converting from "cooked" to "raw" oracle database
i'm working on a database which consists of datafiles in filesystems
(referred to as cooked in some technical documents). i want to look at
the performance difference with all the files raw i.e. using logical
volumes to store the data. i know its possible to backup raw files
using the dd command. what i'm interested in finding out/understanding
is how to perform the opposite process i.e. convert from a 'cooked' to
'raw' storage system for an existing instance containing data. can i
use a dd command to copy data from file to logical volume? is an
export/import the only option? i'm going to be performing a number of
tests myself and will post findings here. any other knowledge on
> i'm working on a database which consists of datafiles in filesystems
> (referred to as cooked in some technical documents). i want to look
> the performance difference with all the files raw i.e. using logical
> volumes to store the data. i know its possible to backup raw files
> using the dd command. what i'm interested in finding
> is how to perform the opposite process i.e. convert from a 'cooked'
> 'raw' storage system for an existing instance containing data. can i
> use a dd command to copy data from file to logical volume? is an
> export/import the only option? i'm going to be performing a number of
> tests myself and will post finding...SN#22938 Oracle Database 11g vs. Microsoft SQL Server 2008
SYSTEM NEWS FOR SUN USERS
Vol 145 Issue 5 2010-04-01 Article 22938 from section "Oracle"
An Edison Group Comparative Management Costs Study
An Edison Group report offers a comparative management costs study
revealing how the Oracle Database widens the manageability lead over
Microsoft SQL Server 2008. The study shows how Oracle Database 11g
can save 43% in time and 41% in database management costs over
Microsoft SQL Server 2008.
Details at http://sun.systemnews.com/g?A=22938
Have a custom version of 'System News for Sun Users...moving oracle database server into a new server
I will be moving oracle from one Solaris server into another Solaris
server, the IP address and box name will be changed. Oracle version is
8.1.7 and O/S is 5.8 on both servers ( just different O/S patch).
Does any one know what I need to do in order to get oracle up and
running again on the new server. I know that I will need to change the
tnsnames.ora and listner.ora, but is there anything else that I need
> Hi all
> I will be moving oracle from one Solaris server into another Solaris
> server, the IP address and box name will be changed. Oracle version is
> 8.1.7 and O/S is 5.8 on both servers ( just different O/S patch).
> Does any one know what I need to do in order to get oracle up and
> running again on the new server. I know that I will need to change the
> tnsnames.ora and listner.ora, but is there anything else that I need
> to do?
When I do this with windows boxes I either:
#1 Install oracle on the new box, create a new database and
export/import from old db to new db
#2 Copy datafiles, init, sqlnet, tns.. etc over from coldbackup or
shutdown old_database, startup nomount and recreate the controlfile to
fit new environment.
#3 Restore from online backup of old_database and apply redo logs, again
recreating the controlfile to fit the new env. (I usually only do this
for "practice" and for creating a development copy of a prod db)
#2 ...Oracle 9i Database Server on Windows 2003 Server
I am wondering if we can install this Server on Windows 2003 Server without
Is there anybody that did that before?
Thanks in advance if someone know the answer.
Yvon Bouchard, B. Sc. Computer Science
I've installed it on windows 2003 enterprise ed. about 1 month ago without
I've installed the version 188.8.131.52 with the patch to 184.108.40.206.
220.127.116.11 is the only version certified by oracle for win 2003.
"Yvon Bouchard" <email@example.com> ha scritto nel messaggio
> I am wondering if we can install this Server on Windows 2003 Server
> any problems.
> Is there anybody that did that before?
> Thanks in advance if someone know the answer.
> Yvon Bouchard, B. Sc. Computer Science
Yvon Bouchard wrote:
> I am wondering if we can install this Server on Windows 2003 Server without
> any problems.
> Is there anybody that did that before?
> Thanks in advance if someone know the answer.
Although I have not installed on Windows 2003 myself, I know of several
such installations and all occurred without issue.
I do note that Oracle has a separate download (CD set) for the WIndows
2003 compared to NT/2000/XP, so I suspect the install for the latter may
not be ...How do I check which Oracle Patches are appplied to an Oracle DataBase Server
I would like to know if someone could help me with this topic, I'm
traying to analize and chek which Oracle Patches are appplied to an
Oracle DataBase Server
>chek which Oracle Patches are appplied to an Oracle DataBase Server
If they were applied with oPatch, then "opatch lsinventory" should show
you what's there.
If you did not use oPatch, then I have no clue. ;-)
> >chek which Oracle Patches are appplied to an Oracle DataBase Server
> If they were applied with oPatch, then "opatch lsinventory" should show
> you what's there.
> If you did not use oPatch, then I have no clue. ;-)
For better or worse ( we know the answer ) opatch is the tool that
install patches from oracle support.
"If you did not use oPatch" ... what?
>"If you did not use oPatch" ... what?
In my 8i environments, there are separate scripts that are run - for
example, for a cpu, it would be 'install_cpu.sh'.
In those cases, I really don't know how (if) one can confirm which
patches have been applied to an environment.
...Oracle Application Server vs. Apache+Tomcat vs.built-in Java
I was requested to install and maintain OAS in order to enable an
environment for Web based database applications using Java technology,
mostly Applets, and perhaps Servlets.
I am convinced that the developers do not really need such a big
animal, but I can't mention the reasons.
Shouldn't Apache+Tomcat be enough? Which would be the conceptual
disadvantages of this simpler solution then?
I am not specially aware of the extra functionality offered by the OAS
beyond the Servlet capability, but some could exist which could be
raised by the developers as an unconditional argument to support the
use of the OAS. I need the contra-arguments. I try not to use tools
that are more complicated that needed.
In my opinion, if no other Oracle tools are being used, then there is
no real need for OAS. Well, at least if you are not going to deal with
hundreds of users of your Internet Application spread all over the
world. The application itself should fulfill high security standards,
but is comparably small, does not use distributed components, does not
need any interaction with other applications. In one word, is has a
By the way, isn't Oracle itself able to run Java? So why should one
need anything else (besides Apache itself) at all? (I mean, not even
Tomcat should be needed then).
Any comments before I dive into the lengthy OAS documentation?
(at this time, I only need some general orientation).
Thanks a lot!...Oracle databases on a server
I have Oracle installation on a SUN UNIX server. I tappears that it is
running Oracle 10.2 and Solaris 8.
I want to find out how many databases are installed on this server.
Would it be true to say that all databases installed on this server
are listed in tnsnames.ora where the 'HOST' entry points to this
On Feb 20, 9:00=A0am, p...@qantas.com.au wrote:
> I have Oracle installation on a SUN UNIX server. I tappears that it is
> running Oracle 10.2 and Solaris 8.
> I want to find out how many databases are installed on this server.
> Would it be true to say that all databases installed on this server
> are listed in tnsnames.ora where the 'HOST' entry points to this
No, these might be different *services* served by the same instance.
The first place to look at is /var/opt/oracle/oratab file, which
should list all Oracle instances on your host. If your Oracle
installation follows OFA (Optimal Flexible Architecture,) which is
usually true, count $ORACLE_BASE/admin/<dbname> directories - each
database should have its own directory under admin. Alternatively, you
can also count spfile<SID>.ora files in $ORACLE_HOME/dbs directory.
Vladimir M. Zakharychev
N-Networks, makers of Dynamic PSP(tm)
On 20 Feb, 06:00, p...@qantas.com.au wrote:
> I have Oracle installation on a SUN UNIX server. I tappears that it is
> running Oracle 10.2 and Solaris 8.
> I want...SqlSpec
Do you wish you had comprehensive, easily navigable documentation for
your SQL Server, Oracle, Analysis Server, MySQL, and Access databases?
Are you a SQL Developer or DBA that just inherited a huge, complex
database with no supporting docs and don't know where to start
learning how it's put together?
Are you an independent contractor working with SQL Server, Oracle,
Analysis Server, MySQL, or Access? Your clients would LOVE you if you
could provide comprehensive documentation about the databases you
Are you a Project Manager who is tired of developers making changes to
databases on live servers and not updating the corresponding spec?
SqlSpec will make sense of it all and generate easy-to-read docs for
you for any database on the following platforms:
* SQL Server 2000/2005
* Oracle 9i (and above)
* MySQL 5.0 (and above)
* Analysis Server 2005
* Access 97/2000/XP/2003
SqlSpec generates documentation in two formats: HTML or CHM. HTML is
useful for publishing your documents on the web or an intranet site.
CHM is useful if you want a single, compact file containing all your
documentation about one or more databases. The CHM is indexed so it is
easily searchable for any keyword. This way you can easily determine
which objects reference the "EmployeeID" column, for example.
You can download a fully featured trial version here: http://www.elsasoft.org
...automate startup /shutdown oracle database server 9i on redhat advance server 3.0
how i automate the oracle database 9i on RedHat Advance server 3.0 automatic
startup and shutdown database in linux advance server 3.0
On Mon, 2 Aug 2004 17:06:37 +0500, "Kashif Hameed" <firstname.lastname@example.org>
>how i automate the oracle database 9i on RedHat Advance server 3.0 automatic
>startup and shutdown database in linux advance server 3.0
as usual: just read the documentation
(and please do so prior to posting as to avoid this type of questions)
Sybrand Bakker, Senior Oracle DBA
...IDS 10 on RHEL4 Linux: I/O benchmark of RAW DEVICES vs BLOCK DEVICES vs COOKED FILES
this is a long message (sorry in advance) which contains some hopefully
interesting information. There are also some questions at the end.
I have this nice new Red Hat Enterprise Linux 4 machine, it's an HP DL 385
with 8 internal 10K RPM SAS disks, 2 dual-core AMD Opteron CPUs and 4 GB RAM.
Machine features 256 Mb of cache on the disks controller. Here it is:
I have installed Informix Dynamic Server 10.00.FC4 (64 bit).
I bumped into this IBM article: http://tinyurl.com/gfovb, where it says that
Informix IDS 10 on RHEL4 Linux is able to access block devices in unbuffered
fashion -like it does for the raw devices- using KAIO (Kernel Asynchronous I/O).
The server is brand new, and I can play with it a bit before it goes into
production, so I decided to do some performance testing of RAW vs BLOCK
vs COOKED, to see which one was better from the I/O performance point of view.
Some definitions, first:
* RAW DEVICE or CHARACTER DEVICE = devices through which data is transmitted
one character at a time, using unbuffered input and output routines; each
character is read from, or written to, the device immediately; such devices
are disk partitions without a file system on them, and are therefore managed
from outside the operating system using direct access and bypassing the OS
layer and its cache
* BLOCK DEVICE = devices through which data is transmitted in the form of
blocks, the most sign...TOAD vs. SQL Developer vs. what / Using TOAD 7.x against Oracle 10g server and an 11g client
Here's my dilemma:
* Love TOAD. Been using TOAD 7.x. Recently upgraded to 10g servers
with 11g clients and TOAD no longer works. The latest TOAD will work
(9.x), but our budget got slashed so no purchase.
* Been using Oracle's SQL Developer as a TOAD replacement. Love that
Oracle's finally made a TOAD-like, free product. And I'm truly
grateful it's in development. But I hate that it's a bit buggy (I have
to shuffle between versions 1.5.1, 1.5.3, and 1.5.4 to get things
done), that it takes a long time to launch (TOAD was faster), that it
has no Load / Save ...it's compatible oracle 8i client, compatible whith oracle 9i server (or oracle 10g server)
I have a client/server application that work on the client with oracle 8i
client connected to
oracle 8i server, Im going to upgrade the server to oracle 9i (or oracle10g)
I wonder if the client will work fine without upgrade version.
Angel R. wrote:
> Hi all,
> I have a client/server application that work on the client with oracle 8i
> client connected to
> oracle 8i server, Im going to upgrade the server to oracle 9i (or oracle10g)
> , and
> I wonder if the client will work fine without upgrade version.
If you have access to the metalink then check the connect matrix at
...Oracle vs SQL Server
We are currently evaluating Honeywell's Optivision software. This
database options that we are looking at are Oracle and MS SQL Server.
I looking for documentation or real world examples - why Oracle is
better than SQL Server. I just cannot see going with a large
installation of a Microsoft product.
On Wed, 15 Apr 2009 12:29:03 -0700 (PDT), andy <email@example.com>
>We are currently evaluating Honeywell's Optivision software. This
>database options that we are looking at are Oracle and MS SQL Server.
>I looking for documentation or real world examples - why Oracle is
>better than SQL Server. I just cannot see going with a large
>installation of a Microsoft product.
The best feature comparison is at
If Optivision was developed for SQLserver and has been 'ported' 1 on 1
to Oracle, it will almost 100 percent certain perform badly, as the
architecture of both databases is fundamentally different.
In that case you shouldn't consider using Oracle, or you must want to
make the life of an Oracle DBA miserable.
Senior Oracle DBA
On Apr 15, 12:29=A0pm, andy <ab...@aetinc.com> wrote:
> We are currently evaluating Honeywell's Optivision software. =A0This
> database options that we are looking at are Oracle and MS SQL Server.
> I looking for documentation or real world examples - why ...Question on Oracle Server 10g Install (.../oracle/oracle/.....
I am in the last stages of installing Oracle Server 10gR2 Enterprise
Edition on a UNIX AIX server. When window "Execute Configuration
Scripts" comes up it tells me to execute
The ".../oracle/oracle/..." stops me cold. I look back in my notes and
everything I wrote suggests I had entered ".../oracle/product/....."
for my ORACLE_HOME. I look at the install log in
/u01/app/oracle/oraInventory/logs and see:
"INFO: Setting variable 'ORACLE_HOME' to
b_1'. Received the value from the command line."
Did I really key /oracle/oracle/ instead of /oracle/ or did the OUI
change the path for some reason?????
> I am in the last stages of installing Oracle Server 10gR2 Enterprise
> Edition on a UNIX AIX server. When window "Execute Configuration
> Scripts" comes up it tells me to execute
> The ".../oracle/oracle/..." stops me cold. I look back in my notes and
> everything I wrote suggests I had entered ".../oracle/product/....."
> for my ORACLE_HOME. I look at the install log in
> /u01/app/oracle/oraInventory/logs and see:
> "INFO: Setting variable 'ORACLE_HOME' to
> b_1'. Received the valu...Oracle on H85 vs. PC Server
**** Post for FREE via your newsreader at post.usenet.com ****
Oracle on H85 vs. PC Server
We are using Oracle 9.0.1 with AIX 4.3.3 on a H85. Configured with 2 600M
CPU and 2G Mem. 4 36G disk set RAID5 in 7133 SSA. (These disk just for
After our software developers moved their database from PC Server to H85, we
found the performance is very low.
I use topas to monitor, it show that disk I/O always >90%, KB_read= 7-8M/s,
KB_write=2-4M/s, CPU wio > 40%. One transaction need about 5 sec.
I dont know what hell a database they design, the DBA told me why the I/O is
so high just be...databases.oracle.server job link
On Mar 12, 10:29 am, "good_online_jobs" <good_online_j...@yahoo.com>
this useless non-Oracle related crapola.
Sites supported by such unethical postings are not work visiting.
-- Mark D Powell --
...SQL Server 2005 vs Oracle
Anyone know where I can find some good resources to help us choose between
SQL and Oracle ( Progress Openedge as well ) . Any comments on what you
would choose ?? We are creating a new Warehouse Management System which wil
manage our very large inventory.
Anyway comments suggestions welcome
this is something like comparing oranges and apples but lets try...
Some questions arise:
- what platform are you intend to work Unix, Windows ?
Well, progress is dead meat, forget it.
SQL Server has many features and looks good, but in mission critical systems
it is still
five year...Pick Vs Oracle/SQL Server
As a relatively large and growing user of D3 we recently appointed
consultants to undertake a wide ranging review of systems and
functionality gap analysis given our rapid plans for expansion over
the coming years.
As a relative newcomer to D3 and Pick (from a RDBMS background!) I
must say that I have found the platform to be stable(mostly) and very
resource friendly from a hardware point of view.
What is the problem though is the application we are currently
utilising was not written with scale as one of it's fundamental design
considerations and we are struggling in many areas to support the
growth and dynamic nature of the business (we have only been around
for 8 years but turnover this year will be around �70m). Couple this
with a VAR who are very much stuck in the 80's model of 'we know best,
the customer knows very little' mindset and who for the last 2 years
or so have continualy missed targets, release dates and who are
developing the product set in directions which the user base have very
little requirements for and you can see the reason we have resorted to
The consultants we are using are well respected, independant and have
much industry experience in many sectors. We have completed the
business case for change and we are now ready to move to the
specification and supplier selection stages - it is worth noting that
D3 or other MV databases have not even appeared on the consultants
horizon and they have in...snap servers and suitability for oracle databases
I'm looking at purchasing a snap server 18000, but i'm getting
conflicting messages with regards to its suitability for providing
I'd have another machine with the oracle installation connecting to the
storage either iscsi or nfs . Has anyone used any of the snap range for
oracle databases ? I don't need super high perfornance, just a decent
environment for development.
On 4 Jan 2006 04:23:16 -0800, firstname.lastname@example.org wrote:
>I'm looking at purchasing a snap server 18000, but i'm getting
>conflicting messages with ...install oracle database server at home
I am thinking of setting up an oracle database on my home computer -
possibly Oracle 9i. I am wondering what spec (in terms of RAM
especially) I would need. Any assistance would be appreciated.
> I am thinking of setting up an oracle database on my home computer -
> possibly Oracle 9i. I am wondering what spec (in terms of RAM
> especially) I would need. Any assistance would be appreciated.
- Pentium 600
- 512M Ram
- 5G free disk
- NOT Windows "Home" edition (XP Home, ME ...)
- Prefer Linux or perhaps Windows 2000 Pro, XP Pro
It is theoretically possible to go dn to 256M RAM but that becomes more an
exercise in frustration.
...Measurements: (was: Raw vs. Cooked files)
if you are interested :
(There's a part where they tested raw devices vs. file system files as
These measurements were all done on zSeries, not by myself as I did not
get to do such extensive work. But this document is really extensive ...)
IBM Informix Development Munich, Germany
email@example.com wrote on 19.05.2005 16:43:23:
> Martin Fuerderer wrote:
> > Hi,
> I emailed a simple response yesterday, but the link seems to be lost.
> Here's another more detailed one:
> It does not matter HOW much memory the OS has for a buffer cache. There
> still several reasons why RAW will ALWAYS be faster than COOKED devices
> OS filesystem files:
> 1) If the OS cache is too small bulk server IO like checkpoints and peak
> load LRU flushing will thrash the cache killing OS and server
> - Thanks for pointing that out Jake.
> 2) All IO to a COOKED device or FS file MUST first be copied from the
> buffers to the OS buffers before the actual IO operation. This MUST be
> extra overhead not needed on a RAW device - by definition!
> 3) If you are writing to an FS file chunk instead of a COOKED device you
> have the additional overhead of the filesystem and direc...Sun server with Oracle Database crashed
My Sun server which is running Oracle database 10.2.0.3.0 got hung and
the server had also crashed.
The /DBATSTDB01/oracle mount point which is mounted on slice c1t0d0s3
is 100%. It is reflecting /var/adm/messages:
Aug 31 15:40:43 blrtstdba02 ufs: [ID 845546 kern.notice] NOTICE:
alloc: /DBATSTDB01/oracle: file system full
The root slice " / " is occupied 82 %.
After the crash, although the /DBATSTDB01/oracle slice is 100% full,
the system hasn't hung so far. Is the /DBATSTDB01/oracle slice is
causing the system to hang or should I check for hardware issues?
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c1t0d0s0 11093692 9000920 1981836 82% /
/devices 0 0 0 0% /devices
ctfs 0 0 0 0% /system/
proc 0 0 0 0% /proc
mnttab 0 0 0 0% /etc/mnttab
swap 2547944 1088 2546856 1% /etc/svc/
objfs 0 0 0 0% /system/object
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap1.so.1 11093692 9000920
1981836 82% /platform/sun4u-us3/lib/libc_psr.so.1
9000920 1981836 82% /platform/sun4u-us3/lib/sparcv9/libc_psr.so.
/dev/dsk/c1t0d0s5 6050982 1646347 4344126 28% /var
swap 2554304 7448 254685...codebase vs Advantage Database Server
I would like to use Codebase C/S instead of BDE.
Can Someone tell me a reason to not do it? :-)
What do you think about Advantage Database Server and Codebase?
Thank very much.
Davide Lo Giudice
...raw vs. cooked files under linux
i am an linux newbie.
I must shift our Databases from SCO Unix (IDS 7.31 UD4) to SuSE Linux
Enterprise Edition 8.1 (2.4.21-190-smp glibc 2.2.5) or (8.2) or 9 and SuSE
Linux Professional 9.3 (18.104.22.168 glibc 2.3.4) (IDS 7.31 UD8).
Later on i want to upgrade (in place) to IDS 10.0.
Which Version of SuSE Linux Enterprise Edition must I use (8.? , 9 ..)?
Under Sco Unix we use raw-devices.
Is it better to use cooked files or raw files under these Linux-Versions?
A colleague mentioned, it can be, that later releases of Linux don't support
raw-devices. Is that correct?
Experiences or comments are welcome.
Thanks in advance.
(Excuse my poor school-english)
sending to informix-list
If you are in a slow-change environment raw-files are not a bad thing.
They create extra problems on the management side that cooked files
do not. Fast-changing environments create more demand on your time
so why put yourself into extra work with raw files? They don't give
you enough of a difference in performance to really warrant them unless
you are really demanding that extra 10%. Cooked files are also also
more flexible on backups, you can back the dbspaces up with a regular
backup tool or use the Informix backup tools, but raw files will have
to be backed up with Informix tools only.
SLES9 is quite a sea change from SLES8, and you could probably get away
without SLES and go with the workstation Pro 9.3 if you are on a budget.