Differences

This shows you the differences between two versions of the page.

--- administratif:processes:change [2025/05/01 13:32] – [Implementation] remi
+++ administratif:processes:change [2025/05/28 09:48] (current) – remi
@@ Line 1: / Line 1: @@
 <!DOCTYPE markdown>
-# Change Management Process
+# Change Management
@@ Line 9: / Line 9: @@
-### Production scope :
+### Production scope
  - The [[ https://isc.hevs.ch/learn | ISC Learn Platform]]
@@ Line 17: / Line 17: @@
 ### Preparation
-#### 3 weeks (or more) before the targetted date for the change :
+#### 3 weeks (or more) before the targetted date for the change
  - Prepare all you can to limit what can go wrong on this change.
  - Prepare tests : what validates that the change is done and didn't break anything.
@@ Line 24: / Line 24: @@
 ### Validation phase
-#### At 2 weeks before :
+#### At 2 weeks before
  - Pre-check what should be done on D-day with Pierre André :
    - What will be modified
@@ Line 34: / Line 34: @@
 ### Communication
-#### 1 week before :
+#### 1 week before
   - Validate that everything is ready to run the change : GO / NOGO from Pierre André
-  - Send the communication ([[planned maintenance template link]]) either by email to Pierre André and all the/ the Teams group (eg: ISC Learn Platform)
+  - Send the communication ([[planned maintenance template link]]) either by email to Pierre André and all the people affected by the change / the Teams group (eg: ISC Learn Platform)
-#### 1 day before :
+#### 1 day before
   - Send a notification to remind of the change tomorrow
 ### Implementation
-#### On D-day :
+#### On D-day
-  - Send a sta
+  - Go on Infomaniak's dashboard > VPS > Hannibal > Snapshot to take a snapshot on the VM **data only**  (Hannibal for ISC Learn) : The system snapshot feature at Infomaniak seems broken (repeated failed tests from Hasdrubal)
-rt notification at the beginning ([[Start template link]])
+  - **NOTE : the data snapshot takes about 2h30 on Hannibal**
+  - Send a start notification at the beginning ([[Start template link]])
   - Implement the change
   - Run tests
-#### If all is fine in the change window :
+#### If all is fine in the change window
   - Send the end of maintenance notification ([[End of maintenance template link]])
-#### If there is an issue in the change window :
+#### If there is an issue in the change window
   - Continue debugging until at most 30min before the end of maintenance window
   - Either it is solved and you can send the end of maintenance notification ([[End of maintenance template link]])
     - or if the issue is not solved 30 min before the end : send a new notification with the estimated extra delay to fix the issue.
-      - if the issue will take way longer than acceptable extra time to fix, then send a incident notification ([[Incident start template link]]) and go to the [[administratif:processes:incident| Incident Process ]]
+      - if the issue will take way longer than acceptable extra time to fix, then send a incident notification ([[Incident start template link]]) and either try to fix with files from the [[ https://wiki.isc-vs.ch/doku.php?id=administratif:processes:drp:isclearn#restore_inplace_on_the_current_website | SSD NAS backup / small desktop NAS backup ]], or to restore the [[ https://wiki.isc-vs.ch/doku.php?id=administratif:processes:drp:isclearn#restore_inplace_with_the_data_snapshot_features | Infomaniak data snapshot ]]
+      - **Warning : it takes about 1h to restore a data snapshot**
+      - Prepare to go on with the [[administratif:processes:incident| Incident Process ]] in case the snapshot restoration fails to solve the issue.