Category: Backup

Any items pertainting to backup and recovery of data.

RPO vs. RTO

I had an engineer friend of mine (real engineer, not affiliated with computers) once told me.  “There are three options:      1. You can have it faster.      2. You can have it smaller.      3. You can have it cheaper. ….Now pick any two.” Over and over in my life I’ve put that theory to …

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Is Microsoft VSS a real Snap? Maybe. Does it suck? Absolutly!

I can’t even talk during the day because of the great sucking sound coming from our microsoft infrastructure. From a storage end, it’s even harder, because natively Microsoft doesn’t have ANY tools to unmount a filesystem or quiesce a production volume so you can take a hardware based snapshot of it. Of course they’ve introduced …

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Veritas NetBackup 6.0 – Synthetic Backups?

Just an interesting note. When I took the NBU 6.0 management course earlier this year, we breifly touched on “Synthetic Backups”. Synthetic backups are a great idea – you can build a full backup by taking the last full backup and rolling the incrementals into it.  This results in a backup that takes 1/10th the …

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The Different Flavors of EMC TimeFinder

I don’t know what most people know about TimeFinder, so I’ll start with a short introduction. EMC Timefinder was developed to provide customers with a dynamic mirror they could use to try and cut some of the tediousness out of copying data, whether from one host to another or within the same host. When I …

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Are backup tapes headed for the graveyard?

I read an article today in Byte&Switch ( Link ) called “Can’t quite kick the tape habit” ( Read-it-here ).  This article seems to imply that actual tape backups may be going by the wayside in favor of Disk storage unites and VTL (Virtual-Tape-Library) systems. I think the author is on crack, and that while the disk …

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Exchange backups a problem?

74 Gigs should *NOT* take 24 hours to back up.  Keep in mind, we are not going to tape, we are backing up to Disk Storage Units and then copying backup images from disk to tape later.  So tape bandwidth is not the issue here. I’ve been working on an exchange backup problem.  Now I …

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Raid as backup? Only if you have your resume spell checked.

So my cousin runs a small ISP in the Phoenix, Arizona area.  Nothing special, a few hundred DSL and Dial-Up users, webmail, etc.  A couple of weeks ago, I was down visiting and he was wringing his hands over a technical “glitch.”   Apparently a drive in his raid set had failed and due to either …

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