Re: DBV slow W2K server

Average speed 30 Mb/sec. It's relativelly low, unless you are coping
from 1 spindle to the same spindle.

What version of Oracle ? Have you tried RMAN ? If the storage behind
is an array I think you will be surprised by the speed improvements.
That is if you have "filesystemio_options" set to "setall".

--
Christo Kutrovsky
Senior Database/System Administrator
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/


On 6/1/06, O'Neill, S. (Seán) <Sean.oneill@xxxxxxxxxx> wrote:
Use XCOPY to copy files disk-to-disk.  Takes approx 80 minutes to copy files 
(147GB).  2GB RAM.

-----Original Message-----
From: Christo Kutrovsky [mailto:kutrovsky.oracle@xxxxxxxxx]
Sent: 01 June 2006 14:08
To: O'Neill, S. (Seán)
Cc: Sriram Kumar; List, Oracle-l Freelists
Subject: Re: DBV slow W2K server


So how do you backup your files ? Windows copy ?

If you are doing that, you are totally trashing your windows cache. I am not 
sure how big your system is (db size/RAM size) but I would guess that during 
the backup it's not performing that good ?


On 6/1/06, O'Neill, S. (Seán) <Sean.oneill@xxxxxxxxxx> wrote: > > Hi Sriram, > > The particular DB has an offline backup taken each night Mon - Fri. > This is done on a disk-to-disk basis. I was simply running the DBV on > the backed up files as an extra check to verify if any corruption was > present in files. We've not moved to RMAN (yet!). The AV settings are > as they always were on the drive in question, i.e. excluded. > > - Seán > > -----Original Message----- > From: Sriram Kumar [mailto:k.sriramkumar@xxxxxxxxx] > Sent: 01 June 2006 12:50 > To: O'Neill, S. (Seán) > Cc: List, Oracle-l Freelists > Subject: Re: DBV slow W2K server > > Hi Sean, > > As pointed out by gurus it doesn't make sense to run a DBV on > DB/Backup on a daily basis for a DB that is big in size. you can try > to schedule the DBV may be once in a week/fortnight/month(off peak > time when nothing else is > running) as a proactive measure. > > I assume you are not using RMAN for DB backup.I dont know the size of > your DB/backup and hence comment on the time taken for the DBV. > > Being a Windows Box, I am to ask you an basic question. Is by any > chance the Virus Scanner is enabled on the area where Oracle > Datafiles/Backups are located?. If yes this could slow down things and > may be you can configure the VS to ignore these areas. > > Best Regards > > Sriram Kumar > > > > On 5/30/06, =?iso-8859-1?Q?O'Neill@xxxxxxxxxxxxx <=?iso- > 8859-1?Q?O'Neill@xxxxxxxxxxxxx> wrote: > > Hi Folks, > > > > Would appreciate some help/guidance with an issue I've noticed with > > the > dbv utility on Windows 2000 server. I'm using this utility as part of > an offline backup process. For some reason the dbv is now taking over > 9 hours to complete. It used to take about half this time. I've been > to Internet to try and track down if this is a known issue but to no avail. The Oracle > manuals have not been much help either. I've looked at the server and it > does not appear to be maxed out by anything that would cripple the dbv > executing. > > > > Regards, > > - Seán O' Neill > > -- > > http://www.freelists.org/webpage/oracle-l > > > > > > > >


-- Christo Kutrovsky Senior Database/System Administrator The Pythian Group - www.pythian.com I blog at http://www.pythian.com/blogs/



--
Christo Kutrovsky
Senior Database/System Administrator
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/
--
http://www.freelists.org/webpage/oracle-l


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