This list includes things that require the cluster to be turned off.
Purpose
This checklist can be used for
1) A list of things that require the cluster to be turned off. Or are tasks that are more safely done when the cluster is turned off, even if not strictly required.
2) A list of things to consider doing when the a clusters is being turned off / rebooted for other reasons.
Examples of activities taken in past maintenance windows:
During this down-time, we intend to:
- Test new GPU software capabilities
- Update the OS of the storage system.
- Update the BIOS of the 4 GPU clusters.
- Update the UPS software to address current software's limitations.
- Confirm backups and review other system software configurations.
Maintenance Checklist
Activity | Item/ topic | Who decides? (Presumed Lulu, unless marked otherwise) | Notes or comments |
|---|---|---|---|
| P/T | Network / switches | Project lead or ticket owner | |
| P/T | Disk changes / swaps / repairs | Project lead or ticket owner | |
| P/T | Add / remove nodes | Project lead or ticket owner | |
| D | BIOS / firmware updates (and why it's done...) | Michael | |
| D | Synology / storage system Updates | Michael | |
| D | Firmware updates, including drives, cards, etc. | Michael | |
D | Kernel updates
| ||
| D | OS Updates
| ||
| D | UPS / check / updates / settings |
Key:
P/T: Default answer is "no action". This is here in case a Project or Ticket has an impact on this topic, which is to be done during the maintenance work.
D: Discretion or decision required. May very well be, "nothing this time around".
Sequence taken during maintenance
· Schedule / notify representative / users
Evaluate hard drives
Verify backups
· Disable outside access
· Delete jobs
· Chkdsk
· Shutdown headnode & nodes
· Synology update - requires reboot. Safer with headnode off
· Reboot switches
· Boot synology
· Boot headnode
o iSCSI config- (on startup) 5 sec ping for timeout, will change to 10 & 15
· Test UPS shutdown error
· Reboot anything that needs
· Boot nodes
· Enable access
· Send email
• UPS config - 10 seconds poll,