Hi Len.. good morning.. :) Yes, some of my media server is Solaris, some is Windows. Ah, I'm understand now.. where's the drive compression came from.. :) Thank you Len.. you remind me about the ''c" on the drive's setting.
Btw, if it is a Windows platform, do you know from where the compressions set? Since on windows, the drives only detected as: Tape0, Tape1, etc... Thank you Len.. Regards, Martin On Tue, Feb 26, 2008 at 8:46 PM, Len Boyle <[EMAIL PROTECTED]> wrote: > 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 the following any of the dev entries > with the "c" will call for hardware compression. In netbackup we use > /dev/rmt/0cbn > > > > len > > > > > ls -l /dev/rmt/0* > > lrwxrwxrwx 1 root root 68 Jul 26 2007 /dev/rmt/0 -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0: > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0b -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:b > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0bn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:bn > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0c -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:c > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0cb -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:cb > > lrwxrwxrwx 1 root root 71 Jul 26 2007 /dev/rmt/0cbn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:cbn > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0cn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:cn > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0h -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:h > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0hb -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:hb > > lrwxrwxrwx 1 root root 71 Jul 26 2007 /dev/rmt/0hbn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:hbn > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0hn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:hn > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0l -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:l > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0lb -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:lb > > lrwxrwxrwx 1 root root 71 Jul 26 2007 /dev/rmt/0lbn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:lbn > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0ln -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:ln > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0m -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:m > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0mb -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:mb > > lrwxrwxrwx 1 root root 71 Jul 26 2007 /dev/rmt/0mbn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:mbn > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0mn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:mn > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0n -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:n > > lrwxrwxrwx 1 root root 69 Jul 26 2007 /dev/rmt/0u -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:u > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0ub -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:ub > > lrwxrwxrwx 1 root root 71 Jul 26 2007 /dev/rmt/0ubn -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED],0:ubn > > lrwxrwxrwx 1 root root 70 Jul 26 2007 /dev/rmt/0un -> > ../../devices/[EMAIL PROTECTED],600000/SUNW,[EMAIL PROTECTED]/[EMAIL > PROTECTED],0/[EMAIL PROTECTED] > > > > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *Martin Ruslan > *Sent:* Monday, February 25, 2008 11:45 PM > *To:* Justin Piszcz > *Cc:* [email protected] > *Subject:* Re: [Veritas-bu] LTO tapes handling more that it supposed > > > > 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 running automatically for few types of files or datas? > And this is happening not to all tapes.. only few tapes.. > some is oracle database, and some is windows flatfile. > > @Simon: > hopefully not David Copperfield who make strange thing happens on my > backup.. :) > > @everyone: > So this is normal if it's a database backup? (specially oracle). > just trying to describe all the inputs.. :) > > Rgrds, > Martin > > On Mon, Feb 25, 2008 at 7:04 PM, Justin Piszcz <[EMAIL PROTECTED]> > wrote: > > > > On Mon, 25 Feb 2008, Martin Ruslan wrote: > > > 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.. > > Is it maybe the block size or something? Need your advice.. > > > > Regards, > > Martin > > > > The tape drive does compression. We see upwards of 3.0++ to 1 in some > cases. > > Justin. > > >
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