Thanks for info. Regards to all.
-----Original Message-----
From: Alex Paschal [mailto:AlexPaschal AT FREIGHTLINER DOT COM]
Sent: Wednesday, June 25, 2003 10:08 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Device Class
Possible reasons can include:
1. Using a different (maybe offsite?) library for your offsite volumes
2. EstCapacity - if you're using generictape, the capacity of the volume
grows as it puts more data on it. If you send a volume offsite, it could
only have 3GB and it wouldn't come back until it hits your reclamation %.
You'd be wasting 37GB of that volume. If that matters to you. So, if you
have a reason for a low estcapacity onsite and a high estcapacity offsite,
then that could do it.
3. If you want to "shape" mountlimit for onsite vs. offsite volumes in your
library.
4. Sometimes you may want a longer mount retention for your onsite volumes
and a lower mount retention for offsite volumes because copypool volumes
only get mounted during reclamation and backup stg whereas primary onsite
stgpool volumes are used much more often.
But personally, I use the same devclass for both onsite primary and offsite
copy stgpools.
Alex Paschal
Freightliner, LLC
(503) 745-6850 phone/vmail
-----Original Message-----
From: Prather, Wanda [mailto:Wanda.Prather AT JHUAPL DOT EDU]
Sent: Wednesday, June 25, 2003 10:39 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Device Class
I've never seen any reason to have different device classes for primary &
copy pools, assuming they are physically the same device type.
-----Original Message-----
From: Zosimo Noriega [mailto:znoriega AT ADNOC DOT COM]
Sent: Wednesday, June 25, 2003 4:42 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Device Class
Hi to All,
What is the importance of using a different Device Class for onsite &
offsite storage pools? Here in our site, we used single device class for
primary & copy pools. Any feedback is really appreciated. Thanks.
Zosi Noriega
Analyst, Data Storage
P.O. Box 898
ADNOC AUH UAE
009712 6024987
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