On odd numbered Sunday's, use Backup #1, and follow that week with differentials to that same file.
On even numbered Sunday's, use Backup #2, etc. This will allow you to recover necessary files from disk for up to 14 days. *ASB *(My XeeSM Profile) <http://XeeSM.com/AndrewBaker> *Exploiting Technology for Business Advantage...* * * Signature powered by WiseStamp <http://www.wisestamp.com/email-install> On Fri, Aug 6, 2010 at 2:02 PM, Cameron Cooper <ccoo...@aurico.com> wrote: > For the Full Backup to Disk… by alternating backup jobs… what do you mean > there? > > > > _____________________________ > > *Cameron Cooper* > > *Network Administrator | CompTIA A+ Certified*** > > Aurico Reports, Inc > > Phone: 847-890-4021 | Fax: 847-255-1896 > > ccoo...@aurico.com | www.aurico.com > > > > *From:* Andrew S. Baker [mailto:asbz...@gmail.com] > *Sent:* Friday, August 06, 2010 12:44 PM > *To:* NT System Admin Issues > *Subject:* Re: Backups > > > > So you're not keeping the backup to disk at all? > > > > BTW, I can't see how the retention of the tapes can be classified as "at > least one full day". It would have to be a week or something. > Otherwise, how would you restore on Friday, what was lost on Wednesday if it > was only created on Tuesday morning? > > > > > > I would be inclined to go with the following backup scheme: > > - *Full Backup to Disk* -- Each Sunday > > > - Alternate backup jobs by week (total of 2 jobs) -- Retention of 2 > Weeks > > > - *Differential Backup to Disk* -- Monday to Saturday > > > - Retention of 2 Weeks (tied to the corresponding Full) > > > - *Weekly to Tape* -- Every Saturday > > > - Backup Recently Completed Full + Diff and take off site -- Retention > of 6 Weeks > > > - *Monthly to Tape* -- Every Saturday of Each Month > > > - Backup Recently Completed Full + Diff and take off site -- Retention > of 12-24 Months > > > > Now, you'll be able to restore files of up to 2 weeks from disk, and up to > 6 weeks from tape. Beyond 6 weeks, you'll have to restore the closest > month end version, assuming one exists. > > > > I've used some variation of this scheme for the past 4 or 5 years. > Environments that are more critical can copy to tape and take off-site > daily... (or find another way to replicate the backups to a separate > location) > > > > > > *ASB *(My XeeSM Profile) <http://XeeSM.com/AndrewBaker> > *Exploiting Technology for Business Advantage...* > * * > > Signature powered by WiseStamp <http://www.wisestamp.com/email-install> > > > > On Fri, Aug 6, 2010 at 1:15 PM, Cameron Cooper <ccoo...@aurico.com> wrote: > > The retention period on the tapes is at least one full day. For the full > tape backups it’s a week. The incremental backups are one full day as well. > > > > We currently have 5 tapes that we rotate out. One for the weekly full > backup and the other four for the daily incremental backup. > > > > Part of the reason that it took 4 days was due to restoring the tapes and > being limited by the hardware. The tape drive is an external Dell LTO box > that only takes one tape at a time. Once restoring the tape to disk, we had > to wait for the cataloging of the media to finish. Once that was done, then > we could go into the disk media to look if the files were there. The server > that performs the backup, is a Dell PowerEdge 2950 with dual Xeon CPU @ > 1.60GHz (each) with 5GB of RAM installed. Also the server’s only role is to > backup. > > > > _____________________________ > > *Cameron Cooper* > > *Network Administrator | CompTIA A+ Certified* > > Aurico Reports, Inc > > Phone: 847-890-4021 | Fax: 847-255-1896 > > ccoo...@aurico.com | www.aurico.com > > > > *From:* Andrew S. Baker [mailto:asbz...@gmail.com] > *Sent:* Friday, August 06, 2010 11:56 AM > > > *To:* NT System Admin Issues > *Subject:* Re: Backups > > > > What's your retention period on the tapes? (I'm assuming that the disk > backup gets overwritten each week?) > > > > Why did it take 4 days to restore the file? > > > > Perhaps understanding that will help us provide suggestions. > > > *ASB *(My XeeSM Profile) <http://XeeSM.com/AndrewBaker> > *Exploiting Technology for Business Advantage...* > * * > > Signature powered by WiseStamp <http://www.wisestamp.com/email-install> > > > > On Fri, Aug 6, 2010 at 12:29 PM, Cameron Cooper <ccoo...@aurico.com> > wrote: > > Due to a recent issue with some files within our system being deleted and > then taking 4 days to restore those files, we are looking for > suggestions/advice on what an efficient backup process should look like. > Here’s what we currently have setup: > > > > - Every Sunday of the week we do a full backup to disk and Tape > > - Every Monday – Friday we do an incremental backup onto Tape > > - Every Monday – Saturday we do an incremental backup to disk > > > > _____________________________ > > *Cameron Cooper* > > *Network Administrator | CompTIA A+ Certified* > > Aurico Reports, Inc > > Phone: 847-890-4021 | Fax: 847-255-1896 > > ccoo...@aurico.com | www.aurico.com > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
