Re: Backup solution for Redhat 8.0 Server: Exabyte VXA-2 vs. DLT vs160 vs. DLT8000

From: Bob Mariotti (R.Mariotti_at_FinancialDataCorp.com)
Date: 07/17/03 

Date: Thu, 17 Jul 2003 02:33:09 GMT

On 16 Jul 2003 15:01:23 -0700, stsaft@yahoo.com (Sotiris Tsaftaris)
wrote:

>Hello all I am looking into purchasing a tape backup drive for our
>server.
>
>The server is a Intel Xeon server running Redhat linux 8.0
>We have a 200GB HD which is mirrored on another 200GB.
>
>To be safe we want to buy a backup solution for our setup.
>
>Our requirements are:
>
>Atleast 80 GB capacity
>Linux compatibility
>Reliability
>Price
>
>After a bit of searching it boiled down to:
>
>1] Exabyte VXA-2. VXA-2 Technology, 80GB/160GB
>(compressed/uncompressed), tranfer rate 6MB/s, price ~$1000, media
>price ~$100.
>
>2] Quantum DLT vs160. DLT (?) Technology, 80GB/160GB
>(compressed/uncompressed), tranfer rate 8MB/s, price ~$1800, media
>price ~$70.
>
>3] Quantum DLT 8000. DLT Technology, 40GB/80GB
>(compressed/uncompressed), tranfer rate 6MB/s, price ~$2000, media
>price ~$70.
>
>
>I am only inlcuding the 3rd because it was in a similar price range
>although very high for the offerred capacity.
>
>I am very confused how similar capacities can have such a big price
>differences?
>
>I know that VXA-2 uses a helical tape path compared to the linear mode
>that the others use. I got the impression that this is a known debate
>in the storage area.
>
>It also seems to me that the vs160 does not use standard DLT tapes. Is
>that true?
>
>DLT media has been around for a while and at least from what i have
>heard, they are quite reliable. Is that true also for VXA-2 and vs160?
>
>Last, I am using dump to do the backup with our old (DDS drive) will I
>still be able to use that with any of the above?
>
>To summarize, go with the new and really cheap! VXA-2, go with quantum
>DLT vs160 for double the price, or rely on DLT 8000.
>
>Thank you all in advance for your time and attention.
>
>
>SotoS

We run and support dozens of AIX servers all running Exabyte 8mm tape
drives. Yes, some have failed and needed repair/replacement. But
NEVER has a tape backup gone bad or been unreliable. And that's daily
since 1991.

For our Linux servers we installed VXA-1 drives with a SCSI card and
we've been using BRU-Pro for our multi-server backups. Works just
great and restoration of a file(s) is a breeze.

Now we're playing with their free CRU (crash recovery utility) which
uses the same drives and allows a full system restore.

Good luck.

Bob

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