Re: [Veritas-bu] EMC Data Domain OST Vs VTL with NetBackup
2011-04-14 14:59:18
I wouldn't recommend a VTL with NBU at
all as NBU works extremely well using Disk Pools/Disk Staging Storage Units.
Making your disk look like a bunch of tape drives just adds more management
and complexity and defeats the purpose of disk, IMO. On a side note, because
SLPs and OST work together to get the replication completed, you will not
need the replication option licensed on the DD.
It is very easy to setup both the DD
and NBU to utilize the DD and get images replicating. Plan on waiting a
while for the first images to replicate if you have a small link. I made
a mistake setting up my first DD Storage Server w/in NBU and used the IP
address as the name of the Storage Server. The Storage Server name is tied
to the Disk Pool, which is tied to the SLP, which is tied to the images,
so it caused a situation where I had to wait for the old images to be cleaned
up before I could remove it.
Something to think about is what you
are going to do with the images on the remote DD once they are on the other
side. Just having the images on a DD at a remote location is only part
of the way to being able to do any recovery.
Rusty Major, MCSE, BCFP, VCS ▪
Sr. Storage Engineer ▪ SunGard Availability Services ▪ 757 N. Eldridge
Suite 200, Houston TX 77079 ▪ 281-584-4693
Keeping People and Information Connected®
▪ http://availability.sungard.com/
P
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Subject
| [Veritas-bu] EMC Data Domain OST
Vs VTL with NetBackup |
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We are in the early stages of implementing EMC Data
Domain dedupe appliance and use Symantec NetBackup. I've a couple of questions
about it for the experts.
Plan is to have a DD appliance in 1 location and replicate data to another
DD appliance in another location. Plan is also to generate a tape copy
for long term archival at primary location.
1.OST & VTL are both being discussed. Which option is most favorable
in the industry? Are there any specific advantages that can make or break
things?
2.VTL supports LTO3 drives at the most. Does this mean that we need to
have LTO3 physical tape drives for duplicate copy or will LTO5 drives work?
Thanks in advance.
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