Hello Tim,

A random storage should be considered as temporary storage. This type of pool 
that can accept an almost unlimited number of client, it facilitates backups 
sequense
Typically, it must be large enough to accommodate the daily backup.
During the maintenance plan, it must be emptied on a sequential storage pool 
(tape or VTL).
To answer your question, name meaning, the two types of storage pool have 
different uses.

The use of a random pool without emptying induced term loss of performance: 
storage ultimately becoming a great Gruyere cheese.

Regards,
Cordialement,
Grégory Molin
Tel : 0141628162
gregory.molin AT afnor DOT org

-----Message d'origine-----
De : ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] De la part de 
Tim Brown
Envoyé : lundi 26 septembre 2011 22:05
À : ADSM-L AT VM.MARIST DOT EDU
Objet : [ADSM-L] vtl versus file systems for pirmary pool

What advantage does VTL emulation on a disk primary storage pool have

as compared to disk storage pool that is non vtl ?



It appears to me that a non vtl system would not require the daily reclamation 
process

and also allow for more client backups to occur simultaneously.



Thanks,



Tim Brown
Systems Specialist - Project Leader
Central Hudson Gas & Electric
284 South Ave
Poughkeepsie, NY 12601
Email: tbrown AT cenhud DOT com <<mailto:tbrown AT cenhud DOT com>>
Phone: 845-486-5643
Fax: 845-486-5921
Cell: 845-235-4255




This message contains confidential information and is only for the intended 
recipient. If the reader of this message is not the intended recipient, or an 
employee or agent responsible for delivering this message to the intended 
recipient, please notify the sender immediately by replying to this note and 
deleting all copies and attachments.

"ATTENTION.

Ce message et les pièces jointes sont confidentiels et établis à l'attention 
exclusive de leur destinataire (aux adresses spécifiques auxquelles il a été 
adressé). Si vous n'êtes pas le destinataire de ce message, vous devez 
immédiatement en avertir l'expéditeur et supprimer ce message et les pièces 
jointes de votre système. 

This message and any attachments are confidential and intended to be received 
only by the addressee. If you are not the intended recipient, please notify 
immediately the sender by reply and delete the message and any attachments from 
your system. "