Hi, On 02/17/10 11:26 PM, Kevin Keane wrote: > > >> -----Original Message----- From: Bob Hetzel [mailto:b...@case.edu] >> Sent: Wednesday, February 17, 2010 1:30 PM To: >> bacula-users@lists.sourceforge.net Subject: Re: [Bacula-users] VSS >> Windows Backups >> > >>>>> 2) I couldn't get far enough for this to be an issue but I >>>>> believe bacula's handling of "Junction Points"--it gripes but >>>>> doesn't back them up, will break many things too. Can >>>>> anybody shed light on whether these will be auto-created by >>>>> the OS if they're missing? >>> >>> No idea... yet. > > Junction points are Windows equivalent of soft links. They are used > for Side-by-side assemblies (SxS). Most people actually come across > the same issue not because of junction points, but because the WinSxS > directory starts filling up their hard disk. Windows XP actually also > had junction points and WinSxS in certain cases, but with Vista, > Microsoft rearchitected the whole operating system to rely heavily on > SxS. > > Side-by-side allows you to have multiple versions of the same DLL > installed at the same time. > > These junction points are not (and cannot be) auto-created, and they > are critical to Windows Vista/2008 and later. Without the junction > points, you basically have a huge tangle of files but not a correctly > working operating system.
Junctions are NTFS reparse points *specifically* for linking directories, not individual files. From Vista and upwards NTFS actually has support real symlinks (both files and directories) in order to provide *some* compatability with POSIX OS'es. Most of the non-fatal FD errors I am seeing on W2K8 are related to directory junctions. > Windows is installed in the C:\Windows drive (by default). > Traditionally, in Windows, most the files that make up Windows are > installed into the various subdirectories - most of them into the > well known System32. With SxS assemblies, all files are installed > into C:\Windows\WinSxS. The junction points point to these files from > where older versions of Windows used to have these files. > > When you download one of Microsoft's software updates, they get > installed into the WinSxS directory, as well, and never overwrite > anything. Then the respective junction points are updated. That makes > uninstalling software updates easier. > > Another side effect is that you usually no longer need the Windows > DVD to install or remove components - all files are simply copied to > the WinSxS folder, and installing/removing features is as simple as > adding or removing the correct junction points. > > But Windows probably won't even boot (I haven't tried, but that's my > guess) without the correct junction points in place - and Windows has > no way of knowing which ones should be in place. Worse, after a > restore, the new correct files might be in place, but the junction > points may still point to the old incorrect ones. > http://blog.tiensivu.com/aaron/archives/1306-Demystifying-the-WinSxS-directory-in-Windows-XP,-Vista-and-Server-20032008.html > > > http://social.answers.microsoft.com/Forums/en-US/w7hardware/thread/450e0396-6ba6-4078-8ca0-b16bf4e22ccf > (look for the post from Debbie that explains a lot) > > > >> The Metabase is windows speak for the IIS config. Sadly, I >> believe that's not included by default as part of the system state. >> Ditto with the keys needed for it. >> >> http://support.microsoft.com/kb/269586 > > Be aware that this article is about Windows 2000. In Windows 2003, > ntbackup does back up the Metabase as part of the systemstate (at > least according to Wikipedia http://en.wikipedia.org/wiki/NTBackup - > I haven't tested it and couldn't find a Microsoft reference for > that). > > IIS 7.0 no longer has a metabase in the first place. > > > ------------------------------------------------------------------------------ > > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. See > why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ Bacula-users mailing > list Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users -- Med venlig hilsen / Best Regards Henrik Johansen hen...@scannet.dk Tlf. 75 53 35 00 ScanNet Group A/S ScanNet ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
