DISK and MPIO Post: 303033186

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Operating Systems AIX DISK and MPIO Post 303033186 by Phat on Monday 1st of April 2019 07:39:59 AM

04-01-2019

Registered User

Quote:

You need to use a driver that works (duh! ;-)) ).

Yes I know Smilie

but can we pickup whatever 1 disk and make it use AIX PCM or vice versa? Just want to know the possibility.

But I wonder why how they can have the 2 different drivers. I detect hdisk18 belongs to IBMSVC which is using AIX PCM whereas the others are using SDDPCM.

Code:

[root@server2] / > manage_disk_drivers -l
Device              Present Driver        Driver Options
2810XIV             AIX_AAPCM             AIX_AAPCM,AIX_non_MPIO
DS4100              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4200              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4300              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4500              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4700              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4800              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS3950              AIX_APPCM             AIX_APPCM
DS5020              AIX_APPCM             AIX_APPCM
DCS3700             AIX_APPCM             AIX_APPCM
DCS3860             AIX_APPCM             AIX_APPCM
DS5100/DS5300       AIX_APPCM             AIX_APPCM
DS3500              AIX_APPCM             AIX_APPCM
XIVCTRL             MPIO_XIVCTRL          MPIO_XIVCTRL,nonMPIO_XIVCTRL
2107DS8K            NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO
IBMFlash            NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO
IBMSVC              NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO

So what is IBMSVC? can we move disk from IBMSVC to 2017DS8K? I can see that all the LUNs comes from 1 source storage and visible to all 4 FCs adapters.

Phat

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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)