Advice on allocating SAN storage to a virtual database server on VMware Post: 303027922

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Operating Systems Linux Red Hat Advice on allocating SAN storage to a virtual database server on VMware Post 303027922 by gull04 on Friday 28th of December 2018 09:00:18 AM

12-28-2018

Registered User

Hi dkmartin,

From the way you describe the layout, I'm going to assume that you're running something like SVC for the management of the LUN's. Are the AIX environment LPAR's or are they standalone machines, or something else of course.

Managing LUN's accross six individual SAN devices is very costly in resource, along with the planning headache when it comes to new system builds - well inless you have plenty of disk. I currently have two devices - a 1.5Pb VMax and a 250Gb VNX and that provides enough confusion.

Where ver possible our approach is to go for a single LUN, but we do have quite a number of systems with large numbers of luns (some are in excess of 200) on AIX, Solaris and RHEL. We do have some very old versions on VMware, but they are slowly being decommissioned.

So in reality I would if time permits look at load and I/O on a system by system basis, where the results indicate there would be a benefit - replicate the existing model. If the results show it would be OK, go for the single LUN, if you're using Metro or Global mirror you may have to delve a bit deeper and look at inter system bandwidth.

Regards

Gull04

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LEARN ABOUT SUNOS

hpfc

hpfc(7D)							      Devices								  hpfc(7D)

NAME

       hpfc - Agilent fibre channel host bus adapter

SYNOPSIS

       PCI   pci103c

DESCRIPTION

       The hpfc fibre channel host bus adapter is a SCSA compliant nexus driver that supports all Agilent fibre channel host bus adapters, includ-
       ing the HHBA5100x, HHBA5101x, and HHBA5121x models. Agilent host bus adapters support the fibre channel protocol on private  fibre  channel
       arbitrated loops and fabrics. The driver supports up to ten host bus adapters, with a maximum of 125 fibre channel devices on each host bus
       adapter. The hpfc driver supports a maximum of 256 LUNs per target.

       The hpfc driver does not support the BIOS Int 13 feature, which enables the booting of an operating system. As a  result,  you  should  not
       install an operating system on devices attached to the hpfc driver.

CONFIGURATION

       The hpfc driver attempts to configure itself using the information in the /kernel/drv/hpfc.conf configuration file.

       By default, the driver supports only LUN 0 for each target device. To add multiple LUN support, modify the /kernel/drv/sd.conf file.

       Before  upgrading the hpfc driver, backup the sd.conf file to save customized LUN settings and then use pkgrm(1M) to remove the old version
       of the driver.

       The host bus adapter port is initialized to FL_Port when connected to a fabric switch. To change it  to	F_Port,  add  the  init_as_nport=1
       entry to the hpfc.conf file and reboot the system.

       To  conserve system resources, at least one disk drive must be attached to the hpfc driver. If no devices are attached, the driver will not
       load.

FILES

       /kernel/drv/hpfc 	       32-bit ELF kernel module

       /kernel/drv/sparcv9/hpfc        64-bit ELF kernel module

       /kernel/drv/hpfc.conf	       Driver configuration file

       /kernel/drv/sd.conf	       SCSI disk configuration file

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

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

SEE ALSO

       luxadm(1M), pkgrm(1M), prtconf(1M), driver.conf(4), attributes(5), ses(7D), ssd(7D)

       ANSI X3.272-1996, Fibre Channel Arbitrated Loop (FC-AL),

       ANSI X3.269-1996, Fibre Channel Protocol for SCSI (FCP),

       ANSI X3.270-1996, SCSI-3 Architecture Model (SAM),

       Fibre Channel Private Loop SCSI Direct Attach (FC-PLDA)

SunOS 5.10							    10 Oct 2000 							  hpfc(7D)