Re: BACKUP DB Question
2006-02-23 12:12:15
I understand....but the "money man" doesn't...
:0)
We are using 9840C drives
Dave Zarnoch
Nationwide Provident
zarnocd AT nationwideprovident DOT com
W 302-452-4197
C 302-462-8703
Richard Sims
<rbs AT BU DOT EDU> To: ADSM-L AT
VM.MARIST DOT EDU
Sent by: "ADSM: cc:
Dist Stor Subject: Re: [ADSM-L] BACKUP DB
Question
Manager"
<[email protected]
.EDU>
02/23/2006 11:47
AM
Please respond to
"ADSM: Dist Stor
Manager"
On Feb 23, 2006, at 10:48 AM, Dave Zarnoch wrote:
> I calculated that our DB is @61GB
> The manufacturer says the tape can hold 50GB compressed
>
> What do you think is happening?
Magic.
Your posting did not specify which level of 9840 drive/cartridge
technology is being used. I'll then assume 9840A. Info I found online
says of the basic 9840:
"The native 20GB cartridge capacity can be significantly extended by
StorageTek's enhanced LZ-1 compression technology (4:1 compression is
typical)."
As your concerns express, however, you are near the edge of a cliff,
and the best general advice in life is "Stay away from the edge." I
would pursue modernization of tape technologies there. If demands
pushed your TSM db further, you might consider firing up a second TSM
server.
Richard Sims
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