|
wrote:
I have customers using both the(physical) pHMC and (virtual) vHMC. In a
larger VMWare environment where you have an administrator that's
experienced
the vHMC is great. But it takes a few VMWare skills to do it right.
Getting the networking right and doing the updates seems to be the biggest
hang up. Experience counts. DR on the VMWare environment is in my mind
a
major concern, going back to the VMWare skill set.
In a small shop where there might be one POWER system and one HMC, despite
the price differences I usually suggest the pHMC. Most often those shops
have smaller VMWare environments and the level of administration
sophistication is not quite as high. The problem comes in when there is a
major outage of the VMWare system. If that happens and there is an event
on
the POWER system that has to be dealt with (Often they are concurrent) then
the POWER system is completely depended on a VMWare environment that is
potentially not available.
So, small shop with limited VMWare skills, or more advanced skills in
VMWare? Don't create DR dependencies where they could bite like a white
shark.
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
LRoberts@xxxxxxxxxxxxxxx
Sent: Tuesday, March 07, 2017 1:25 PM
To: Midrange Systems Technical Discussion
Subject: Power 8 vHMC versus HMC Stand-alone Pros and Cons
We are planning on upgrading to a Power 8 (8286-41A) in the next 6 months.
We are currently on V7.1 TR11 and will upgrade to V7.3 after hardware
upgrade.
I am wondering if anyone can share their insight on any pros and cons of
going with the vHMC (5765-HMV) rather than the stand alone HMC 7042-CRx
I am aware of the pricing difference.
My concern is more that it will be housed on the network VMware and that
the
IBM i does not call home if there is an issue.
Has anyone had any issues that they could not connect to the vHMC and that
the network VMware folks had to resolve or any other issues ?
Thanks in Advance
Laura R
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