James Gibson wrote:
>
> Matti Harvala wrote:
> >
> > Does anyone have any experiences of AXXiON-NetBackup from Open Vision.
> >
> > Is there any comparison made between ADSM and AXXiON-NetBackup ??
> >
> > What are the main differencies... etc...
> >
> > Best Regards,
> > Matti Harvala
> > Unix System Manager
> >
> > ===========================================================
> > Matti Harvala * Phone: +358 (0)10 505 2254
> > Nokia Mobile Phones * Fax: +358 (0)10 505 2899
> > P.O. Box 86 * Mobile: +358 (9)40 556 5931
> > 24101 SALO FINLAND * E-mail: matti.harvala AT nmp.nokia DOT com
> > ===========================================================Hello,
>
> I am using both ADSM and NetBackup. We are switching to NetBackup for the
> following
> reasons:
>
> 1) ADSM can not multiplex to tape devices. ADSM can simultaneously write
> backup
> operations to disk, but tape transfers are single threaded. Therefore, it is
> highly
> unlikely ADSM can keep fast tape devices "3590, DLT-7000, STK
> Timberline/Redwood"
> busy with a single I/O stream. NetBackup supports writing multiple I/O
> streams to a
> single tape device concurrently. This allows for a few, very fast tapes
> devices to
> be used, instead of many slow devices - less robotics needed.
>
> 2) ADSM does not support distributed tape devices. ADSM is built upon the
> central
> server methodology - all backup traffic is sent to one host. Central server
> technology is great if you have sufficient bandwidth to your central server
> or have
> a small amount of data to backup, but in our case, we do not. Additionally,
> we have
> several servers with large Oracle data bases (150+ GB). It does not make
> sense to
> send this amount of data across the network. NetBackup allows tape devices to
> located throughout the enterprise. This allows I/O traffic to be distributed
> where
> needed. For example, on our large data base servers, we attached dedicated
> tape
> drives to isolate I/O to the one server and to improve performance. Even
> though I/O
> is distributed, management of the backup process is still centralized. This
> reliance
> on sending data to a central machine greatly limits ADSM's performance in
> shops with
> large data storage.
>
> 3) NetBackup supports a variety of hardware and robotic devices - ADSM has
> made
> improvements in this area, but is still behind.
>
> 4) NetBackup has a good interface to Oracle using Oracle's Enterprise
> Backup
> Utility. I am not sure where IBM stands on interfacing with OEBU - Oracle's
> recommended backup strategy.
>
> ADSM is a good backup product that is maturing quickly. In my opinion, it is
> better
> suited for workstation type environments. ADSM is not suited for environments
> with large (data) servers. NetBackup has a very good product with some
> limitations.
> I have been impressed with their willingness to listen to my needs and to
> modify the product to meet our specific needs.
>
> To pick the right product you must deermine your specific needs, assign an
> importance
> value to each requirement, and compare the leading products using the
> requirements
> list. I am willing to discuss this subject further or to provide my own
> experiences
> with you on both products (E-Mail or Phone).
>
> James Gibson
> Yellow Technology Services
> 913-344-3457
James,
What platforms does this product support? and where can the server be
installed?
Regards..
Fawzi Al-Matar
Saudi Arabia
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