Re: One last question, backups
From: Matthew Miller (mattmiller1505_at_hotmail.com)
Date: 04/29/04
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Date: Thu, 29 Apr 2004 12:12:40 -0500
Sounds to me that this is being asked so that whomever needs to restore a
file, will not have to figure out what tape is needed, instead, all files
would be available on the tape that ran the previous night. I am sure that
EMC or CA would be happen to sell you some solution that is outrageously
priced. however, to keep things relatively inexpensive, you are stuck with
the backup methods built into most systems; that is
incremental/differential/full. The users will simply need to be trained on
how to identify, from the backup software what tape is needed.
Another, potential solution would be Shadow Copy [if 2003 Server is being
used]. I have not had a chance to fully test and understand how shadow copy
works, but it may be worth looking into.
Matt
"Preston Crawford" <me@REMOVESPAMBLOCKprestoncrawford.com> wrote in message
news:pan.2004.04.29.13.31.43.981586@REMOVESPAMBLOCKprestoncrawford.com...
> On Thu, 29 Apr 2004 22:54:26 +1200, Enkidu wrote:
>
> > No, you are wrong. Say the file is in the full backup set taken on
> > Friday. On Monday it has not been changed so it is not backed up. On
> > Tuesday it is deleted. On Wednesday they want it back and it is in the
> > Friday's full backup.
> >
> > If another file does not exist on Friday it is (obviously) not in the
> > Friday backup, but if it is created on Monday it is in the Monday
> > incremental backup. If it is deleted on Tuesday, and required on
> > Wednesday, it can be recovered from the Monday incremental.
>
> I know it will be in the full backup. I probably didn't phrase the
> question right (because it's kind of an odd request). They want the backup
> to be performed in such a way that if the file gets deleted Monday, let's
> say, the incremental backup won't pick that up. It will only pick up files
> that have been modified. The deletion then, won't effectively be picked up
> until the next full backup. All the while Monday, Tuesday, Wednesday,
> Thursday, Friday, etc. will carry the file over (not even sure how that
> would happen, maybe if you were using the same backup tape and the tape
> was versioning the files or something) that was deleted Monday and not
> kill it until you do the next full backup. Hopefully that makes sense.
> It's a confusing thing they're asking for and I don't think it's doable.
>
> Preston
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