jas@ISI.EDU (Jeff Sullivan) (03/09/91)
I have a pair of questions about Retrospect: 1. What is the current version (I have 1.2)? 2. If I create an Archive, and I want to add files or folders to the archive, how exactly do I do it? Do I just select the archive on my tape drive, then select the files I want to add and execute it? I'm afraid I'll overwrite the existing files in the archive if I do this (I currently have only one tape, so I'm not free to experiment). Thanks, jas -- -------------------------------------------------------------------------- Jeffrey A. Sullivan | Senior Systems Programmer jas@venera.isi.edu | Information Sciences Institute jas@isi.edu | University of Southern California
steve@violet.berkeley.edu (Steve Goldfield) (03/09/91)
In article <17064@venera.isi.edu> jas@ISI.EDU (Jeff Sullivan) writes:
#>
#>I have a pair of questions about Retrospect:
#>
#>1. What is the current version (I have 1.2)?
#>
#>2. If I create an Archive, and I want to add files or folders to the
#>archive, how exactly do I do it? Do I just select the archive on my
#>tape drive, then select the files I want to add and execute it? I'm
#>afraid I'll overwrite the existing files in the archive if I do this
#>(I currently have only one tape, so I'm not free to experiment).
#>
#>Thanks,
#>
#>jas
Retrospekt does NOT create incremental archives. Each
time you run it, it creates an entirely new backup
until you run out of space on your backup device. Since
I am backing up to a removable, I found this behavior
unacceptable and have resumed using SUM backup. I was
told that Retrospekt could be configured to erase the
oldest backup archive when the disk is full, but it
didn't appear to be easy to do.
Steve Goldfieldgreg@enterprise.Sun.COM (Greg George - Sun Area Project Consultant - Midwest ) (03/09/91)
In article <1991Mar8.212315.20572@agate.berkeley.edu>, steve@violet.berkeley.edu (Steve Goldfield) writes: |> Retrospekt does NOT create incremental archives. Each |> time you run it, it creates an entirely new backup |> until you run out of space on your backup device. Since |> I am backing up to a removable, I found this behavior |> unacceptable and have resumed using SUM backup. I was |> told that Retrospekt could be configured to erase the |> oldest backup archive when the disk is full, but it |> didn't appear to be easy to do. |> |> Steve Goldfield HUH? I'm confused. The whole basis behind Retrospect is adding to a backup rather than creating a brand new one everytime you want to save your work. Now SuperMac does produce a disk backup product (name escapes me for the moment) that creates a brand new backup everytime you use it. That became very irritating - as the gentleman above explained. To get Retrospect to do what you want you are going to need to create a script to backup what you want, and to the device it needs to go to. Considering the multitude of possibilities for backup and archive (which I havn't seen anywhere else), I have found Retrospect to be the best backup program you can buy. greg p.s. Archiving allows Retrospect to delete the files it backed up from your hard drive (why waste disk space with something you won't use for 6 months?)
mo@well.sf.ca.us (Maurice Weitman) (03/11/91)
steve@violet.berkeley.edu (Steve Goldfield) writes: >In article <17064@venera.isi.edu> jas@ISI.EDU (Jeff Sullivan) writes: >#> >#>I have a pair of questions about Retrospect: >#> >#>1. What is the current version (I have 1.2)? >#> I believe 1.2 is the latest. >#>2. If I create an Archive, and I want to add files or folders to the >#>archive, how exactly do I do it? Do I just select the archive on my >#>tape drive, then select the files I want to add and execute it? I'm >#>afraid I'll overwrite the existing files in the archive if I do this >#>(I currently have only one tape, so I'm not free to experiment). >#> >Retrospekt does NOT create incremental archives. Each >time you run it, it creates an entirely new backup >until you run out of space on your backup device. Since >I am backing up to a removable, I found this behavior >unacceptable and have resumed using SUM backup. I was >told that Retrospekt could be configured to erase the >oldest backup archive when the disk is full, but it >didn't appear to be easy to do. If I understand both of you correctly, I think you're incorrect, Steve. I use Retrospect to do incremental backups. What it cannot do is an incremental backup *in place*, meaning overwrite the archived copy of a file when the live one is updated. Retrospect's method of incremental backup is to append the changed files to the end of the backup data set. As far as Steve's comment about erasing the oldest backup when disk is full, I think what can be done easily is to cause automatic full backup when target data set is full. Let's say you're backing up to a 40mb disk or tape. Source is a 20mb disk. First backup takes ~20mb. First increment takes another 3mb, representing the changed files since last backup, next backup session tacks on another 2mb, etc., until the 40mb is about to be exceeded, at which time, it'll tell you it's time to recycle the medium, and ask permission to do so. As for Jeff's original question, I'm afraid I don't have my manual handy, but I'd suggest calling Dantz t.s. (415)849-0372. They'll help you through setting that up. It's pretty easy. -- Maurice Weitman mo@well.sf.ca.us ..!{hplabs,pacbell,apple,ucbvax}!well!mo | <- this is not a pipe 1634 Walnut Berkeley, CA 94709 (415)549-0280 Quote: "Facts are stupid things." Ronald Wilson Reagan, New Orleans, 1988 Disclaimer: Any errors in spelling, tact or fact are transmission errors.