5 ms·

I'm curious who would use Postgres on S390x, and, I guess, who uses Linux on S390x in general?

heelix 3y ago
Honestly, it just works. I can do a docker image that runs on aarch64, amd64, and s390x. For the SpringBoot apps - the hardware is rock solid and far more important, cheaper and under provisioned than the other 'standard' compute for those who have piles of legacy systems. OpenShift on zSeries is not a lot different than Intel based boxes.
- maximilianburke 3y ago
  Yeah, that all makes sense. Is it just big financial instututions that doing this? I can't go to IBM Cloud and kick off some S390x VMs, can I?
  - mnd999 3y ago
    If you have an enterprise deal I think you can.
  - opencl 3y ago
    You can indeed get S390X VMs from IBM cloud, either running z/OS or Linux: https://cloud.ibm.com/docs/vpc?topic=vpc-vs-profiles&interface=ui https://cloud.ibm.com/docs/vpc?topic=vpc-vs-profiles&interfa...
  - xet7 3y ago
    Open Source maintainers can ask for a) ssh access to s390x VM b) web console access where it's possible to create and remove VMs, for example 2 VMs, 8 GB RAM per VM With some distro like RHEL, SUSE, Ubuntu. One mainframe runs very many VMs. All access is monitored.
    - johnmertic 3y ago
      Is this the LinuxONE Community Cloud, or a different resource?
      - xet7 3y ago
        Yes, this is LinuxONE Community Cloud.
tristan957 3y ago
I wonder if IBM Cloud runs it on s390x.
- vaxman 3y ago
  When you type Softlayer.com into a web browser what happens and why?
  - tristan957 3y ago
    I don't know the why.
archgoon 3y ago
[dead]
solatic 3y ago
The big claim to fame for the IBM Z series is supporting hot failover so the workload will never go offline. For web tier or app tier, where you want to scale horizontally anyway, it's pointless overkill, but for relational databases that have a maximum of one write master, you could make the argument that it's valuable. I'd be interested in reading the perspective of someone actually deploying it though.
- ttfkam 3y ago
  Bidirectional replication (aka multi-master) was added to Postgres in v16. Most others like MySQL, MS SQL Server, Oracle, DB2, et al have supported it for quite a while now. Neat project, but there are easier, more cost-efficient, and well-documented methods available now.

Honestly, it just works. I can do a docker image that runs on aarch64, amd64, and s390x. For the SpringBoot apps - the hardware is rock solid and far more important, cheaper and under provisioned than the other 'standard' compute for those who have piles of legacy systems. OpenShift on zSeries is not a lot different than Intel based boxes.

maximilianburke 3y ago
Yeah, that all makes sense. Is it just big financial instututions that doing this? I can't go to IBM Cloud and kick off some S390x VMs, can I?
- mnd999 3y ago
  If you have an enterprise deal I think you can.
- opencl 3y ago
  You can indeed get S390X VMs from IBM cloud, either running z/OS or Linux: https://cloud.ibm.com/docs/vpc?topic=vpc-vs-profiles&interface=ui https://cloud.ibm.com/docs/vpc?topic=vpc-vs-profiles&interfa...
- xet7 3y ago
  Open Source maintainers can ask for a) ssh access to s390x VM b) web console access where it's possible to create and remove VMs, for example 2 VMs, 8 GB RAM per VM With some distro like RHEL, SUSE, Ubuntu. One mainframe runs very many VMs. All access is monitored.
  - johnmertic 3y ago
    Is this the LinuxONE Community Cloud, or a different resource?
    - xet7 3y ago
      Yes, this is LinuxONE Community Cloud.

tristan957 3y ago

I wonder if IBM Cloud runs it on s390x.

vaxman 3y ago
When you type Softlayer.com into a web browser what happens and why?
- tristan957 3y ago
  I don't know the why.

archgoon 3y ago

[dead]

solatic 3y ago

The big claim to fame for the IBM Z series is supporting hot failover so the workload will never go offline. For web tier or app tier, where you want to scale horizontally anyway, it's pointless overkill, but for relational databases that have a maximum of one write master, you could make the argument that it's valuable. I'd be interested in reading the perspective of someone actually deploying it though.

ttfkam 3y ago
Bidirectional replication (aka multi-master) was added to Postgres in v16. Most others like MySQL, MS SQL Server, Oracle, DB2, et al have supported it for quite a while now. Neat project, but there are easier, more cost-efficient, and well-documented methods available now.