BonsaiJoe
53 Posts
Quote from BonsaiJoe on January 30, 2018, 6:31 pm
Hi,
we are setting up our first petasan cluster...btw. a great project.... the plan is to have 2 system disks as raid 1 (mirroring) for redundancy.
we have not seen an option to create a software raid at installation time is there any other way to workaround this?
btw. the mainboard provides also an INTEL "fake raid" controller but if we try to use this we still see the 2 boot SSDs.
thanks
Hi,
we are setting up our first petasan cluster...btw. a great project.... the plan is to have 2 system disks as raid 1 (mirroring) for redundancy.
we have not seen an option to create a software raid at installation time is there any other way to workaround this?
btw. the mainboard provides also an INTEL "fake raid" controller but if we try to use this we still see the 2 boot SSDs.
thanks
admin
2,930 Posts
Quote from admin on January 30, 2018, 8:37 pm
Currently the only way is to use hardware raid...Glad you like the project
Currently the only way is to use hardware raid...Glad you like the project
BonsaiJoe
53 Posts
Quote from BonsaiJoe on January 31, 2018, 2:42 pm
thanks for your fast reply maybe it will be a great feature for the next release
thanks for your fast reply maybe it will be a great feature for the next release
admin
2,930 Posts
Quote from admin on January 31, 2018, 3:37 pm
I put the software raid in our suggested feature list
I put the software raid in our suggested feature list
stevehughes
10 Posts
Quote from stevehughes on September 7, 2021, 8:47 am
Hi, an old thread I know.
In 2.8 is there any way to use software RAID (either Linux software RAID or Intel fake raid) for the system drive?
Hi, an old thread I know.
In 2.8 is there any way to use software RAID (either Linux software RAID or Intel fake raid) for the system drive?
admin
2,930 Posts
Quote from admin on September 7, 2021, 7:54 pm
No not yet. We have done most of the code in the installer but it is not completed yet. If you need RAID for OS, you have to use hardware RAID now. Note it is not crucial to have redundancy in host OS disk as the system is highly available from a cluster level.
No not yet. We have done most of the code in the installer but it is not completed yet. If you need RAID for OS, you have to use hardware RAID now. Note it is not crucial to have redundancy in host OS disk as the system is highly available from a cluster level.
stevehughes
10 Posts
Quote from stevehughes on September 8, 2021, 1:42 am
What would be the process for recovering a node in the event the system drive fails? I know there would be no loss of production data but it might require considerable effort to re-instate the node.
What would be the process for recovering a node in the event the system drive fails? I know there would be no loss of production data but it might require considerable effort to re-instate the node.
admin
2,930 Posts
Quote from admin on September 8, 2021, 7:51 am
The recommended process:
- For the first 3 nodes: install OS then deploy with "Replace Management Node"
- For nodes 4 and above: install OS, join cluster, in the OSD list do not re-add the existing OSD disks else they will be reformatted as new OSDs (there is an "info" paragraph on the page that says this), just leave old OSDs as is and they will be used deployment completes.
In coming 2.9 we now have a "Replace Node" to deal with both cases to make second case clearer. The existing replace focused on Management nodes only as it requires more automation.
The recommended process:
- For the first 3 nodes: install OS then deploy with "Replace Management Node"
- For nodes 4 and above: install OS, join cluster, in the OSD list do not re-add the existing OSD disks else they will be reformatted as new OSDs (there is an "info" paragraph on the page that says this), just leave old OSDs as is and they will be used deployment completes.
In coming 2.9 we now have a "Replace Node" to deal with both cases to make second case clearer. The existing replace focused on Management nodes only as it requires more automation.
Mattis
7 Posts
Quote from Mattis on May 30, 2024, 3:30 pm
Is there a Plan to enable multi Boot Disk?
Is there a Plan to enable multi Boot Disk?
admin
2,930 Posts
Quote from admin on May 30, 2024, 6:21 pm
Yes, but it is early to say if it will be in next version 4.0. For now you will need hardware raid if you need to mirror.
Yes, but it is early to say if it will be in next version 4.0. For now you will need hardware raid if you need to mirror.
