[ale] Getting rid of VMware

[Jim Kinney]

The subject line says it all.

On March 14, 2021 3:54:01 AM EDT, Tod Fassl via Ale <ale at ale.org> wrote:
>If your database server doesn't need all 24 cores, then just run your 
>print server on there too. Make it your file server, your
>authentication 
>server, your DNS server, your DHCP server, your NTP server, and while 
>you're at it, your condor central manager too. After all, that is 
>*exactly* what you are doing by running all those virtual machines on 
>there. Only thing is you're adding a $10K licensing fee and a whole lot
>
>of other headaches on top of it.
>
>
>If a single 24-core machine can handle all the stuff I am running on 
>those virtual machines, why in the world would I pay VMWare an extra 
>$10K instead of just running them on a bare metal Linux server? The 
>principle here is that hardware is cheaper than staff time -- which is 
>*exactly* my point! I don't want to have to dick around with VMWare
>when 
>Linux does everything I need it to do.
>
>
>On 3/12/21 11:15 AM, DJ-Pfulio via Ale wrote:
>> On 3/12/21 11:47 AM, Tod Fassl via Ale wrote:
>>> Now, running your vm on someone else's cluster -- that I can
>>> understand. But running your own? No, that's dumb.
>> Not if your server has 24 cores and the DBMS only needs 2 to work
>> fast.
>> More cores and more RAM doesn't always translate to faster
>> results.
>>
>> In a business, there is a trade off in having optimal use for HW.
>> If the DBMS is just 5% slower, but you can get 10 more systems
>> on the same HW for $0, that would be a huge win most places.
>>
>> I see people with 16-core systems who decide to run a 16-core VM
>> with 32G of RAM because they can. Then we have them explain their
>> workload and suggest a 4 vCPU and 8GB RAM VM.  Crazy, but it runs
>> faster.
>> With Linux, it is usually best to begin with 1-2 vCPUs and only
>> scale up when you know it is actually necessary.
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