12-28-2018
Hi dkmartin,
I'll reiterate, there is a dependency on the backend configuration.
If you have a requirement to slice and dice a 1Tb LUN, you'll end up (from your comments) /dev/sda1, /dev/sda2, /dev/sda3 etc....... These would then be used for the "rootvg", the "appvg" the "dbvg" or any other way that you decide to apportion the disk.
If you decide to go for individual LUN's then you would have effectively a "ROOT_LUN", an "APP_LUN" and a number of "ORACLE_LUNS" for things like redo, archive, table space and all the other bits of an Oracle Instance - basically whatever your standard build is.
Without knowing what the backend storage is and how it is configured, how the storage is managed and how it is tiered are the arrays intelligent along with a miriad of other requirements it isn't possible to be any clearer with the information.
At the back end this could be all on one physical disk (You don't want that) or it could be spread over many physical disks.
For simplicity of management a single LUN is good, if the I/O on the VM will allow you to do that without impacting performance.
As to this being "configuration advice" it is not, there is no way that any advice could be given based on what you have told me - the sum total of the knowledge inparted by yourself is that "It's currently AIX and it's moving to Linux on VMware - the LUN mentioned is 1Tb and you use Oracle".
Oh! and it won't be using ASM.
Regards
Gull04
Last edited by gull04; 12-28-2018 at 11:25 AM..
Reason: Minor addition.
5 More Discussions You Might Find Interesting
1. Solaris
Thinking of using our San for network backups..
Have a Netra 240 being installed and planning to get some space on our San.
Do you know what software is used to access the San from my server or what I would need to do? I know how to connect to local storage, disk arrays etc but not sure what... (1 Reply)
Discussion started by: frustrated1
1 Replies
2. Solaris
Hi,
I have configured our SAN Storage to be connected to our new SUN T5220.
On the SAn it looks all fine
on the server I do not see any connection:
cfgadm -al
Ap_Id Type Receptacle Occupant Condition
c1 scsi-bus connected ... (4 Replies)
Discussion started by: manni2
4 Replies
3. SuSE
Hi, Here is the issue. Some more memory has been added from vCenter to the virtual machine. From the virtual machine running SuSE 11 SP3.
# modprobe acpiphp
# modprobe acpi-memhotplug
# grep -v online /sys/devices/system/memory/*/state
#
It looks like there is no offline memory, but free... (1 Reply)
Discussion started by: aixlover
1 Replies
4. UNIX for Dummies Questions & Answers
Good Morning everyone,
I want to know how to allocate unallocated drive space from a SAN to a file system that desperately needs the drive space. Does anyone have any documentation or tips on how to accomplish this? I am running on AIX version 6.1. (2 Replies)
Discussion started by: ryanco
2 Replies
5. Homework & Coursework Questions
Hi Team,
How do i mount or connect the SAN storage to a specific folder. I have tried to mount it but each time i can only mount 900GB of the storage to the folder:
ipmi1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-root_vol
... (0 Replies)
Discussion started by: ElVista
0 Replies
format(1M) format(1M)
NAME
format - format an HP SCSI disk array LUN
SYNOPSIS
device_file
DESCRIPTION
formats one LUN of the HP SCSI disk array associated with device file, device_file. The format will usually be a soft or zeroing format,
in which the controller writes zeroes to the data area and parity area, if any, of the LUN.
NOTE: The above should always be true of a sub-LUN, but the controller might decide, based on certain conditions, to do a full format of a
regular LUN, which consists of sending a mode select and a media initialization command to the physical drive(s) in question, fol-
lowed by zeroing the data and parity area, if any. The conditions which will cause a full format to be done are as follows:
1. The controller received a Mode Select command which requires a drive sector size change.
2. The controller received a Mode Select command which changed a parameter in the Format Device Page(0x03).
3. The LUN contains one or more failed drives. In this case only a certain subset of the drives containing the failed drives
will be formatted.
4. Either the FmtData or the CmpLst bit in the Format Unit CDB is set.
RETURN VALUE
returns the following values:
0 Successful completion.
-1 Command failed.
DIAGNOSTICS AND ERRORS
Errors can originate from problems with:
o
o SCSI (device level) communications
o system calls
Error messages generated by format:
An error in command syntax has occurred.
Enter command again with all required arguments, in the order shown.
To ensure that
does not modify a disk array that is being used by another process, attempts to obtain exclusive access to the disk array. If the
disk array is already opened by another process (for example, LVM -- the Logical Volume Manager), a "" error message is returned by
the driver. To eliminate the "" condition, determine what process has the device open. In the case of LVM, it is necessary to
deactivate the volume group containing the array before formatting array LUNs (see vgchange(1M)).
The LUN number, which is derived from the device file name, is out of range.
The addressed LUN
is not configured, and thus is not known to the array controller.
Utilities must be able to open the device file for raw access.
The device being addressed is not an HP SCSI disk array.
SCSI (device level) communication errors:
Sense data associated with the failed operation is printed.
Error messages generated by system calls:
uses the following system calls:
and
Documentation for these HP-UX system calls contains information about the specific error conditions associated with each call. does not
alter the value of The interpretation of for printing purposes is performed by the system utility
EXAMPLES
To format the HP SCSI disk array LUN on a Series 800:
WARNING
The command will destroy all user data on the addressed LUN.
DEPENDENCIES
The HP C2425 and HP C2427 disk arrays are only supported on Series 700 systems running HP-UX version 9.0X.
The HP C2430 disk array is supported on Series 700 and 800 systems running HP-UX versions 9.0X and 10.0X.
AUTHOR
was developed by HP.
format(1M)