Virtual librarys, software or hardware ?

[Herr Ing. RUEHRNESSEL · Accepted solution]

Hi Leif,

as I mentioned in anothere thread ( -> http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=971152 )
Dataprotectors Software Solution "Advanced Backup to Disk" is benefitial for LAN Hosts only (!) and Virtual Tape Library Hardware Appliances are great solutions for SAN Hosts.
These are the key factors that I've learned for myself during the presentation of HP's new Virtual Tape Library Systems at ENSA 2005.

I thought it's worth adding this additional info to your original thread.

Regards
Manfred

[Leif Halvarsson_2]

Hi,

As Software Virtual librarys is emulated on a client, the data flow must go via LAN. It is very obvious but, easy to forgot before you have configured a such device yourself.

Thank you.

[KurtG]

I would like to add another argument.

Traditional backup to disk is vulnerable for virus attacts. The "VLS" like systems are much more likly to be affected by this threat.

And offcours "Advanced Backup To Disk" as deliverede from HP and other are mainly a disk resource owned by a singel host.

KurtG

[Kurt Beyers.]

Leif,

There is a white paper called 'The role of HP StorageWorks 6000 Virtual Library Systems in a modern data protection strategy white paper' at http://h71028.www7.hp.com/ERC/downloads/4AA0-0846ENW.pdf

A comparison with disk and tape based backups is made too.

regards,
Kurt