#storage

anonymiss@despora.de

Project #Silica’s coaster-size #glass plates can store #data for thousands of years, creating sustainable #storage for the world.

source: https://unlocked.microsoft.com/sealed-in-glass

A small sheet of glass can now hold several terabytes of data, enough to store approximately 1.75 million songs or 13 years’ worth of music.

#technology #archive #backup #news

paulkater@diasp.org

Storage question.

The 4TB disks in my ancient Synology NAS are getting old and close to the moment where I am considering replacing them. As I said: ancient Synology. It's well over 10 years old.

Would it an option to replace this NAS with a Nextbox? (https://shop.nitrokey.com/shop/product/nextbox-116)
I'm looking at a 4GB Ram/5TB HDD version. The only drawback I see is there are no mirrored disks, as the Synology has.

#Nextcloud #Synology #NAS #Storage

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utzer@social.yl.ms

In a groundbreaking development, researchers have announced a revolutionary breakthrough in #renewable #energy #storage that could reshape the future of sustainable power sources. The #innovation, dubbed "EcoCell," promises to overcome the longstanding challenges of storing renewable energy efficiently and affordably.

#EcoCell employs an advanced nanomaterial matrix, engineered to optimize energy absorption and retention. This matrix enables unprecedented energy density, allowing for significantly longer storage durations without significant loss. Furthermore, the design incorporates a self-regulating thermal management system, ensuring stable operation even under extreme temperature conditions.

Dr. Emily Rodriguez, lead scientist on the project, expressed her excitement: "EcoCell represents a leap forward in energy storage #technology. With its ability to store vast amounts of renewable energy, we could eliminate the intermittent nature of sources like solar and wind power. This could have a profound impact on global energy distribution, reducing our reliance on fossil fuels."

The implications of this discovery are far-reaching. By addressing energy storage limitations, EcoCell could accelerate the adoption of renewable energy on a global scale, significantly reducing carbon #emissions. While practical applications are still in the testing phase, #industry experts are optimistic that this breakthrough will reshape the landscape of sustainable energy production, bringing us closer to a greener and more sustainable future.
-ChatGPT

kennychaffin@diasp.org

The US energy storage industry has been riding the coattails of wind and solar power, and things are about to get interesting. Pumped hydropower continues to dominate the storage field by a wide margin, but lithium-ion batteries are making inroads and new technologies are also creeping in. Oddly enough, Texas is front and center in the new activity despite persistent attempts by Republican office holders in the state to tilt the scales in favor of fossil energy.

https://cleantechnica.com/2023/08/19/the-energy-storage-revolution-is-coming-to-texas-and-its-going-to-be-crazy/

#energy #storage

me@nerdpol.ch

#bash #Help > Delete a Folder in all #BTRFS snapshots.

So my server ran full, and it has years of snapshots, i actually do not want to delete, however i spotted (with the amazing ndcu) some 500GB of Backups i do not need. So i want to delete them.

apparently to do this you need to set each snapshot to writable and delete the file/folder you want. (see https://www.suse.com/support/kb/doc/?id=000019594)

they have also a script there doing this in a handle able manner. however it is only for Files and not for Folders. But i need to delete Folders. Ideally i want to be ably to provide the path to it so i do not delete some identically named folders elsewhere.
I tried to adapt the script but i do not quiet understand it.

original script
```
file=$1

while read a
do snapshot=$(echo ${a%%/$file})
btrfs property set $snapshot ro false
rm -f $a
btrfs property set $snapshot ro true
done < <(find /.snapshots/ -name $file)

**question 1:**
what does this line exactly do?

do snapshot=$(echo ${a%%/$file})
```
question 2
in what way/order does this "< <" syle of conding feed the paths to the loop?

because this (my for folders adapted test script)

file=$1 
while read a
         do snapshot=$(echo ${a%%/$file})
echo "$snapshot snpsho"
          # btrfs property set $snapshot ro false
           #rm -rf $a ## delete command adapted for folders
                echo "foundet $a"
           #btrfs  property set $snapshot ro true
         done < <(find /home/ -type d -path $file) ## find command adapted for folders and paths


this does not give me any output, altough the find command on its own totally does

rant

also why, do we still not have tools that do make sense with btrfs filesystems. like:
- gui option in filemanager to delete a file/folder though all spanshots
- gui option in filemanager to easily compare/resore older versions of a file. (like windows)
this should be quiet easy and would be heavily helpfull...

#linux #btrfs #shell #community #snapshot #storage #admin