ADSM-L

Re: Library out of space. Time for disks?

2006-10-18 16:09:27
Subject: Re: Library out of space. Time for disks?
From: Kelly Lipp <lipp AT STORSERVER DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 18 Oct 2006 14:08:13 -0600
Not if you use file device class and pre-allocate all of the sequential
volumes for the pool. 


Kelly J. Lipp
VP Manufacturing & CTO
STORServer, Inc.
485-B Elkton Drive
Colorado Springs, CO 80907
719-266-8777
lipp AT storserver DOT com

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Thorneycroft, Doug
Sent: Wednesday, October 18, 2006 1:47 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Library out of space. Time for disks?

main disadvantage is Fragmentation

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Orin Rehorst
Sent: Wednesday, October 18, 2006 11:59 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Library out of space. Time for disks?


I could use an external drive rack, build a RAID array, and use it to
replace my primary tapepool, correct? What would be the disadvantages of
that vs. a VTL? 

TIA
Orin Rehorst

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Thorneycroft, Doug
Sent: Monday, October 16, 2006 10:18 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Library out of space. Time for disks?

That's what we are doing. Our primary is a 6.4 TB VTL.
So far, it's working very well. Excellent performance.

Main concern is if the device fails, how long will it take to restore
all those terabytes of primary storage from offsite volumes.


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Orin Rehorst
Sent: Monday, October 16, 2006 8:02 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Library out of space. Time for disks?


Our IBM 3583 tape lib is out of space. 

What do you think of this idea?

Acquire disk-based appliance i.e. 3 TB. Use it for primary. Use 3583 for
off site tapes only.

Please advise.

TIA

Orin Rehorst