Re: Upgrading disks in Shadowset



healyzh@xxxxxxxxxxx wrote:
Paul Sture <paul.sture.nospam@xxxxxxxxxx> wrote:
I'm going many years to slow hardware with this, but it's worth mentioning if you have slow tapes.

As I have very slow tapes this is of interest. I think I can manage about
1.5-3MB/Sec depending on how I get the drive hooked up, and which drive I
use.

If you are doing disk to disk then back again (e.g. for a reinitialization of the original disk with new parameters), you can save time by doing:

backup/image disk 1 to saveset on disk 2 as the first step.

This means that you are doing sequential writes on the backup and then sequential reads on the restore.

Am I correct that the third and final step is to do a BACKUP/IMAGE of the
saveset to disk 3? This is definitely doable in my configuration, I'd just
need to pull my Scratch drive, which is no problem at all.


Yes. I was thinking of doing the last step back to disk 1, so I'll clarify what I had in mind:

1. backup/image disk 1 to saveset on disk 2
2. dismount disk 1, init with desired parameters and remount as
/foreign
3. backup/image/noinit saveset on disk 2 to disk 1
.



Relevant Pages

  • Re: copying vms image backup files from tape to disk ?
    ... > I'm trying to move some image backup saveset files from a tape straight ... YOU CANNOT COPY IT TO DISK. ... kenneth dot h dot fairfield ...
    (comp.os.vms)
  • Re: Norton Ghost 2003
    ... > verify operation on the saveset - Everything works OK. ... if you burn images to CD/DVD disks put each ... That's why I always clone to a disk rather than an image to a CD. ...
    (microsoft.public.windowsxp.general)
  • Re: Standalone backup on Alpha?
    ... I do disk to disk backups using ... I am pretty sure that the V8.3 CDrom can't read ... those backup savesets (that format did not exist when 8.3 was released ... onto a saveset on third ...
    (comp.os.vms)
  • Re: Backup question
    ... If the tape contains a saveset containing a saveset, ... > the saveset must be restored to disk before files can be recovered ... BACKUP was used to copy an already ...
    (comp.os.vms)
  • Re: Zip question
    ... sequential disk savesets You can use a disk drive much as you would a tape drive. ... Backup writes to the disk until it gets full, and then asks you to dismount the disk, remove the disk pack, install another disk pack in the drive and then it will mount the 2nd disk and continue. ... When all done, zip the LD container files, each into ... Since I already copy all the data files to another system as a hot backup, next I am going to try copying the data files one at a time to a work directory until it would exceed the limit, backup those up to a saveset, rename them into the hot backup directory and loop till done. ...
    (comp.os.vms)