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Full Discussion: EMC, PowerPath and issue on using LUN
Operating Systems Linux EMC, PowerPath and issue on using LUN Post 302581943 by Zarnick on Wednesday 14th of December 2011 12:37:03 PM
Old 12-14-2011
EMC, PowerPath and issue on using LUN
Hello guys, I'm going crazy over here with a problem with a LUN created on a EMC CX3.
I did sucessfully managed to create the LUN on the Storage (the LUN is named DBLNX25EC_TST), after doing the following process:
Code:
echo "1" > /sys/class/fc_host/host<n>/issue_lip
and
echo "- - -" > /sys/class/scsi_host/host<n>/scan
then
powermt config
powermt save

I've managed to see the mentioned LUN as device emcpowerf
Code:
powermt display dev=all
...
Pseudo name=emcpowerf
CLARiiON ID=CK200074600446 [DBLNX25EC]
Logical device ID=6006016081B11E00F0DD1B23CD24E111 [DBLNX25EC_TST]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0;
Owner: default=SP B, current=SP B       Array failover mode: 1
==============================================================================
--------------- Host ---------------   - Stor -   -- I/O Path --  -- Stats ---
###  HW Path               I/O Paths    Interf.   Mode    State   Q-IOs Errors
==============================================================================
   1 qla2xxx                  sdb       SP A2     active  alive       0      0
   1 qla2xxx                  sdh       SP B3     active  alive       0      0
   2 qla2xxx                  sdn       SP B2     active  alive       0      0
   2 qla2xxx                  sdt       SP A3     active  alive       0      0

However, when I try to create a partition, here's the fdisk output:
Code:
fdisk /dev/emcpowerf

Unable to read /dev/emcpowerf

What am I missing?

Thanks in advance.
 

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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)
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