slides

readme.org

@@ -7,49 +7,93 @@
 
 * Proxy Cafe: the backup edition
 * 
-volevo trovare un meme sulle torri gemelle, magari collegato al fatto che in
+No better day to talk about disaster recovery
-università avevo due tower computers, uno backup dell'altro, che chiamavo
-proprio "le torri gemelle".
 
-Comunque, edgyness a parte, la realtà spesso mema più di quanto ci aspettiamo.
+[[https://old.reddit.com/r/AskHistorians/comments/176wcxp/what_important_data_documents_or_information_was/][1]] [[https://old.reddit.com/r/sysadmin/comments/16fw1j4/how_did_911_affect_you_as_a_sysadmin/][2]] [[https://old.reddit.com/r/sysadmin/comments/d3a3ei/911_it_story/][3]]
-Storia su come i sistemi di backup di una torre, stessero sull'altra.
 
-Oh well, the sysadmins didn't receive a call from the C suites that morning anyway
+* What is a backup
-#+BEGIN_NOTES
+- not "DCIM2568 - Copy.jpg"
-* Scaletta
+- not a snapshot
-- my 9/11 moment
+- not an archive
-- the guy made fun of me
-- spiega il problema
-- elenca i dispositivi
-- elenca i possibili files
-- categorizza i files
-- frequenza
-- possibilità:
-  + rolling windows
-  + incrementale
-  + deduplicazione
-  + sincronizzazione (no backup)
-  + encryption
-- soluzioni software
-    - vedi soluzioni software
-    - categorizza soluzioni software?
-    - 3 2 1 rule
-    - try to restore
-    - what about databases and similar IO heavy software?
-- soluzioni hardware
-    - cloud, sì o no?
-    - backblaze, sì o no?
-    - nas, sì o no?
-    - elettricità
-    - come risparmiare
-    - come scegliere hdd
-    - raid? (lol)
 
-- parte tecnica sui file systems
+#+ATTR_REVEAL: :frag (roll-in)
-- bonus, what should we backup but we think it's always available?
+The only defense against:
-#+END_NOTES
 
-* reddit
+#+ATTR_REVEAL: :frag (roll-in)
-https://old.reddit.com/r/sysadmin/comments/16fw1j4/how_did_911_affect_you_as_a_sysadmin/
+- hardware failure, theft, loss
-https://old.reddit.com/r/AskHistorians/comments/176wcxp/what_important_data_documents_or_information_was/
+
-https://old.reddit.com/r/sysadmin/comments/d3a3ei/911_it_story/
+#+ATTR_REVEAL: :frag (roll-in)
+- [[https://lezzo.org/copypasta/#rotational-velocidensity][+Rotational Velocidensity+]] bit rot
+
+#+ATTR_REVEAL: :frag (roll-in)
+- ransomware infections
+
+** Code red stories
+[[./batman.jpg]]
+** What do you need to backup?
+#+ATTR_REVEAL: :frag (roll-in)
+- your laptop
+- your server
+- your mobile phone
+- your work laptop
+** 
+[[./bus.jpg]]
+
+* 
+Not all files are created equal
+** 
+It's a matter of life or death
+[[./chrome.jpg]]
+** 
+Press F to pay respect
+[[./borderlands.png]]
+
+**  
+I cry but I'll live
+[[./please_seed.png]]
+
+** 
+You forgot you are supposed to be an adult
+[[./uk.png]]
+** 
+Bonus: things that you suppose are always available
+* 
+Software features
+- Versioning
+- Incremental backups
+- Deduplication
+- Compression
+- Encryption on transport
+- Encryption at rest
+- Error correction
+- Consistency
+** 
+What about the hardware?
+
+#+ATTR_REVEAL: :frag (roll-in)
+- go to +the cloud+ someone else's computer
+- buy a NAS 🤮
+- buy a DAS and make a NAS 😎
+- buy hard drives and put them under the bed
+- +dvd+ blu rays
++ tapes (lol)
+** 
+[[./terra.jpg]]
+
+** 
+Things that get confused for backups
+- file synchronization
+- raids
+
+* A few rule of thumbs
+** 
+Either you save money or you save data
+[[./dropbox.png]]
+** 
+The 3-2-1 rule
+** 
+Always test your backups
+[[./spongebob-haiku.jpg]]
+** 
+Go low tech
+[[./collage.png]]