Bitcoin Core version v0.14.1
on MAC OSX 10.12.4
I want to use my synology NAS for storing the blockchain data
But once i start the application, and I define a data directory on my NAS, I get these errors
Error opening block database.
Do you want to rebuild the block database now?
I click on OK, and get Error opening block database
Log file contains this information
2017-05-13 17:23:02 Bitcoin version v0.14.1
2017-05-13 17:23:02 InitParameterInteraction: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1
2017-05-13 17:23:03 Assuming ancestors of block 00000000000000000013176bf8d7dfeab4e1db31dc93bc311b436e82ab226b90 have valid signatures.
2017-05-13 17:23:03 Default data directory /Users/marc/Library/Application Support/Bitcoin
2017-05-13 17:23:03 Using data directory /Volumes/marc/bitcoin/bitcoin_core
2017-05-13 17:23:03 Using config file /Volumes/marc/bitcoin/bitcoin_core/bitcoin.conf
2017-05-13 17:23:03 Using at most 125 automatic connections (2560 file descriptors available)
2017-05-13 17:23:03 Using 32 MiB out of 32 requested for signature cache, able to store 1048576 elements
2017-05-13 17:23:03 Using 4 threads for script verification
2017-05-13 17:23:03 Using BerkeleyDB version Berkeley DB 4.8.30: (April 9, 2010)
2017-05-13 17:23:03 scheduler thread start
2017-05-13 17:23:03 Using wallet wallet.dat
2017-05-13 17:23:03 init message: Verifying wallet...
2017-05-13 17:23:03 CDBEnv::Open: LogDir=/Volumes/marc/bitcoin/bitcoin_core/database ErrorFile=/Volumes/marc/bitcoin/bitcoin_core/db.log
2017-05-13 17:23:03 Bound to [::]:8333
2017-05-13 17:23:03 Bound to 0.0.0.0:8333
2017-05-13 17:23:03 Cache configuration:
2017-05-13 17:23:03 * Using 2.0MiB for block index database
2017-05-13 17:23:03 * Using 8.0MiB for chain state database
2017-05-13 17:23:03 * Using 290.0MiB for in-memory UTXO set (plus up to 286.1MiB of unused mempool space)
2017-05-13 17:23:03 init message: Loading block index...
2017-05-13 17:23:03 Opening LevelDB in /Volumes/marc/bitcoin/bitcoin_core/blocks/index
2017-05-13 17:23:04 IO error: /Volumes/marc/bitcoin/bitcoin_core/blocks/index/000001.dbtmp: Operation not supported
2017-05-13 17:23:09 init message: Loading block index...
2017-05-13 17:23:09 Wiping LevelDB in /Volumes/marc/bitcoin/bitcoin_core/blocks/index
2017-05-13 17:23:09 Opening LevelDB in /Volumes/marc/bitcoin/bitcoin_core/blocks/index
2017-05-13 17:23:09 IO error: /Volumes/marc/bitcoin/bitcoin_core/blocks/index/000001.dbtmp: Operation not supported
2017-05-13 17:23:34 scheduler thread interrupt
2017-05-13 17:23:34 Shutdown: In progress...
2017-05-13 17:23:34 Shutdown: done
Bitcoin Core's databases (LevelDB) doesn't work with network shares. You won't be able to have the datadir on a NAS.