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Update A chat about saving data

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A-chat-about-saving-data.md
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# **How to Save Data at SwissFEL: A Totally Serious Guide** # **How to Save Data at SwissFEL: A totally serious guide**
**Hey, look at my nice data!** **Hey, look at my nice data!**
*What a load of BS!* *What a load of bs!*
**Oy, no need to be rude!** **Oy, no need to be rude!**
*I’m not! I mean, what a load of **Beam Synchronous** data!* *I’m not! I mean, what a load of **Beam Synchronous** data!*
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**I used this cool command-line script `bs...`** **I used this cool command-line script `bs...`**
*Ooooh... I’m going to stop you right there.* *Ooooh... I’m going to stop you right there.*
**But my BS command works; there must be a problem with the sources!** **But my bs command works; there must be a problem with the sources!**
*Calm down, detective, try saving each source individually with the `bs` command...* *Calm down, detective, try saving each source individually with the `bs` command...*
**OK, hang on... what the?! They *both* save fine on their own!** **OK, hang on... what the?! They *both* save fine on their own!**
*Yep, the issue is when you try and save sources from different IOCs/devices with the `bs` command. The data is taken from the **dispatcher**. If the two sources don’t arrive at the dispatcher within a small time window, only the first source is sent in the message. Different sources arrive at the dispatcher at **different times**.* *Yep, the issue is when you try and save sources from different IOCs/devices with the `bs` command. The data is taken from the **dispatcher**. If the two sources don’t arrive at the dispatcher within a small time window, only the first source is sent in the message. Different sources arrive at the dispatcher at **different times**.*
**What type of BS is that?! I can't wait and wait...** **What type of BS is that?! I can't wait and wait...**
*Good question. Some BS data comes from **pipelines**, where calculations and moving data around **takes time**. You’re not just saving numbers—you’re saving processed results.* *Good question. Some bs data comes from **pipelines**, where calculations and moving data around **takes time**. You’re not just saving numbers—you’re saving processed results.*
**Pipelines?! I want data, not plumbing problems!** **Pipelines?! I want data, not plumbing problems!**
*Think of pipelines as hardworking elves doing data analysis behind the scenes. No pipelines, more work for you.* *Think of pipelines as hardworking elves doing data analysis behind the scenes. No pipelines, more work for you.*
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**❌ Don’t Say:** **❌ Don’t Say:**
*Beam synchronous PV* *Beam synchronous PV*