Re: [Bacula-users] A few of questions
> On Thu, 14 Apr 2011 14:56:56 -0400, Mike Hobbs said: > > When backing up to a disk/RAID system, how do you guys mirror your > raid array? If you were to mirror in real-time and something got > corrupted it could cause problems on your mirror. Do you mirror once a > day? What software do you use to mirror your array? is rsync good enough? What do you mean by corrupted and cause problems? A disk error or something in software? RAID arrays are designed to cope gracefully with disk errors. File systems using checksums with built-in RAID capabilities such as zfs can make that process more robust. If you are worried about software bugs (in the filesystem implementation or Bacula), then I think you need to make separate backups and test them regularly, because any kind of automatic synchronization of the mirror will just silently propagate the corruption to all copies. __Martin -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] A few of questions
On 4/14/2011 2:56 PM, Mike Hobbs wrote: > ... > > If using vchanger and a jbod setup, if a disk was to fail, how does this > failure impact bacula? How would you figure out what was on that drive > so you can re-run backups and how would you cleanup the bacula database? That's not much different than when a tape fails when backing up to tape. If an i/o error occurs, Bacula will fail the job and mark the volume in error. You can query from within bconsole what jobs were on a volume. The difference from tape is that the tape is only one volume, whereas a failed hard drive could contain several volumes. So you would have to re-run jobs that used any of the volumes on that failed drive. With vchanger, a unique "magazine number" is assigned to every drive, and that magazine number is part of the volume file name, (and barcode label), so it is easy to see which volumes are on which drive. This is a good example of why one should always have at least two backups at all times, whether using tape or disk. -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] A few of questions
On 04/14/2011 03:10 PM, John Drescher wrote: > Yes you can restore to any machine. And any location on that machine. > When doing a restore in bconsole after you select the job. Type mod > then change the client and location. I am not sure what you do in bat > since I rarely use that. > > Works great! Thank you! -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] A few of questions
> When testing bacula I notice restores always expect the client machine > to be up so you can restore directly to it. What would you do if the > client machine was dead or just not alive on the network? Is there a > way to specify a restore point other than the machine itself that the > data was originally on? > Yes you can restore to any machine. And any location on that machine. When doing a restore in bconsole after you select the job. Type mod then change the client and location. I am not sure what you do in bat since I rarely use that. John -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
[Bacula-users] A few of questions
When backing up to a disk/RAID system, how do you guys mirror your raid array? If you were to mirror in real-time and something got corrupted it could cause problems on your mirror. Do you mirror once a day? What software do you use to mirror your array? is rsync good enough? When testing bacula I notice restores always expect the client machine to be up so you can restore directly to it. What would you do if the client machine was dead or just not alive on the network? Is there a way to specify a restore point other than the machine itself that the data was originally on? If using vchanger and a jbod setup, if a disk was to fail, how does this failure impact bacula? How would you figure out what was on that drive so you can re-run backups and how would you cleanup the bacula database? thank you all for any information you can provide, mike -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
