Re: Multiple LPARs PowerVM and internal drives -- MIDRANGE-L

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Just a mild warning about SAN / FiberChannel and IO intensive application
on IBM i: the average time of a sync write to external disks is around 200
microseconds, with internal disk is 60. If you use journals each write
became a sync write unless you activate Journal Chace.

HTH
--
Marco Facchinetti

Mr S.r.l.

Tel. 035 962885
Cel. 393 9620498

Skype: facchinettimarco

Il giorno lun 3 feb 2020 alle ore 23:05 Laurence Chiu <lchiu7@xxxxxxxxx> ha
scritto:

Looking to deploy a new environment on a Power 8 server (would prefer P9
but applications not tested on 7.3)

If we want production and dev LPARs vendor has recommended we don't use
internal drives but opt for a SAN as internal drives throughout will limit
performance. Presume you need PowerVM to manage multiple LPARS and ideally
an HMC.

Thanks
--
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