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IBM's Logical Volume Manager under AIX is rock solid in a concurrent environment such as OPS. I've been pounding many Gigabytes worth of concurrently accessed SSA disk subsystems for quite a while without any failures or hiccups.
While I haven't seen any of Sun's ( or whatever third party ) LVM stuff, HP's version is a little crude.
The only draw-backs I see, if any, is that HACMP can be difficult to set up, is definitely proprietary, and the supplied DLM is limited ( at least in 4.1 and I believe 4.2 ) to 255MB memory. I've configured over 100k PCM locks over two distinct "sets" of instances across nodes and haven't reached 50% of this limit yet.
-Kevin
--
remove the x for email response
Scott Cote <scottcote_at_contractor.net> wrote in article
<35A2D814.8C7C0E4B_at_contractor.net>...
> Please save me from marketing thugs.
>
> I am setting up a brand spanking new data center and am trying to make
> an informed decision as to what platform I am going to run OPS on.
> Platforms under consideration:
>
> Sun ES450
> HP K box
> IBM rs6000 F50
>
> I don't want to even consider an NT class machine (I am a UNIX bigot).
>
> If you have any advice regarding hardware (server/storage/network) - I
> am all ears (eyes actually).
>
> Thanks,
>
> SCott
>
> Scott Cote
> scottcote_at_contractor.net
> (972) 672 - 6484
>
>
Received on Tue Jul 07 1998 - 21:54:32 CDT