Author: "Martin Ruslan" <mit.martin AT gmail DOT com>
Date: Mon, 25 Feb 2008 18:47:38 +0700
Dear gurus, have you ever meet this condition? My LTO3 tapes handling more than 800GB (about 1.2TB) on the media's report. I don't have any idea for this.. The backup not running the compression also
Author: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Date: Mon, 25 Feb 2008 07:04:37 -0500 (EST)
The tape drive does compression. We see upwards of 3.0++ to 1 in some cases. Justin. _______________________________________________ Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu htt
Author: "WEAVER, Simon \(external\)" <simon.weaver AT astrium.eads DOT net>
Date: Mon, 25 Feb 2008 07:25:34 -0500
Hi Martin You may have magic tapes :-) Seriously, its likely the hardware does compression, rather than your Data. Must admit, I have never heard it exceeed the manufacturers claims. Simon From: veri
Author: "Spearman, David" <spe08 AT co.henrico.va DOT us>
Date: Mon, 25 Feb 2008 07:18:12 -0500
I haven't seen it on NBU yet, but it is "normal" on a backupexec 11d system backing up some legacy SCO systems we have. David Spearman County of Henrico --Original Message-- From: veritas-bu-bounces
Author: "Jim Watt" <jwatt AT emagsolutions DOT com>
Date: Mon, 25 Feb 2008 07:30:35 -0500
The hardware has it's own compression routine aside from what you chose in your software settings. The Tape manufacturers just give an average compression rate. If you are backing items like exe, dll
Author: "WEAVER, Simon \(external\)" <simon.weaver AT astrium.eads DOT net>
Date: Mon, 25 Feb 2008 08:36:58 -0500
Martin, Maybe you are getting better than expected tape compression then ? possibility perhaps? From: Spearman, David [mailto:spe08 AT co.henrico.va DOT us] Sent: Monday, February 25, 2008 12:18 PM T
Author: "Paul Keating" <pkeating AT bank-banque-canada DOT ca>
Date: Mon, 25 Feb 2008 13:38:18 -0500
LTO3 is 400/800GB spec, assuming 2:1 compression. You can get a LOT more than that on a tape is your data is highly compressable (ie. ASCII text files) -- --Original Message-- From: veritas-bu-bounce
Author: "Chacko, Savil" <SavilChacko AT templeinland DOT com>
Date: Mon, 25 Feb 2008 14:28:33 -0600
When we were running LTO3, we also were consistently able to fill up tapes for a certain data set to about 1.2 TB. We had multiple restores of all 1.2 TBs and validated the data. The data was actua
Very common in my experience. Databases are usually layed out for speed of access and updates, not for compactness of data. Often tablespaces are pre-allocated which can provide more blank space to c
Author: "Martin Ruslan" <mit.martin AT gmail DOT com>
Date: Tue, 26 Feb 2008 11:44:46 +0700
Dear Justin, sounds make sense for the hardware compression. but, I never set the hardware compression on the NBU. Did the compression do it self without any configuration triggered? I mean, is it ru
Author: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Date: Tue, 26 Feb 2008 04:07:25 -0500 (EST)
If the drives can do it, from what I have always seen NetBackup turns it on by default (other software that I have used may or may not).. Yes, especially Oracle. _____________________________________
Good Morning Martin I do not remember which platform you are using for you media servers. On solaris using the st driver the use of hardware compress depends on which device name you are using. from
Author: "Martin Ruslan" <mit.martin AT gmail DOT com>
Date: Wed, 27 Feb 2008 10:04:42 +0700
Good Morning Martin I do not remember which platform you are using for you media servers. On solaris using the st driver the use of hardware compress depends on which device name you are using. from
Author: "Martin Ruslan" <mit.martin AT gmail DOT com>
Date: Wed, 27 Feb 2008 10:05:49 +0700
If the drives can do it, from what I have always seen NetBackup turns it on by default (other software that I have used may or may not).. Yes, especially Oracle. _____________________________________