Thanks!
-aW
0n Mon, Mar 09, 2009 at 10:40:47PM -0400, cpreston wrote:
>Wilkinson, Alex wrote:
>>
>> What is an "OST interface" ?
>>
>
>
>The OpenSTorage interface, a new way to use your Data Domain boxes (and
other boxes that support it) with NetBackup. It's not NFS or CIFS, it is its
own transport. It is also not VTL. Think of it as a more intelligent DSU.
>
>In the case of DD & Quantum, the data is sent over IP. With Falconstor,
the data is sent over Fibre Channel.
>
>With DD boxes (which is what started this conversation), the first
improvement you'll get simply by switching from NFS/CIFS to OST is a
significant increase in performance. With all systems that support OST, you
also get what NBU calls "optimized deduplication," where NBU tells one OST
device to copy a given backup to another OST device. The OST device (in this
case, the DD box) will use dedupe and replication to get the data there. Once
there, it informs NBU. Now NBU knows about both copies, just as if it had
duplicated it via bpduplicate. Nice, huh?
>
>The nice thing that OST is supposed to support is tape-out functionality,
where an OST device can copy it's backup to tapes and tell NBU which tapes got
which backups. Again, just as if it NBU did the copy.
>
>Here's my blog post about OST:
>http://www.backupcentral.com/content/view/198/47/
>
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