I have problems backing up to my usb hdd. I am (trying) to backup an approx 1.34TB share. The maximum depth is about 7 subfolders and contents. There are hundreds of folders but the full path of any one file does not exceed 255 characters and there are no illegal characters.
SYSTEM:
I have Full backup logs set in the email notification. These are truncated and I can not find the full backup log in the logs.
Unfortunately there is no 'Eject drive after backup is complete' in the os6 rsync options.
NTFS
Some filenames are truncated. This defeats backing up.
Errors occur saying:
rsync: mkstemp ../../../../../../<filename> (in USB_HDD_1) failed: File exists (17)
Correct - it does exist - so why is rsync even concerned (there have been no changes to it)? In the process it deletes the exising file and a file named with odd characters replaces it. But has destroyed the good existing file with something that doesn't work.
And:
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1183) [sender=3.1.1]
If the attributes were not changed there will likely be problems with future rsync backups.
EXT4
My filesystem of choice.
If the usb hdd is formatted by os6, the drive then will mount and says 'Unrecognised filesystem'.
If formatted in gparted, it is recognised but contunually flashes about every half second once mounted even though no backup is taking place.
EXT3
Not the filesystem of my choice.
If formatted in os6, again unrecognised.
If formatted in gparted (taking a lot longer than os6 - several minutes in gparted) it flashes much less often - I am counting once every 6 seconds or so.
The job has been running now for about 6 hours ... so I don't know the results.
NTFS doesn't flash (except during backup of course) but I prefer EXT4.
I can not get this large backup to succeed. Rsync seems to be missing a lot of options that rsync is capable of. But even if it is a limited implementation of rsync it should still handle deep folder structure backups. and os6 should recognise its own formatted filesystem on the usb drive.
I have just created 14 backups to break the share down to smaller backups. I can not test these until the weekend but regardless, it is not ideal. (One share - one backup is far simpler).
It also will take longer because of the scheduling.
Four of these not yet run backups already have 'Backup Completed'. Odd.
I might add, that in linux the backup job runs perfectly if I use my OS (Ubuntu) rsync via command line or grsync (gui). So it's not my data.
This makes me feel very insecure with os6 backups. IMHO not a good feeling. Who of us can check thousands of files after every backup?
I had these same issues. What I did to get around this issue was to reformat my external hard drive. Any drive that is over 2TB needs to be formated as GPT. The ReadyNAS does not handle this partioning table well. I had to set the drive with a partioning table of MBR. This meant that I could only use 2TB of that drive since that is the maximum allowed by MBR.
I never marked it as solved yet it says it is! I temporarily lost connectin to this page that is all.
Will this be read or should I repost?
Back to my first post:
formatted by gparted to to ext3, the backup finished. No errors reported but I will be checking to confirm.
So,
formatting 4TB drives in OS6 to ext3 or ext4 does not work.
I don't know where the full backup log is - IMHO it should be easily
Perhaps attaching the log file to the email for 'Full Backup Logs' instead of putting the list in line would better.
IMHO OS6 should handle 4TB drives correctly. Yes, it should keep up with drive sizes that linux is able to handle or give a categoric warning in the pdf files what the size limitation is.
motts1983, yes, the limititations of MBR addressing requires GPT for >2TB.
