Veritas-bu

[Veritas-bu] Backup to Disk?

2004-05-27 14:38:26
Subject: [Veritas-bu] Backup to Disk?
From: claudius95 AT yahoo DOT com (I Claudius)
Date: Thu, 27 May 2004 11:38:26 -0700 (PDT)
Thanks for the feedback.

The compression is a key feature for me because my
cost $/GB will be significantly less than plain SATA
or ATA raid. When the disk is full, an error message
will be sent to NBU and the BU operation will cease,
just as it doesn when a tape is full.

I don't understand your Tivoli comment. With the DD
solution. I can retain my data on disk for 2-6 months
and at anytime offload that data to tape by cloning it
using the NBU media server. I looked at the virtual
tape guys, but what they offer is mostly speed. I
don't know if I mentioned it or not, but the DD
solution is not a FC San solution. It is a NAS file
system, so a different world than Diligent or
Alacritus.

Cameron

--- Jim Horalek <jimh AT federaledge DOT com> wrote:
> Several ways to do this.
> Just disk. SATA or ATA raids are adequate.
> No compression. Except on client.
> What happens when the disk is full? Netbackup just
> errors out.
> The goal is to look like Tivoli(everything stays on
> disk and eventually goes
> to tape)
> 
> Propriety software. Monitors disk space
>       Some do tape emulation (acts as a standalone tape
> drive)
>       Some do tape and library emulation (usually will
> cost more because
> Veritas charges for each tape in library)
>       Some compress some not..
>       How does an emulated LTO-2 fit on an real
> SDLT200 drive when migrating
> to tape.(not the same size)
>       Some write to tape first and read it back to disk.
> www.diligent.com
> www.alacritus.com
> 
> Proprietary hardware. Combination of above. Iscsi,
> fibre options. 
>       Overland, ADIC 
>       Most disk/Raid vendor have some software to addon
> to do this now
> (another way to sell disk)
> 
> NBU 5.0 has a "disk staging storage unit" to migrate
> the data to tape later.
> 
> Jim
> 
> 
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On
> Behalf Of I Claudius
> Sent: Thursday, May 27, 2004 10:46 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] Backup to Disk?
> 
> 
> Hello,
> 
> My company is evaluating doing backup to disk. We
> are
> using NBU as our backup application. Has anyone here
> implemented Backup to
> Disk? We are looking at Data Domain's product,
> www.datadomain.com. I talked
> with them at Vision and they seem to have some good
> customer references,
> Documentum, WebEx, Borland, to name a few. Have any
> of you talked to them or
> tested their product? Benefits we see are:
> 
> 1) Use our existing backup sw, NBU.
> 2) 20x or greater compression
> 3) Backup throughput of 50mb/s
> 4) Data verification, meaning we won't get corrupt
> data like we do today when we try to restore from
> tape
> (we all know that his happens sometimes)
> 5) Ability to have quick restores since I can have a
> 2-6 month retention of data on their platform.
> 
> I would love to hear some feedback and thoughts.
> 
> thanks
> Cameron
> 
> 
>       
>               
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