Thanks for the info on the spec. I was under some impression that
Netbackup (remember, we're on 5.1 here) had an issue with using three
different media types. Maybe this is not the case but it was something I
had in my head. If this is not so, it sounds like we can move to LTO4
fairly quickly.

Dean wrote:
> The LTO spec says the drives should be able to write to media one generation 
> back, and read two generations back. So an LTO4 should be able to read and 
> write to LTO3 media, and read from LTO2 media.
>
> Like Jeff said, use barcode rules to assign the LTO2/3 tapes to a different 
> media type and/or volume pools, and make sure none of your backup policies 
> are writing to that media type or pool, and let them expire of their own 
> accord. If there is some reason to get off the older media before the images 
> expire, you'll have to use bpduplicate to copy the images to LTO4 media.
>
> -
> Dean
>
>
> On Tue, May 4, 2010 at 2:24 AM, Nate Sanders <sandersn AT dmotorworks DOT 
> com<mailto:sandersn AT dmotorworks DOT com>> wrote:
> Are you saying we can have LTO2/3/4 all active in the same library? I
> was under the impression we couldn't start using LTO4 tapes until we
> phased out the LTO2 tapes?
>
>
> Jeff Cleverley wrote:
>   
>> If all you need to do to migrate to the new media is scan them in the
>> library and assign them to the correct media pool.
>>
>> The gen4 drives will be able to write to the gen3 tapes and read from
>> the gen2 if you need to do restores.  If you plan on phasing out the
>> older media when they expire you might want to either write protect
>> the tapes or set up a barcode rule to move specific labels to
>> something other than the backup or scratch pool.  This will keep them
>> from getting used again.
>>
>> Jeff
>>
>> On Mon, May 3, 2010 at 9:52 AM, Nate Sanders <sandersn AT dmotorworks DOT 
>> com<mailto:sandersn AT dmotorworks DOT com>> wrote:
>>
>>     
>>> The drives are currently LTO4, the tape is LTO2/3. All we need to do is
>>> migrate to LTO4 media.
>>>
>>>
>>> Martin, Jonathan wrote:
>>>
>>>       
>>>> Are you looking to replace an existing LTO3 library / drives with LTO4?
>>>> Or are you trying to copy data from LTO3 to LTO4 tapes?
>>>>
>>>> -Jonathan
>>>>
>>>> -----Original Message-----
>>>> From: veritas-bu-bounces AT mailman.eng.auburn DOT 
>>>> edu<mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu>
>>>> [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT 
>>>> edu<mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu>] On Behalf Of 
>>>> Nate
>>>> Sanders
>>>> Sent: Monday, May 03, 2010 11:24 AM
>>>> To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU<mailto:VERITAS-BU AT 
>>>> MAILMAN.ENG.AUBURN DOT EDU>
>>>> Subject: [Veritas-bu] LTO3 to LTO4 conversion
>>>>
>>>> Forgive me for what may be a straight forward question, but our last
>>>> backup admin has left and I'm doing my best to step up and keep our
>>>> systems moving along. I'm looking for a general outline of an LTO3 to
>>>> LTO4 conversion with Netbackup 5.1 (upgrading is on the list, but we
>>>> can't wait to complete it). Right now we still have some LTO2 tapes, and
>>>> I believe I must migrate and/or eject and store these in order to
>>>> complete the conversion. Are there any other gotchas or need to knows I
>>>> must be aware of?
>>>>
>>>> Thank you much.
>>>>
>>>> P.S. New member to the list, working on getting scheduled for some
>>>> on-line courses.
>>>>
>>>>
>>>>
>>>>         
>>> --
>>> Nate Sanders            Digital Motorworks
>>> System Administrator      (512) 692 - 1038
>>>
>>>
>>>
>>>
>>> This message and any attachments are intended only for the use of the 
>>> addressee and may contain information that is privileged and confidential. 
>>> If the reader of the message is not the intended recipient or an authorized 
>>> representative of the intended recipient, you are hereby notified that any 
>>> dissemination of this communication is strictly prohibited. If you have 
>>> received this communication in error, please notify us immediately by 
>>> e-mail and delete the message and any attachments from your system.
>>> _______________________________________________
>>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT 
>>> edu<mailto:Veritas-bu AT mailman.eng.auburn DOT edu>
>>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>>>
>>>
>>>       
>>
>>
>>     
>
>
> --
> Nate Sanders            Digital Motorworks
> System Administrator      (512) 692 - 1038
>
>
>
>
> This message and any attachments are intended only for the use of the 
> addressee and may contain information that is privileged and confidential. If 
> the reader of the message is not the intended recipient or an authorized 
> representative of the intended recipient, you are hereby notified that any 
> dissemination of this communication is strictly prohibited. If you have 
> received this communication in error, please notify us immediately by e-mail 
> and delete the message and any attachments from your system.
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT 
> edu<mailto:Veritas-bu AT mailman.eng.auburn DOT edu>
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>
>   


-- 
Nate Sanders            Digital Motorworks
System Administrator      (512) 692 - 1038




This message and any attachments are intended only for the use of the addressee 
and may contain information that is privileged and confidential. If the reader 
of the message is not the intended recipient or an authorized representative of 
the intended recipient, you are hereby notified that any dissemination of this 
communication is strictly prohibited. If you have received this communication 
in error, please notify us immediately by e-mail and delete the message and any 
attachments from your system.
_______________________________________________
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