[Bacula-users] Running out of space on tape
Hi, I am using Bacula 5.0.1 running on an Ubuntu 10.04 64-bit server with a Dell PowerVault TL2000 tape library attached via a SAS controller. In the library are two LTO4 drives and I am using LTO4 media. From a backup over the weekend I found the following message in the bacula log: utility-sd JobId 377: End of medium on Volume 32 Bytes=843,378,278,400 Blocks=13,073,199 at 14-Apr-2012 19:45 I was hoping to get more than 843GB on a tape that can hold 800GB without compression. I guess I can go to two tapes for this backup in the future but I would sure hate to spend money on more tapes. Has anyone run into a similar situation? Jack Cobb -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
[Bacula-users] Running out of space on tape
Hi, I am using Bacula 5.0.1 running on an Ubuntu 10.04 64-bit server with a Dell PowerVault TL2000 tape library attached via a SAS controller. In the library are two LTO4 drives and I am using LTO4 media. From a backup over the weekend I found the following message in the bacula log: utility-sd JobId 377: End of medium on Volume 32 Bytes=843,378,278,400 Blocks=13,073,199 at 14-Apr-2012 19:45 I was hoping to get more than 843GB on a tape that can hold 800GB without compression. I guess I can go to two tapes for this backup in the future but I would sure hate to spend money on more tapes. Has anyone run into a similar situation? Jack Cobb -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] Running out of space on tape
I am using Bacula 5.0.1 running on an Ubuntu 10.04 64-bit server with a Dell PowerVault TL2000 tape library attached via a SAS controller. In the library are two LTO4 drives and I am using LTO4 media. From a backup over the weekend I found the following message in the bacula log: utility-sd JobId 377: End of medium on Volume 32 Bytes=843,378,278,400 Blocks=13,073,199 at 14-Apr-2012 19:45 I was hoping to get more than 843GB on a tape that can hold 800GB without compression. I guess I can go to two tapes for this backup in the future but I would sure hate to spend money on more tapes. Has anyone run into a similar situation? Is your data already compressed (most pictures, video or audio files, zip files ...) ? Remember you do generally do not gain much by compressing data 2 (or more times). If that is not the case check for HW errors in your dmesg. Bacula will assume the tape is at the end when it hits a write error. John -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] Running out of space on tape
Il 16/04/2012 15:59, Jack Cobb ha scritto: Hi, I am using Bacula 5.0.1 running on an Ubuntu 10.04 64-bit server with a Dell PowerVault TL2000 tape library attached via a SAS controller. In the library are two LTO4 drives and I am using LTO4 media. From a backup over the weekend I found the following message in the bacula log: utility-sd JobId 377: End of medium on Volume 32 Bytes=843,378,278,400 Blocks=13,073,199 at 14-Apr-2012 19:45 I was hoping to get more than 843GB on a tape that can hold 800GB without compression. I guess I can go to two tapes for this backup in the future but I would sure hate to spend money on more tapes. Has anyone run into a similar situation? Jack Cobb -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users If the data sent to tape is already compressed there's little that can be done by the tape drive to compress it further. For example, if all you store on the drive are text files, there are good chances you'll be able to store more than two times the uncompressed tape capacity. On the other side, if you store only jpeg images, it will fill up after no more than is native capacity, because the jpeg algorithm already eliminates redundand data from images in a very domain-specific way (thus any other algorithm can't do much better than that). So the actual size of data that can be stored on a tape depends on the level of redundancy of the data itself. In other words, one can only make assumptions about the native (i.e. uncompressed) tape capacity. HTH -- Marcello Romani -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] Running out of space on tape
Thanks for the quick reply. No errors that I can find in dmesg. However, there are a lot of jpeg files on this server...that does make sense that compressed files cannot be compressed a second time. Also if you are using encryption in bacula. I am not sure if that bacula uses compressible encryption. John -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
