I agree with that up to a point.

"I/O, I/O, it's all about I/O" --- me

The majority of my customers have Windows TSM servers - precisely because
there are more small/medium sites in the world than large ones.

TSM on Windows is very stable and very effective.  The only problem I have
with it is the hardware.  Only the very largest Windows servers have enough
HBA slots to support more than about 4 tape drives (if you want to have
bandwidth to really run LTO3 or LTO4 or 3592.)  And adding HBA's to a
Windows box doesn't necessarily give you more throughput.

And there is NO instrumentation in Windows to give you any idea whatever
about what is going on performance-wise on a bus with tape drives attached.
My Windows customers that have LTO3 and LTO4 attached get great capacity,
but don't come anywhere near pushing the drives at full speed.

AIX on P-series hardware, on the other hand, is a screaming I/O machine.
You can push amazing amounts of data through one.

So in general (and this is just based on my experience with my customers and
YMMV):

-if you have a site that is pushing 2 TB of data per day or less, it will
work fine on Windows, you won't have to tune anything, it will just run.

-If you have a site that needs to push more than 5-6 TB of data per day, for
sure stick with AIX.

In between, you have to plan your hardware config CAREFULLY and think a lot
about architecture before going to a Windows TSM server.

W





2009/2/25 Bos, Karel <Karel.Bos AT atosorigin DOT com>

> Hi,
>
> Use the OS you have the best support for in your shop. In our case we
> have ITSM servers running on AIX and Windows.
>
> Regards,
>
> Karel Bos
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Ian Smith
> Sent: woensdag 25 februari 2009 11:31
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Preferred TSM Platform
>
> Hi
>
>
>
> I am sure this question has been asked many times, however with server
> and OS development what is the favored OS for TSM v5? I have always
> preferred AIX however never been keen on Solaris and am considering
> Windows instead.
>
>
>
> Will v6 be compatible with the Windows platform?
>
>
>
> Ian Smith
>
>
>
> Dell Corporation Limited is registered in England and Wales. Company
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> Boulevard, Cain Road, Bracknell,  Berkshire, RG12 1LF, UK.
> Company details for other Dell UK entities can be found on
> www.dell.co.uk.
>
>