Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Bowie Bailey
Sean Carolan wrote: >> If you use a file-oriented approach, traversing the directories is very >> slow, and the restore will be much worse as it tries to reconstruct the >> hardlinks. An image copy will be much faster, but keep in mind that you >> have to load it all back from the tape before bein

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Sean Carolan
>> Would this go faster if I unmounted the partition and tried to do a >> block-level copy of the entire thing?  How would you handle this? In case anyone else runs into this in the future, Bacula does support block-level backups. I'm running one now and it's much faster than trying to do a file-

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Josh Malone
On Tue, 2 Mar 2010 10:53:15 -0600, Sean Carolan wrote: > Hello BackupPC users: > > We have a BackupPC system that has been working well for us for the > past three years.  There is about 1.2 terabytes of data on our > BackupPC partition and we'd like to be able to spool it off to tape > for off-s

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Gerald Brandt
I archive to a USB drive, and it took 20 hours to archive 282 GB of data. Yikes. That's roughly 1.3 MB/s We were CPU bound when creating the gzip file, I think. Gerald - "Sean Carolan" wrote: > Hello BackupPC users: > > We have a BackupPC system that has been working well for us for

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Sean Carolan
> If you use a file-oriented approach, traversing the directories is very > slow, and the restore will be much worse as it tries to reconstruct the > hardlinks.  An image copy will be much faster, but keep in mind that you > have to load it all back from the tape before being able to access any > o

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Les Mikesell
On 3/2/2010 10:53 AM, Sean Carolan wrote: > Hello BackupPC users: > > We have a BackupPC system that has been working well for us for the > past three years. There is about 1.2 terabytes of data on our > BackupPC partition and we'd like to be able to spool it off to tape > for off-site storage. W

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Tyler J. Wagner
On Tuesday 02 March 2010 16:53:15 Sean Carolan wrote: > Would this go faster if I unmounted the partition and tried to do a > block-level copy of the entire thing? How would you handle this? Probably. Without knowing the specifics of your tape archive process, it is likely having an issue deali

[BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 Thread Sean Carolan
Hello BackupPC users: We have a BackupPC system that has been working well for us for the past three years.  There is about 1.2 terabytes of data on our BackupPC partition and we'd like to be able to spool it off to tape for off-site storage.  We have an HP d2d device that gets about 50-60 MB/s th