Sun Fire 280R Server
 
Sun Storage 9970 System
 
Sun Storage A5200 Array
 
Sun Storage 9910 System
 
Sun Storage 9985 System
 
Sun Storage 3910 Array
 

GCS>Sun Microsystems>Storage - Disk>Modular Disk - Other
 

The Sun Fire V880, V480 and the 280R systems have internal fiber drives. StorEdge Traffic Manager Software (STMS) is also referred to as MPxIO. STMS, version 1.x, does not support boot drives, so although the features of STMS may be used on other controllers on the same host, STMS must be disabled for the controller being used to communicate to the boot disk(s).

Note: SAN 4.3 introduced STMS boot capability and it is thus no longer mandatory to exclude the internal fiber channel drives from STMS. SUNWmdiu is now available which enables STMS boot. If you still want to exclude any controllers from STMS, the following instructions detail the process.

1. To enable STMS globally on all multi-pathed devices and host bus adapters (HBA)

Solaris 9 or below:  by editing the /kernel/drv/scsi_vhci.conf file.

Solaris 10: by editing the /kernel/drv/fp.conf file

                   or using stmsboot -e ( recommended)

The default value for mpxio-disable in the /kernel/drv/scsi_vhci.conf or fp.conf files is

     mpxio-disable="yes";

To enable STMS, change this variable to "no"

     mpxio-disable="no";

2. To disable STMS on selected HBA's,

Solaris 9 or below

edit the file /kernel/drv/qlc.conf and add a line for each port on each HBA:

You can find the path for the boot device by using the /usr/sbin/format command

     # format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c1t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w2100002037bd3f11,0
1. c1t1d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w2100002037bd39da,0
2. c1t10d0 <SUN36G cyl 24620 alt 2 hd 27 sec 107>
/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w2100002037f8c7fd,0
3. c2t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/pci@9,600000/pci@2/SUNW,qlc@4/fp@0,0/ssd@w2200002037bd3f11,0
4. c2t1d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/pci@9,600000/pci@2/SUNW,qlc@4/fp@0,0/ssd@w2200002037bd39da,0
5. c2t10d0 <SUN36G cyl 24620 alt 2 hd 27 sec 107>
/pci@9,600000/pci@2/SUNW,qlc@4/fp@0,0/ssd@w2200002037f8c7fd,0

The above listing is from a Sun Fire V880 with 3 internal drives and 2 paths to each drive.

To disable STMS on both paths, make the following entries in the /kernel/drv/qlc.conf file.

     name="qlc" parent="/pci@8,600000"       unit-address="2" mpxio-disable="yes";
name="qlc" parent="/pci@9,600000/pci@2" unit-address="4" mpxio-disable="yes";

For Sun Fire SFx800 machines, the device path will be similar to the following,

     name="qlc" parent="
/ssm@0,0
/pci@1e,600000/pci@1" unit-address="4" mpxio-disable="yes";

Any paths not listed in this file will have STMS enabled on them.

Parent and unit-address can be found from the output of the format command. For example:

     c2t10d0 <SUN36G cyl 24620 alt 2 hd 27 sec 107>
/pci@9,600000/pci@2/SUNW,qlc@4/fp@0,0/ssd@w2200002037f8c7fd,0

Here, PARENT is /pci@9,600000/pci@x and UNIT-ADDRESS is 4.

or onboard controller the parent is /pci@8,600000 .

Solaris[TM] 10

- Edit the file /kernel/drv/fp.conf and add a line for each port on each HBA:

      name="fp" parent="parent name" port=port-number mpxio-disable="no/yes"

           where parent name  is the Qlogic device path

 ie:  /pci@9,600000/pci@2/SUNW,qlc@4

           and port-number  is the port number of the HBA

- Then do stmsboot -u to update vfstab and dump config

For full explanation  see the documentation under the link: Click Here: http://docs.sun.com/source/819-0139/  

3. Reboot the machine for STMS to take affect.

Ramachandran.Kalyanasundaram@sun.com

Updated by: Colin Seymour <colin.seymour@sun.com>

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