Advice on allocating SAN storage to a virtual database server on VMware Post: 303027932

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Operating Systems Linux Red Hat Advice on allocating SAN storage to a virtual database server on VMware Post 303027932 by gull04 on Friday 28th of December 2018 10:19:35 AM

12-28-2018

Registered User

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.

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LEARN ABOUT SUNOS

chs

chs(7D) 							      Devices								   chs(7D)

NAME

       chs - IBM ServeRAID PCI host adapter driver

DESCRIPTION

       The chs driver is the IBM ServeRAID PCI controller driver.

PRECONFIGURATION

   Known Problems and Limitations
       To  prevent  data  loss,  a  SCSI disk drive that is not defined as part of any physical pack within a logical drive will not be accessible
       through the Solaris operating environment.

CONFIGURATION

       Auto-configuration code determines whether the adapter is present at the configured address and what types of devices are attached  to  it.
       The IBM ServeRAID is primarily used as a disk array (system drive) controller.

       To  configure the attached disk arrays, you must configure the controller (using the configuration utilities provided by the hardware manu-
       facturer) before booting the Solaris operating environment You use the configuration utilities to set RAID levels, stripe parameters, cache
       mechanisms and perform other functions. For more information, see the user manual supplied with your hardware.

FILES

       /kernel/drv/chs.conf	       chs configuration file

       /dev/dsk/cndn[s|p]n	       block device

       /dev/rdsk/cndn[s|p]n	       raw device where:

       cn			       controller n

       dn			       LUN n (0-7)

       sn			       UNIX system slice n (0-15)

       pn			       fdisk(1M) partition(0)

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Architecture		     |x86			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       fdisk(1M), attributes(5), cmdk(7D)

SunOS 5.10							 27 November 2000							   chs(7D)