Ello,

Ok im shooting from the hip here (just had a chat with a colleague to
confirm):

As far as I (the proverbial we) know DiskX2000 "doesnt" (at this stage)
support the three tier approach. DXUL does.

Having spoken to our channel supplier a while ago we beleive it is on the
books for a future (i.e. not at the moment) release of DiskX2000. (this
being what quite a few people want to do).

I know you can have numerous move groups and rules within the same system -
but - as soon as you go external DiskX2000 has trouble following the action
to completion (i.e.: rename a file at the front end and it will do it - but
will then attempt to rename it on your secondary or third or fourth media
(down the chain). If any of these processes fail there is no way for the
original rename to know about it and to "fail". Hence you could potentially
get into a corrupt scenario.

What you should be reading in the above is that DXUL (Unix / Linux) does
allow you to do this (if memory servers me right - up to 15 locations). But,
this is a complete different code base from DX2000 and you need a
"certified" DXUL person to install / setup the application.

Now I might be talking complete garbage so I suggest you talk with your
local supplier or your channel support to confirm this.

Regards,

Riaan

-----Original Message-----
From: Rohrich, James [mailto:James.Rohrich AT UOP DOT COM]
Sent: Tuesday, August 05, 2003 2:27 PM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] Legato HSM product


Has anyone here used Legato's HSM product. Want to set a three tiered system
where data that os old is first moved to Blade Store disk from a SAN. If a
user accesses the file again it would be moved back to the SAN from the
Blade Storage. If the data is not accessed on the blade store for a period
of time it will be moved to tape only.

This would be a three tiered HSM solution. Would want the capapbility to
access the data from any of the three levels.

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