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mr.greywater

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IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

https://kb.synology.com/en-nz/DSM/help/DSM/StorageManager/storage_pool_data_scrubbing?version=7

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

That being said, I'm not so sure it's actually the hdd with the issues, it could also be the phone sending garbage or the network stack having some corruption.

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

SMART relies on the hdd itself to detect and figure out if it get's corrupted. It's far more reliable to run data scrubbing in your synology and verify data consistency using the raid parity data (If you're using RAID)

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

i could be wrong though

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

not for comparison with the client upload for integrity

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

it looks to me the hash is only used for duplicate detection

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

just weird they're saying there is a discrepancy between manual and phone upload. if it's the server hdd, then there shouldn't be a difference however you send the images

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

maybe, could also be the phones themselves sending garbage, but if you compare the hash, then really that shouldn't be possible

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

and fails in 20% of cases via phone, then there is something wrong

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

i dunno, if it really only happens when uploaded via phone, and not when manually uploaded

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

I highly doubt it successfully writes and reads it once from the disk and then later suddenly corrupts itself, that would be really weird.

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

TCP's error correction isn't foolproof though. I guess either the hash isn't compared by immich after the upload, or is compared before it's written to disk. I don't understand how the file could be corrupted otherwise, assuming it hasn't moved (e.g. through defragmentation)

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

if the hash is already compared after writing to disk then this really is weird.

53 replies

IImmich

•Created by bbernhard on 1/24/2025 in #help-desk-support

IMMICH upload destroy photos, sometimes

I'm not saying you're wrong, but most hard drives only use 512bytes as "virtual" sector size nowadays, usually they are actually 4kB with 512Bytes only used as an interface/emulation layer. Either way, could maybe be resolved by checking the sha1 before uploading on the client, and later comparing it to the uploaded file on the server, retrying if the hash doesn't match.

53 replies

IImmich

•Created by laubi on 1/23/2025 in #help-desk-support

Fake grey'ed out pictures after updating to 1.125.1