Thanks for you all's reply!
But then what is the actual count for the Data I backup every day. Is
there a way I can find out from the Legato system how much I backup?=20
I also have Legato Management Console and when I see the Group report I
see a GB/MB number beside it. Does this number represent the correct
data amount for the group or the client in the group?
Thanks
Somen
-----Original Message-----
From: Paul L. [mailto:plangfor < at > AB.BLUECROSS.CA]=20
Sent: Friday, September 24, 2004 10:58 AM
To: NETWORKER < at > LISTMAIL.TEMPLE.EDU
Subject: Re: [Networker] Tape full
What you are backing up makes a huge difference on compressability.
We have LTO 2 drives, tapes are 200GB uncompressed. My Unix backups
consistently get over 500GB on a tape, and some have over 600. Thease
are
primaraley large db files. On the other hand. My Novell backups barely
get
200GB per tape, and windows is usually around 300 - as these are a large
number of small files.
Paul
-----Original Message-----
From: Darren Dunham [mailto:ddunham < at > TAOS.COM]
Sent: Friday, September 24, 2004 9:05 AM
To: NETWORKER < at > LISTMAIL.TEMPLE.EDU
Subject: Re: [Networker] Tape full
Quote:
We use LTO generation one tapes and tape drives. I am confused by the
display of their capacity.
Some tapes have 139 GB on it and it displays as full
Some tapes have 180 GB on it and it displays as full
Some tapes have 129 GB on it and it displays as 100% appendable
Does anyone have any explaination for this?
Compression on tapes depends on the data. Networker just feeds data to
the volume until it doesn't fit. If you feed an empty database, you can
easily get over 400% compression. If you feed lots of .zip, .jpg, .mp3
files, positive compression probably won't happen.
'full' means that Networker thinks the tape took all the data that would
fit.
'100%' means that an amount of data greater than the volume capacity has
been written to the volume. Data will continue to be written until the
drive informs the system that the tape is full.
You may adjust the volume default capacity to better reflect how much
space is generally available on your volumes, but that figure only
affects reported percentages. It does not affect the actual capacity
used by Networker.
Darren Dunham ddunham < at > taos.com
Senior Technical Consultant TAOS
http://www.taos.com/
Got some Dr Pepper? San Francisco, CA bay area
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