I run a Raspberry Pi as a TOR node and use an SD card. The last SD card died, probably due to too much data being written to it.
I'm already using the setting
So I've set up Raspbian with two read-only filesystems (
/var/log is a
tmpfs, I have a file
/var/log/tor/notices.log where TOR can write to.
I have one writable filesystem which is mounted to
/var/lib/tor, because I've seen that TOR is writing to that directory.
That's the files there are:
/var/lib/tor cached-certs cached-consensus cached-descriptors cached-descriptors.new cached-microdesc-consensus cached-microdescs cached-microdescs.new fingerprint lock state cached-status/ keys/ed25519_master_id_public_key keys/ed25519_master_id_secret_key keys/ed25519_signing_cert keys/ed25519_signing_secret_key keys/secret_id_key keys/secret_onion_key keys/secret_onion_key_ntor keys/secret_onion_key_ntor.old keys/secret_onion_key.old stats/dirreq-stats stats/hidserv-stats
Now I see via
/sys/fs/ext4/mmcblk0p3/lifetime_write_kbytes that there's quite some amount of data continuously written to that folder.
The files which get updated often are
cached-consensus cached-descriptors cached-descriptors.new cached-microdesc-consensus cached-microdescs.new lock state
cached-descriptors is by far the biggest.
I'd like to have that data written to a
tmpfs, if possible.
Do those files need to be persistent (e.g. for sure
fingerprint and everything in folder
keys, but they don't change during runtime), or is it okay if I have them in a
I could not find anything in the relay documentation.