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True that, if you can do them on one partition for many tenants that is
a possibility. But you have to coordinate times and releases with them
then so negapoints for that! And if they use any tools (the DBUs or
Gumbos or BVSTools of the world) you get to coordinate some of that as well.
IMHO multi-tenant is great if you are doing SAAS because everyone would
have the same toolset, or at least the same toolset AVAILABLE. With
multi-tenant that are using different software that quickly becomes a
quagmire. "I need QSECOFR Password..." (oh oh)
With network based imaged catalogs it's a matter of VARY ON a device and
let the PTFs fly. No copying, no loading, no verifying, just PTFing.
Yeah there are backups and what not of course but if the partition is
small, they're quick!
Partitions can go down to 0.05 of a processor today and for 5 users
honestly that is plenty, I think 600 CPW!! Disk is still going to be
around 70GB minimum with a 35GB Load Source for i 7.2 and up. But we
often skirt the recommended 6 drive minimum when there are super low
users like this. Just not enough total I/O to care.
And again with low users 2GB of memory could end up being just fine.
Sure an IPL is a little slower but we do those so rarely these days it
doesn't matter. Very likely a customer on an old Power5 with 5 users
might only have 512M or 1G today.
- Larry "DrFranken" Bolhuis
www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.
On 12/12/2016 1:14 PM, Charles Wilt wrote:
Good info...
I was just thinking you could save a bit on having to do
PTFs/Saves/Upgrades separately for each partition...
Plus was thinking even the smallest LPAR might be overkill...but I'm not
sure how small they can go now-a-days.
Charles
midrange.com
