Can I partition a LUN into 2 and create 2 diskgroups

Hi everyone.
I have a LUN that I want to share the space across 2 ASM diskgroups.
The LUN is from an EMC SNA and presented using multipathing, and appears as device emcpowera
Normally, I would create a single diskgroup per LUN, but in this case, is there any reason why I cant do the following?
1. fdisk /dev/emcpowera and create 2 equal size partions
2. oracleasm createdisk DG_DATA1 /dev/emcpowera1
3. oracleasm createdisk DG_DATA2 /dev/emcpowera2
4. Create diskgroups on each of DG_DATA1 and DG_DATA2 ?
Thanks

Hi,
While 2 diskgroups (one for DATA and one for FRA) is best practices from Oracle:
http://www.oracle.com/technetwork/database/asm-10gr2-bestpractices.pdf
I personally would not go with only one LUN per diskgroup.
2 reasons:
-> It is best practice that all LUNs in a diskgroup should be approximately the same size, since ASM will automatically re balance the diskgroup based on a percentage for filling.
And if you need to increase the space it is more difficult to increase a lun online (since some processes might not be accepting the change without a reboot), than to simply add another one.
Now if you take one big LUN and need space (and choose not to increase the volume) you should add a LUN with the same size... resulting in maybe waisting a lot of space, just for a few megabytes needed additionally.
So I vote for using more (around 4) LUNs just to be more flexible in increasing the space.
-> Second reason are the I/O characteristica of the OS. Sometimes it is easier for an OS to handle the I/O if there are multiple LUNs than just one.
PS: It is totally o.k. to leave the mirroring to the storage system (if no other special requirements, like host based mirroring are needed) and use extarnal redundancy.
Just my 2 cents...
Sebastian

Similar Messages

How can I set BPEL server enviorment and create BPEL domain?

Without use the http console, how can I set BPEL server enviorment and create BPEL domain?
When I try to use API like below
import com.oracle.bpel.client.Server;
Server s = new Server(ServerAuthFactory.authenticate("oracle","localhost"));
But I always got four exceptions and one warning like below:
java.io.FileNotFoundException: C:\Workspace\WOSEDISystem\BPEL_Domain_Creation\config\security.properties (The system cannot find the path specified)
java.io.FileNotFoundException: C:\Workspace\WOSEDISystem\BPEL_Domain_Creation\config\ejb.properties (The system cannot find the path specified)
Warning: unable to read transaction.interoperability config property
java.io.FileNotFoundException: C:\Workspace\WOSEDISystem\BPEL_Domain_Creation\config\security.properties (The system cannot find the path specified)
java.lang.Exception: Failed to create "ejb/collaxa/system/ServerBean" bean; exception reported is: "javax.naming.CommunicationException: Can't find SerialContextProvider
Is it right to use com.oracle.bpel.client.Server like this, please help me.
Best regards,
Vita

Anyone can help me? Because I need deploy BPEL process on production server, so I need the Java funtion to create domain. Thank you very much if you can tell me the correct method of using com.oracle.bpel.client.Server API.

Hi. My iMac hard drive is running Mavericks. I have an old version of Quark Xpress (3.32) which won't run in Mavericks. Can I partition my hard drive and run an older system on one partition, so I can access my Quark? Is that possible?

Hi. My iMac hard drive is running Mavericks. I have an old version of Quark Xpress (3.32) which won't run in Mavericks. Can I partition my hard drive and run an older system on one partition, so I can access my Quark? Is that possible?

Hi ancelau,
QuarkXPress 3 is a Classic Mac OS application, so you need a version of OS X that still supports Classic. I believe 10.4 was the last one.
So if you have an iMac that boots with 10.4, then yes that is possible. I doubt though that newer Macs boot with OS X 10.4.
So why don't you upgrade QuarkXPress 3 to a newer version? I am not just asking that because I want you to spend money with us.
Typically using software that was released almost 20 years ago is just feasible when you keep an environment that was current at the time of release or a few years after, so an older Mac with a operating system present at that time. 20 years in IT is a lot.
So my opinion is that on a new Mac with a brand new operating system you need to use something a bit more current.
How about QuarkXPress 9 (released 3 years ago) or QuarkXPress 10? You are better off with v9, as QuarkXPress 10 only opens v7 and higher (whereas QuarkXPress 9 opens v3.1 and higher).
Or - I am even happy to make an exception - upgrade to 9 and we give you 10 for free? Let me know please.
Thanks
Matthias

Can I partition a hard drive and keep files on separate partition?

That is, can I partition a hard drive and have the system software on one drive, and everything else on the other? That is, have the system software on one drive, and on the other have pictures, music, documents, and all other files other than the system software? Thanks. David

Hi GK1951, and a warm welcome to the forums!
Great question, as a matter of fact it does... or would, but the Devil is in the Details as they say.
IME, OSX works best with 100+GB free disk space, so if that partition scheme cuts that down then you'll lose speed, but ony a few would notice the diff until you get down to 30 GB free space.
I can't say much, but my VM at the moment is 143.55 GB, I've been told that isn't a real number, but hey, it means something!
But there are so many factors affecting this that really, the only rule that seems to hold is Give OSX as much HD Free Space as you can & it'll be happy.
I imagine on the MacPro you could say use the outer Partition of several Disks... one for the OS, one for VM, one for APPs, etc. and gain the most!
Maybe these will help...
iMac/24"/2.4 GHz/4GB RAM/320 GB SATA drive, You can see that Cached values account for more than the Zone on the HD really.
Little 4K Random R&Ws suffer greatly no matter what...

Why can't Adobe continue to support and create updates.....

Why can't Adobe continue to support and create updates for MAC G5 OS X Tiger?
I'm sure I'm not the ONLY owner and operator of this MAC machine. I'm finding it
VERY frustrating how your comany, JAVA and Apple of just written this machine off.
You know, MAYBE I'd be more understanding if this MAC product or ALL MAC
products weren't so reliable. However, like many MAC users out there
there's NOTHING wrong with my machine or my current programs OTHER than the
simple fact I can no longer update Flash player or Java... all because
my machine is no longer supported.
WHY can't updates continue to be made? This way,ALL consumers are happy:
those who feel it wasteful economically and ecologically to
replace a computer with a NEW computer, and those who just like to have the latest
and greatest tech toys.

MD Optofonik wrote:
Dear God in heaven, I can't even simply make a basic edit to correct a spelling mistake.
You can - click on the "Actions" link at bottom left of the post.
As to the rest - nobody seems to like this forum, and what you're saying has been said on numerous occasions already.
It's Adobe's fault for "buying in" this forum (sorry - "Social Business" ) service, but it's Jive's fault for producing such a crappy solution in the first place.

How can a use a itunes soft. and create a new id

how can a use a itunes soft. and create a new id itunes ?
and
we are update the lattest version in my iphone 3gs 16gb ?
how can backup my iphone and install other application ?
pls. reply me .
jayesh panchal

It is not possible to delete an apple id completely. You can only delete information like credit card, adress, name... To do this, go to iTunes Store, click on your email adress in the upper right corner and enter your password. Now you can manage your account.
An apple id without password is not possible.

How can I delete my apple id and create another one with the same email?

How can I delete my apple id and create another one with the same email?

So sorry; somehow I forgot to provide the link. Here it is ...
Frequently asked questions about Apple ID
Again, my apologies.

Can i delete my current account and create a new itunes?

I want to delete my current itunes and create a different one. Can i transfer my purchused items from old one to new one? I wanna create the new itunes with different info but my name. is it possible?

"I want to delete my current itunes and create a different one."
Why would you do this?
"Can i transfer my purchused items from old one to new one? "
No.
"I wanna create the new itunes with different info but my name. is it possible?"
Why not just change the info? Go into your account and edit whatever you like.

How can I delete my itunes account and create a new one ?

Hi Everyone
I've got a problem with my current account itunes (french) :
I'm between France and Spain. I usaully use french applications but I would like to be able to pick some apps in the spanish itunes store, and in the english one (such as i already do in the french one). Lately I change my payment data to my spanish visa card data, since then I cannot download any app anymore.
So I tried to create a new account in the itunes store choosing the spanish location, but it s not possible since my actual email adress is the back up email adress of my french account .
Can you please provide me some support ?
A good day to you all.
Audrey

You can access www.appleid.apple.com and open your old account and delete.

Can I partition an external drive and install 10.6.8 so I can run some older software?

I have older software that won't run on my 21.5 iMac. Can I partition a 3TB Lacie external drive, then install 10.6.8 on it so I can use the older software?

The computer that I purchased did come with Parallels Desktop 10 for Mac, but I thought that was only for running some Windows software. Not a clue how to use it.
I actually asked a similar question about installing the older system on the external drive when I talked to Apple yesterday. They guy said go ahead and try it! Huh?

Can I copy MATERIAL adapter object and create new business object in R3AC1

Hi experts,
I need to copy MATERIAL adapter object and create a new business object R3AC1.
Please let me know whether this is feasible.
Thanks & Regards,
Keya

Usually when there is a need to change/create an adapter object, I suggest to change object class to CUSTOMIZING in R3AC1. Then save it and call transaction R3AC3. There do necessary changes and afterwards switch back to original object class. There is no copy functionality for adapter objects. Kindly use transaction R3AC3 to create a new adapter object and maintain all tabs according to your requirements. When you are finished, kindly change the object class "CUSTOMIZING" to the original class name you're copying and the new adapter object will be visible in R3AC1.
Documentation can be found in
https://service.sap.com/ce -> Early Product Training > SAP CRM 4.0 & mySAP CRM Edition 2004 .. on the learning map, please choose "Development Consultant" -> Open "Enhance CRM Scenarios"
Here you can find a lot of guides and SAP tutors on how to create an adapter object, example coding, and so on.
To enable Filter Fields for an Adapter object make requisite changes in table SMOFFILFLD and generate the Adapter Object using SMOGGEN. CHeck table CRMPAROLTP in ECC to enable Filtering

Can i partition my mbp into three parts?

I already have my MacHD drive, the recovery drive, and a boot camp drive running windows. I want to partition a small amount and run centos linux on it. Is it possible? can i use bootcamp? Also, does anyone know if i need linux support drivers much like when doing boot camp and needing windows support drivers?

Boot Camp Assistant is for Windows. My recommendation is to use a VM like Parallels, Fusion, or VirtualBox to install Linux.

Can i delete the Previous request and create the new request for loading

Dear Experts,
I use 0FIGL_V40.Cube in my system. These Cube does not contain delta capability.i mean for every time i wil load Full only.
Here my question is the first day load full load,and second day i want to load the data.But can i delete the previous request and load the data with new request.
Please guide me .
Regards,
Srinivasan.

Hi Srinivasan,
I hope the DS itself is not Delta enabled. If so i think you can delete the contents of PSA. This step can be added in the Process chain before actually loading the FULL IP to DS. Then you can include a step to "Delete Entire data from DataTarget" step in the process chain before actually loading the DTP(Can be Delta/FULL. I dont think there is any impact here since both will bring only one request from DS to DataTarget since PSA will have only one request) from DS to Cube.
Hope it helps!
Regards,
Pavan

Can I partition to boot into 2 versions of OSX? 10.3.9 AND latest Leopard?

Here's what I'd like to do - I have a Powerbook G4 12" 1.33 and I want to get the latest version of OS X Leopard but also need to run Panther 10.3.9 too so with all this talk of bootcamp and the like for running win XP from a separate partition I wondered is it possible to do the same with 2 versions of OZ X?
I don't mind having to start from scratch and reinstall everything - I'll have the install disks for both versions.

ElGlasso:
Welcome to Apple Discussions.
Yes, it is possible. Whether it is advisable or not depends on the size of your HDD. If your HDD is not very big you are likely to end up with partitions that are too small to be practical. So please post back with your HDD size. An option would be to install one of the larger HDDs, something between 100 GB to 160 GB or even 250 GB.
In any case, the answer is yes, it is possible.
Post back with the information requested, then I can give you complete step-by-step directions for partitioning etc.
Cheers
cornelius

Can i delete my recovery drive and create a new one? (HP Envy m6 ko25dx)

Hi, I have an HP envy m6 ko25dx that I had some issues upgrading from Windows 8 to 8.1. I was getting stuck at a black screen on start up. I had to contact HP support by phone and they ended up sending me a flash drive with factory recovery data. When I went through the process of getting my computer working again, one of the steps affected the recovery partition on drive D: to store the data from the flash drive in order to proceed. I finished the process and got my computer back to Windows 8. After completing that, I now have a problem. When clicking on file explorer, the D: drive shows as almost full but when I click on it to view files, it says "this folder is empty" . When I go to computer management-storage-disk management, I have 2 recovery drive D:'s. One shows NTFS for file system, while the other has a blank and they are both 11% free (89% full). Also, there are 3 other un-named volumes; 2 have a status of "healthy (recovery partitions)" and 1 has a status of "healthy (EFI system recovery)". Those un-named volumes are a total of 1,100 mb's (1.1 gb) and they are each 100% free. The only thing that shows when i right click all of those volumes, D and un-named, is help and when I click that, it is in fact, not helpful. When I right click the C: drive, it shows: open, explore, mark partition as active, etcetera... Is there a way for me to access and move the un-named volumes back to C:? And is there a way for me to delete the D: drive data and re-create the recovery data from this point? A week ago I dared to try upgrading from 8 to 8.1. During the process it was recommended that I create a recovery set but was unable to so due to the full D: drive and the fact that i didn't have an external storage large enough. I decided to update the drivers and proceed without creating the recovery set or creating a volume large enough from the space I have on C:. When the computer was done with installing and updating everything it could, it got stuck on a black screen again, this time with the cursor and the ability to access the task manager with Ctrl+Alt+Del. I had to use that to manually download the Windows 8.1 drivers since it wasn't possible to do it from 8. 8.1 is now working. I keep getting warnings about D: being so full and I understand having a nearly full drive affects computer performance. If more information is needed, please let me know. Thanks for reading if you made it this far!
This question was solved.
View Solution.

All the "drives" you see are part of Windows 8 and HP's factory installation. The recovery partition is designed to return the computer to a factory like state and nothing more. You cannot delete the D: drive "HP Recovery" partition and recreate an updated recovery image. The following image shows the factory installed partitions on my HP 13 Split x2;
If you have any further questions, please don't hesitate to ask.
Please click the White KUDOS "Thumbs Up" to show your appreciation
Frank
{------------ Please click the "White Kudos" Thumbs Up to say THANKS for helping.
Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
This is a user supported forum. I am a volunteer and I don't work for HP.
HP 15t-j100 (on loan from HP)
HP 13 Split x2 (on loan from HP)
HP Slate8 Pro (on loan from HP)
HP a1632x - Windows 7, 4GB RAM, AMD Radeon HD 6450
HP p6130y - Windows 7, 8GB RAM, AMD Radeon HD 6450
HP p6320y - Windows 7, 8GB RAM, NVIDIA GT 240
HP p7-1026 - Windows 7, 6GB RAM, AMD Radeon HD 6450
HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

Can I partition a LUN into 2 and create 2 diskgroups

Similar Messages

Maybe you are looking for