "big" DAILY_EXCH-SQL Tape Job .
On Saturday Morning he creates an new Media Set for this Job and therefore an new virtual Full . Because we want on every Week on every Media Set one virtual Full and the vibs for the Weekdays .
But this virtual Full processing needs very long Time . I think it is because we have an forward incremental forever with 30 retention points . We dont have free space for syntetic fulls on our Storage .
Image

First Question , why the "Processing Full Backup" needs so long Time ?
Second question is the solution with parallel processing the right solution for this behavior ? I Think the Problem is on the Storage Side ?
Goes the Job slowlyer when i use normal processing ?

Pleas i need Help for this Problem .

Thanks
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Tue Feb 16, 2016 11:03 am

Need a fast solution for this behavior , Sorry .
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby Dima P. » Tue Feb 16, 2016 11:23 am

Hi WinstonWolf,
Is it possible to say the Tape Job in parallel processing that he dont start the both Backup Jobs at the same Time to the both drives ? For example 10min difference .

Then tape jobs are going to be started one by one, new tape media is taken by the dalayed job, thus new media set is going to be started anyway.
Processing for the "big" DAILY_EXCH-SQL Tape Job

If I do remember your previous posts correctly, this source job contains one backup chain, right?
First Question , why the "Processing Full Backup" needs so long Time ?

Since the bottleneck is 'Target' please clarify how your library is connected to the tape proxy
Goes the Job slowlyer when i use normal processing ?

It should not be faster. Generally, parallel processing allows writing two (or more) tapes simultaneously but performance remains the same in both cases (although, you have an option to process in parallel multiple backup chains within one source backup job but that does not seem to be the case).
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Tue Feb 16, 2016 1:28 pm

No , the Source Backup to Disk Job contains 2 Backup Chains ( Two VM Backup to Disk Jobs ) as you can see in the Screenshot .

The last Question that i ask you is about that u tell me when i use parallel processing it is normal that an new Media Set is created . when i dont use parallelprocessing than i have only one Media Set , right ?

What needs so long time , 30 Hours for this Backup to Tape Job ?

The Tape Drives are connected to the Backup Server via Fibre Channel and SAS ( 2 Tape Drives Fibre Channel , one Drive vie SAS )
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Tue Feb 16, 2016 1:30 pm

Can i send you the Log Files of this Job and you can see what happens there ?
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby WinstonWolf » Tue Feb 16, 2016 3:46 pm

On which way i can sent you this file ?
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Re: New Media Set Date in the middle of the Backup Week

Veeam Logoby Dima P. » Tue Feb 16, 2016 4:17 pm

when i use parallel processing it is normal that an new Media Set is created . when i dont use parallelprocessing than i have only one Media Set , right ?

Yes - multiple media sets required for parallel processing. Basically, you will have X number of media sets in the media pool, where X is the number of drives you specified at parallel processing step of the Media Pool wizard.
What needs so long time , 30 Hours for this Backup to Tape Job ?

Now let’s investigate this problem. As I understood you are on LTO 5 drives which average transfer rate is ~140 MB (at least if I remember the LTO specifications correctly), is that correct?

You have one backup to tape job with two source backup jobs (two VMs) parallel processing – can you check and share the completion time in the job session for every task (in the left of the backup stratus you have two task which are generated by source job VMs included into tape job)
Can i send you the Log Files of this Job and you can see what happens there ?

You can upload the logs by submitting the case at customer care portal and posting ID to this thread.
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