Networker

[Networker] Data Compression

2003-07-07 15:28:39
Subject: [Networker] Data Compression
From: Mukesh Ghildiyal <MGhildiyal AT WYSE DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Mon, 7 Jul 2003 12:28:30 -0700
Hello networker partners,

I have a data compression issue. Let me tell what I have

Library :  Storagetek L180 with  6 SDLT drives
Server:  HPUX 10.20
Connnection: 2 HSC scsi cards connecting to 6 drives (3 each) and one HPPB card 
attached to Jukebox
Tapes: SDLT (Fuji & Maxell)  says 160gb/320gb SDLT 320 and 110gb/220gb SDLT 220

  My question is:

I believe we are at SDLT 220 and I am backing up to this library my oracle 
application and database. I am not using software compression and depend on 
hardware compression I have drives configured as
/dev/rmt/c2t2d0BESTnb  

When I backup I am only getting 140gb in each tapes whereas I expect at least 
200 to 220 gb per tape. Please let me know if there is any setting at the 
library  to achieve the required compression or at the O/S level???



Thank you very much in advance.


Mukesh

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