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| From: | Dale Qualls |
| Subject: | Re: [rdiff-backup-users] Problems backing up to CIFS using rdiff-backup |
| Date: | Mon, 15 Nov 2010 07:57:57 -0600 |
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I had repeated issues backing up to a Lacie 3TB NAS (actually tried 2 of these units) regardless of it being attached to the network or directly to a server via USB or Firewire. They're just plain junk, IMHO.
I moved to a pair of 1TB WD Passport drives and haven't had an issue since.
>>> Jordi Mallach <address@hidden> 11/15/2010 5:03 AM >>> Hi list! I'm trying to backup a system to a Lacie NAS system, and no matter what I try, it keeps breaking on me. The system I'm trying to backup is nothing special: it's a backup of an ext3 filesystem mounted from a LVM snapshot -- something I've been doing for years without years, so this shouldn't be a suspect. What's new (for me) on this setup is that the destination is mounted via CIFS to a NAS that is mounted in localhost. This is the fstab line used to mount the appliance, as suggested in the rdiff-backup FAQ: //mbackup/share /srv/backup cifs noauto,defaults,nocase,directio,sfu,credentials=/etc/samba/creds.txt 0 0 After reading a few very old rdiff-backup threads, I learned how to find out what version of Samba the NAS is running. Originally 3.0, I got it upgraded to 3.4 via a firmware update. Unfortunately, the same errors persist. multiscan3:~# cat /proc/fs/cifs/DebugData Display Internal CIFS Data Structures for Debugging --------------------------------------------------- CIFS Version 1.52 Active VFS Requests: 0 Servers: 1) Name: 192.168.1.154 Domain: WORKGROUP Mounts: 1 OS: Unix NOS: Samba 3.4.1 Capability: 0xf3fd SMB session status: 1 TCP status: 1 Local Users To Server: 1 SecMode: 0x3 Req On Wire: 0 MIDs: Shares: 1) \\mbackup\share Uses: 1 Type: NTFS DevInfo: 0x0 Attributes: 0x1002f PathComponentMax: 255 Status: 1 type: 0 I have tried with CIFS Linux extensions both enabled and disabled. Kernel is 2.6.24; unfortunately it's not trivially upgradeable, so for now it needs to stick at this version. Finally, I've found out that passing --exclude-special-files --no-hard-links (but not just --no-hard-links) to the rdiff-backup invocation appears to make a backup run go pass the first few seconds. I've still haven't found out if it succeeds because the initial backup is huge. This NAS *should* be offering a NFS share, but that is nowhere to be found. Finally, rdiff-backup is 1.2.5, as found in Debian lenny. Would going 1.2.8 help at all? If there are no related fixes, I would not bother doing a package backport. Can anyone hint me of what might be going on? Is anyone successful in this kind of setup? MANY thanks! Jordi The rdiff-backup error I'm getting is: Warning: hard linking not supported by filesystem at /srv/backup/openvz/multiscan/ldap.102/rdiff-backup-data SpecialFileError vg01-vzdata/private/102/aquota.group [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/aquota.user [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/bzcmp [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/bzegrep [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/bzfgrep [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/bzless [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/ksh [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/mt [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/nc [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/netcat [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/pidof [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/rbash [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/rnano [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/rzsh [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/sh [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/bin/zsh [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/dev/console [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/dev/core [Errno 95] Operation not supported SpecialFileError vg01-vzdata/private/102/dev/fd [Errno 95] Operation not supported Exception '' raised of class '<type 'exceptions.AssertionError'>': File "/var/lib/python-support/python2.5/rdiff_backup/robust.py", line 32, in check_common_error try: return function(*args) File "/var/lib/python-support/python2.5/rdiff_backup/rpath.py", line 119, in copy elif rpin.isfifo(): rpout.mkfifo() File "/var/lib/python-support/python2.5/rdiff_backup/rpath.py", line 1016, in mkfifo assert self.isfifo() Exception '' raised of class '<type 'exceptions.AssertionError'>': File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 304, in error_check_Main try: Main(arglist) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 324, in Main take_action(rps) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 280, in take_action elif action == "backup": Backup(rps[0], rps[1]) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 346, in Backup backup.Mirror(rpin, rpout) File "/var/lib/python-support/python2.5/rdiff_backup/backup.py", line 38, in Mirror DestS.patch(dest_rpath, source_diffiter) File "/var/lib/python-support/python2.5/rdiff_backup/connection.py", line 450, in __call__ return apply(self.connection.reval, (self.name,) + args) File "/var/lib/python-support/python2.5/rdiff_backup/connection.py", line 370, in reval if isinstance(result, Exception): raise result Traceback (most recent call last): File "/usr/bin/rdiff-backup", line 30, in <module> rdiff_backup.Main.error_check_Main(sys.argv[1:]) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 304, in error_check_Main try: Main(arglist) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 324, in Main take_action(rps) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 280, in take_action elif action == "backup": Backup(rps[0], rps[1]) File "/var/lib/python-support/python2.5/rdiff_backup/Main.py", line 346, in Backup backup.Mirror(rpin, rpout) File "/var/lib/python-support/python2.5/rdiff_backup/backup.py", line 38, in Mirror DestS.patch(dest_rpath, source_diffiter) File "/var/lib/python-support/python2.5/rdiff_backup/connection.py", line 450, in __call__ return apply(self.connection.reval, (self.name,) + args) File "/var/lib/python-support/python2.5/rdiff_backup/connection.py", line 370, in reval if isinstance(result, Exception): raise result AssertionError Fatal Error: Lost connection to the remote system -- Jordi Mallach <address@hidden> :: Àrea de Sistemes, Seguretat Institut Tecnològic d'Informàtica :: i Programari Lliure Telèfon: 96 387 94 87 :: E-mail: address@hidden _______________________________________________ rdiff-backup-users mailing list at address@hidden http://lists.nongnu.org/mailman/listinfo/rdiff-backup-users Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki *************************************************************************** The preceding message and any attachments may contain confidential information protected by the attorney-client or other privilege. 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