SSD / HDD & Backup?

[NEPZ]

I’m looking for the best way to manage the SSD/HDD with Umbrel on my Raspberry Pi 4. I want to run a Bitcoin node and use some apps. Should I use 2 SSD, one for the node and one for the app datas (photos, medias…) then backup occasionally the SSD with my medias manually to another disk in case of disk failure? And what about Internal disk + adapter? Thanks

[smolgrrr]

I’d recommend a single, high-storage SSD. I’m running 1TB on my Umbrel, with Bitcoin Core taking up 630GB, which leaves plenty of space for other apps/data, but you might want more.

Looks a little intensive running blocks data from a different HDD →

@ykeuaksj1

I found a workaround, that is to mount HDD to blocks folder and SSD to the index folder. (I found some people use a network folder for blocks folder but sometimes they failed cuz levelDB doesn’t go along with Samba.)

1. Create additional partition on SSD
   I tried to decrease one of 3 original partitions on SSD to create additional partition, but it leaded to fatal error to filesystem. I didn’t know how to fix it so I reinstalled Ubuntu.
   During reinstall I made 4 partitions, but Ubuntu was not installed on SSD due to the Logical Volume Manager of former Ubuntu. I had to remove 3 original partitions, create 1 whole partition, format that partition, and then install new Ubuntu with 4 partitions. LVM forced me to use a whole disk so I gave up using them, and just installed Ubuntu without LVM.

/dev/sdc1 - BIOS boot
/dev/sdc2 - mounted at /
/dev/sdc3 - mounted at /boot
/dev/sdc4 - unmounted

2. Install Umbrel and Bitcoin, then stop them
   curl -L https://umbrel.sh | bash
   ~/umbrel/scripts/app install bitcoin
   ~/umbrel/scripts/stop
3. Mount HDD to blocks folder
   4.mount /dev/sdb1 ~/umbrel/app-data/bitcoin/data/blocks*
4. Mount SSD to index folder
   6.mount /dev/sdc4 ~/umbrel/app-data/bitcoin/data/blocks/index*
5. Edit /etc/fstab
   echo “/dev/sdb1 ~/umbrel/app-data/bitcoin/data/bitcoin/blocks ext4 defaults 1 1” >> /etc/fstab
   echo “dev/sdc4 ~/umbrel/app-data/bitcoin/data/bitcoin/blocks/index ext4 defaults 1 1” >> /etc/fstab
6. It was a long journey for noob who uses Linux for the first time but I learned a lot through it. One hard lesson is just use one 1TB or 2TB SSD. I wish Umbrel support separating blocks directory from data directory at application level as Bitcoin core program does.