Re: [ADSM-L] SV: TSM 6.1.3.1 on Windows?

On 6 feb 2010, at 13:37, Christian Svensson wrote:

> Hi Remco,
> That shouldn't be necessary to do. And the library the customer is using 
> don't have support for partitioning.
> I have set the LTO format in the Device Class and have been working since I 
> start working with TSM. (4.2)
> 
> 

That confirms my ideas about how it should work.

Even without partitioning, you can define two libraries, that are both 
controlled by the same control-path (device node in unix). That may be a 
workaround for this issue? I see no real downsides to that solution, though I 
agree that TSM should only mount tapes that are actually compatible with the 
format you have set in the device class. Maybe you need to call support?

> 
> Best Regards
> Christian Svensson
> 
> Cell: +46-70-325 1577
> E-mail: Christian.Svensson AT cristie DOT se
> Skype: cristie.christian.svensson
> Supported Platform for CPU2TSM:: 
> http://www.cristie.se/cpu2tsm-supported-platforms
> 
> ________________________________________
> Från: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] f&#246;r Remco 
> Post [r.post AT PLCS DOT NL]
> Skickat: den 6 februari 2010 12:09
> Till: ADSM-L AT VM.MARIST DOT EDU
> Ämne: Re: TSM 6.1.3.1 on Windows?
> 
> On 6 feb 2010, at 10:36, Christian Svensson wrote:
> 
>> Hi,
>> Does anyone using TSM 6.1.3.1 on Windows Server 2008 R2?
>> I have a open support ticket where "Query SAN" showing the wrong information 
>> and somehow does TSM Server try to take the wrong LTO Media to each Device 
>> Classes.
>> After 24 hours are all my Scratch tapes in Private Mode?
>> 
>> What's happening is that I have a mix media in my Library with LTO-3 and 
>> LTO-4 tapes. But I only want to use LTO-4 to my primary tapepool and LTO-3 
>> to my Copypool.
>> I have create a BCKCLASS and COPYCLASS where BCKCLASS points to ULTRIUM4C 
>> and COPYCLASS ULTRIUM3C
> 
> I guess you mean that you have set the format of the device class as such?
> 
>> All LTO-3 Media starts with 0 and end with L3 and LTO-4 starts with A and 
>> ends with L4.
>> When I run q libvol so will LTO-3 media be in the top and L4 media in the 
>> bottom.
>> 
>> If I start a BACKUP STGPOOL to my Copypool does everything works fine in the 
>> beginning. But when I start migration from DISKPOOL to TAPEPOOL then does 
>> TSM try to mount a LTO-3 tape and failing and switch that media to Private, 
>> then it continue with that until it gets to LTO-4 tapes and start migrate 
>> the data.
>> When I start the BACKUP STGPOOL again it does try to backup to a LTO-3 tape 
>> and I get the same issue now with LTO-4 media that it put them in Private 
>> Mode.
>> 
>> Any guess why this is happening?
>> 
> 
> TSM, unfortunately for you, knows about LTO media compatibility, os it knows 
> it can write an ultrium3 cart in an LTO4 drive. It (apparently) doesn't know 
> that it can't write an u3 cart in ULTRIUM4C format, so when it actually 
> starts writing data it fails.
> 
> What you could do, is define two libraries in TSM, (possibly define an LTO4 
> drive as control path for the LTO4 part and an LTO3 drive for the LTO3 part, 
> but I don't think that's really needed), and point your device classes to 
> logically separate libs. Check you media in to the right logical lib and your 
> set to go.
> 
> 
>> Best Regards
>> Christian Svensson
>> 
>> Cell: +46-70-325 1577
>> E-mail: Christian.Svensson AT cristie DOT se
>> Skype: cristie.christian.svensson
>> Supported Platform for CPU2TSM:: 
>> http://www.cristie.se/cpu2tsm-supported-platforms
> 
> --
> Met vriendelijke groeten/Kind Regards,
> 
> Remco Post
> r.post AT plcs DOT nl
> +31 6 248 21 622

-- 
Met vriendelijke groeten/Kind Regards,

Remco Post
r.post AT plcs DOT nl
+31 6 248 21 622