Re: [Bacula-users] Backup to disk then tape

2006-05-02 Thread Alan Brown
On Tue, 2 May 2006, Bill Moran wrote: The time it takes to get them back onsite alone is too slow for most recovery scenerios. Hence the necessity for job cloning - AND a decent data firesafe. What does a firesafe have to do with this? Data backed up to disk can still be erased. A New Ze

Re: [Bacula-users] Backup to disk then tape

2006-05-02 Thread Bill Moran
On Tue, 2 May 2006 23:38:42 +1000 "James Harper" <[EMAIL PROTECTED]> wrote: > > _never_ replaces backup. I can have 1000 redundant systems dispersed > > across the entire galaxy, and if a user accidentally deletes an > > important record, I'll still need to go to backup to recover it, > > since t

RE: [Bacula-users] Backup to disk then tape

2006-05-02 Thread James Harper
> _never_ replaces backup. I can have 1000 redundant systems dispersed > across the entire galaxy, and if a user accidentally deletes an > important record, I'll still need to go to backup to recover it, > since the redundant systems will faithfully delete it from all mirrors. There are filesyste

Re: [Bacula-users] Backup to disk then tape

2006-05-02 Thread Bill Moran
On Tue, 2 May 2006 11:18:53 +0100 (BST) Alan Brown <[EMAIL PROTECTED]> wrote: > On Mon, 1 May 2006, Bill Moran wrote: > > >> I backup ~20Tb to LTO2. The tapes run almost as fast as most of the > >> disk arrays (MSA 1000 and Nexsan Atabeast) > > > > I guess I didn't make my point. > > > > The tape

RE: [Bacula-users] Backup to disk then tape

2006-05-02 Thread Alan Brown
On Tue, 2 May 2006, James Harper wrote: . Allows very frequent incremental backups (hourly, depending on the servers ability to cope with the extra load) Do you really want to dump those incrementals to tape or just generate a differental? . Ability to restore to any given backup point, eg

Re: [Bacula-users] Backup to disk then tape

2006-05-02 Thread Alan Brown
On Mon, 1 May 2006, Bill Moran wrote: I backup ~20Tb to LTO2. The tapes run almost as fast as most of the disk arrays (MSA 1000 and Nexsan Atabeast) I guess I didn't make my point. The tapes are several orders of magnitude slower than disk. Then get faster tapes. If things are that critica

RE: [Bacula-users] Backup to disk then tape

2006-05-01 Thread James Harper
> > So in short; I want backups on disk, then copy them to tape > > Cutting to the chase on this: > > Why? > I can't speak for the original poster, but the value I can see in such a product (depending on implementation) is: . Allows very frequent incremental backups (hourly, depending on the s

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Bill Moran
Alan Brown <[EMAIL PROTECTED]> wrote: > On Mon, 1 May 2006, Bill Moran wrote: > > > How about our reasons for doing this: > > 1) We need speedy restores, thus we have a 1T RAID5 array and backup > > to disk devices there. > > I backup ~20Tb to LTO2. The tapes run almost as fast as most of the

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Alan Brown
On Mon, 1 May 2006, John Gerritse wrote: So in short; I want backups on disk, then copy them to tape Cutting to the chase on this: Why? If it's for speed of restores, I have found that as long as the tape is in the changer then file/directory level restores only take about 5 minutes. if i

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Alan Brown
On Mon, 1 May 2006, Bill Moran wrote: How about our reasons for doing this: 1) We need speedy restores, thus we have a 1T RAID5 array and backup to disk devices there. I backup ~20Tb to LTO2. The tapes run almost as fast as most of the disk arrays (MSA 1000 and Nexsan Atabeast) 2) We _mu

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Bill Moran
On Mon, 1 May 2006 22:32:17 +0100 (BST) Alan Brown <[EMAIL PROTECTED]> wrote: > On Mon, 1 May 2006, John Gerritse wrote: > > > So in short; I want backups on disk, then copy them to tape > > Cutting to the chase on this: > > Why? How about our reasons for doing this: 1) We need speedy restores

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread John Boris
John, We do that here (Backup to disk and then to tape). We have just started using Bacula but we us it to backup to tape. I use Microlite's BackupEDGE to backup my remote Servers to disk on my main backup server. I have a network that is only used by me over night so differentials at night are a p

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Kern Sibbald
On Monday 01 May 2006 10:11, John Gerritse wrote: > Great! Thanks for the quick reply. > > I'm looking forward to the new release that will include "migration". > Is there a workaround, so we can use Bacula anyway until the new feature > is implemented? I don't think so, but it depends on what y

Re: [Bacula-users] Backup to disk then tape

2006-05-01 Thread Kern Sibbald
On Monday 01 May 2006 09:11, John Gerritse wrote: > Hi all, > > I work in a ICT company and we are looking to replace Amanda. I figured > Bacula would be te best solution, but we hit a snag. > > A feature my boss feels is paramount to a back-up package is write the > data to disk, then to tape. Bac