Pre-confluence:Ceph testing and development cluster: Difference between revisions
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* The gateway provides access by the cluster nodes to the world using NAT | * The gateway provides access by the cluster nodes to the world using NAT | ||
* The cluster nodes connect to the gateway (cephtest) using a switch filched from the server room (ex: "smartswitch"). The switch has been reset to factory defaults and therefore does not operate in any sort of managed mode | * The cluster nodes connect to the gateway (cephtest) using a switch filched from the server room (ex: "smartswitch"). The switch has been reset to factory defaults and therefore does not operate in any sort of managed mode | ||
== Network settings == | == Network settings == | ||
| Line 43: | Line 29: | ||
|129.94.172.11 | |129.94.172.11 | ||
|} | |} | ||
== Setting up a PC == | |||
* In the HP PC's BIOS reset the security to factory defaults | |||
== Installing Debian == | |||
* Use the USB boot key on top of the cluster | |||
* Allocate 512M for EFI, 50G for root, and 1G for swap (which allows space on the SSD for a local OSD) | |||
* Tell the installer to set up SSH server ONLY | |||
* Install (and configure) unattended-upgrades, systemd-timesyncd, rsync, man-db, tcpdump lsof, strace | |||
* Set UsePAM to NO in sshd_config | |||
* Add "selinux=0 audit=0 ipv6.disable=1" to /etc/default/grub and run "grub-mkconfig -o /boot/grub/grub.cfg". Reboot | |||
* Once the SSH keys have been set up, disable PasswordAuthentication in sshd_config and restart sshd | |||
* Copy authorized_keys for the nodes from cephtest. | |||
== Installing Ceph == | |||
* Also see [[Storage and compute cluster]] | |||
* The cluster has been bootstrapped with a single mon daemon running on node01 | |||
Latest revision as of 12:06, 1 Mayıs 2024
Overview
- The *Ceph testing and development cluster* is a desktop Ceph cluster built using old lab HP Elitedesk mini PC's
- It is located in Peter's cubicle
- The cluster itself is on a private subnetwork behind one of the PC's (the top one in the stack) which functions as a gateway
- The gateway is cephtest.cse.unsw.edu.au (129.94.173.173) and can be reached by SSH from CSE's trust, untrust, and server subnetworks
- The cluster nodes should be added to /etc/hosts on cephtest. The cluster nodes should have no domain component in their names
- The gateway provides access by the cluster nodes to the world using NAT
- The cluster nodes connect to the gateway (cephtest) using a switch filched from the server room (ex: "smartswitch"). The switch has been reset to factory defaults and therefore does not operate in any sort of managed mode
Network settings
| Description | Value |
|---|---|
| Configuration | Static |
| DHCP | None |
| Subnetwork | 192.168.155.0/24 |
| Gateway | 192.168.155.1 |
| DNS server(s) | 129.94.172.11 |
Setting up a PC
- In the HP PC's BIOS reset the security to factory defaults
Installing Debian
- Use the USB boot key on top of the cluster
- Allocate 512M for EFI, 50G for root, and 1G for swap (which allows space on the SSD for a local OSD)
- Tell the installer to set up SSH server ONLY
- Install (and configure) unattended-upgrades, systemd-timesyncd, rsync, man-db, tcpdump lsof, strace
- Set UsePAM to NO in sshd_config
- Add "selinux=0 audit=0 ipv6.disable=1" to /etc/default/grub and run "grub-mkconfig -o /boot/grub/grub.cfg". Reboot
- Once the SSH keys have been set up, disable PasswordAuthentication in sshd_config and restart sshd
- Copy authorized_keys for the nodes from cephtest.
Installing Ceph
- Also see Storage and compute cluster
- The cluster has been bootstrapped with a single mon daemon running on node01