...and remember: Activelog is 128GB max (woks as designed)
regards
Dierk
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|Paul Zarnowski <p...@cornell.edu>
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|ADSM-L@VM.MARIST.EDU,
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|17.04.2013 23:19
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|Re: [ADSM-L] ? Best TSMv6 DB Config: 4 * 300GB or 6 * 200GB (LUN=PV=LV=FS)
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|"ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU>
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I would say if you think you might grow it, start with 4 LUNs, not 6. I
think I heard somewhere that fewer DB volumes are better and too many can
be a problem. I have no experience with this. Most of our databases are
on 2-3 volumes.
At 02:47 PM 4/17/2013, James R Owen wrote:
>Seeking your experienced advice or reasoned opinion:
>
>We have a TSMv5.5.7 service with very fragmented 500GB DB @ 76% utilized
>but only 8% reduceable. As soon as possible we will start TSMv5->v6
>migration to new 1200GB DB and 200GB Log. Another TSMv6 service with
>800GB DB @ ~50% utilized performs well using 4 * 200GB LUNs = PVs = LVs
>= JFS2 FileSpaces (with 1 each per 200GB LUN on fast NetApp disk.)
>
>For this TSMv5->v6.3.3 conversion, using same fast disk, which TSMv6 DB
>config is better practice?
>
> a) 6 * 200GB LUNs (LUN = PV = LV = FileSpace)
> b) 4 * 300GB LUNs ...
>
>We might eventually need to incrementally grow this TSMv6 DB up to twice
>initial size adding similar sized LUNs!
>
>--
>jim.o...@yale.edu (w#203.432.6693, c#203.494.9201, h#203.387.3030)
--
Paul Zarnowski Ph: 607-255-4757
Manager of Storage Services Fx: 607-255-8521
IT at Cornell / Infrastructure Em: p...@cornell.edu
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