HansSchulze
11-20-2011, 07:37 PM
I recently telnet'd into Javelin S4 in an attempt to back up another NAS, and found that the command line FTP client has some issues:
- "binary" then "get filename" of a 3.35GB (3602001920) byte file shows a message "150 3517580.0 kbytes to download". Then a message "Local: (filename) short write", then "450 Error during write to data connection". The target file was exactly 2GB. Repros consistently with different files. WinXP FTP client doesn't have this issue.
- "mget *" cannot transfer any files with spaces in the file name, possibly known issue, but should be fixed.
- The NAS replication GUI isn't straight-forward enough, no idea how to specify paths to backup, nor what all the modes mean. No online help with a sentence to describe each mode. No place to input a login name/password for the source NAS. It seems that this service is only for Javelin-to-Javelin backups, not a very common case.
- Speed is only 88 mbits/sec even though SAMBA gets almost twice that, using 9k jumbo packets. The last attempt at NAS to NAS backup was using WinXP and MS SyncToy, which at least lets me know which files are still missing, and allows comparing binary to make sure the copy was perfect. Still, this means 30 hours per terabyte. I would have hoped that FTP might be closer to metal speeds. Is there an alternative that I can use between two dissimilar NAS?
I will try WinXP to run PASV and post results.
- "binary" then "get filename" of a 3.35GB (3602001920) byte file shows a message "150 3517580.0 kbytes to download". Then a message "Local: (filename) short write", then "450 Error during write to data connection". The target file was exactly 2GB. Repros consistently with different files. WinXP FTP client doesn't have this issue.
- "mget *" cannot transfer any files with spaces in the file name, possibly known issue, but should be fixed.
- The NAS replication GUI isn't straight-forward enough, no idea how to specify paths to backup, nor what all the modes mean. No online help with a sentence to describe each mode. No place to input a login name/password for the source NAS. It seems that this service is only for Javelin-to-Javelin backups, not a very common case.
- Speed is only 88 mbits/sec even though SAMBA gets almost twice that, using 9k jumbo packets. The last attempt at NAS to NAS backup was using WinXP and MS SyncToy, which at least lets me know which files are still missing, and allows comparing binary to make sure the copy was perfect. Still, this means 30 hours per terabyte. I would have hoped that FTP might be closer to metal speeds. Is there an alternative that I can use between two dissimilar NAS?
I will try WinXP to run PASV and post results.