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Problems with Solaris 10 x86 MPXIO and IBM DS4800

807567Sep 27 2006 — edited Jul 1 2009
I have a X4100 running Solaris 10 x86 which sees two LUNs from a DS4800 storage array. I have added the vendor/product names to scsi_vhci.conf and mpxio detects it prefectly fine. Format show just a single device and luxadm shows all paths.

The problem is that luxadm shows all paths (there are four of them; two hba in the server and two controllers in the storage array) as ONLINE/PRIMARY. (see below)

However the DS4800 only allows one of the controllers to own the LUN at the same time, thus I'd like to see two of the paths as STANDBY/SECONDARY and the two others as ONLINE/PRIMARY. I have disabled load-balancing for now and I can access the disks perfectly fine (except for the DS4800 complaining about the wrong controller being used).

http://partneradvantage.sun.com/protected/solaris10/adoptionkit/tech/devices.html claims that "IBM 1815 FAStT" is supported, but www-03.ibm.com/servers/storage/disk/ds4000/pdf/interop-matrix.pdf says otherwise (DMP being the only MP supported by default).

Is there anyway of manually overriding the class/states? I know which paths should be the primary ones (in the example below 202500a0b8119450,0 and 201500a0b8119450,0), the other two paths are the non-preffered controller and those should just be used if the other two paths are failed.

Any hints on how to proceed with this? I'd really like to use mpxio and zfs for this application rather than getting yet another license for storage foundation and vxfs. Considering that things are so close to working I hope that there is some trick to apply for closing the final gaps.

bash-3.00# luxadm display /dev/rdsk/c6t600A0B800011F120000062EE4518B739d0s2
DEVICE PROPERTIES for disk: /dev/rdsk/c6t600A0B800011F120000062EE4518B739d0s2
Vendor: IBM
Product ID: 1815 FAStT
Revision: 0914
Serial Num: 1T62191492
Unformatted capacity: 102400.000 MBytes
Write Cache: Enabled
Read Cache: Enabled
Minimum prefetch: 0x100
Maximum prefetch: 0x100
Device Type: Disk device
Path(s):

/dev/rdsk/c6t600A0B800011F120000062EE4518B739d0s2
/devices/scsi_vhci/disk@g600a0b800011f120000062ee4518b739:c,raw
Controller /dev/cfg/c4
Device Address 202400a0b8119450,0
Host controller port WWN 210000e08b90f791
Class primary
State ONLINE
Controller /dev/cfg/c4
Device Address 202500a0b8119450,0
Host controller port WWN 210000e08b90f791
Class primary
State ONLINE
Controller /dev/cfg/c5
Device Address 201400a0b8119450,0
Host controller port WWN 210000e08b90b08f
Class primary
State ONLINE
Controller /dev/cfg/c5
Device Address 201500a0b8119450,0
Host controller port WWN 210000e08b90b08f
Class primary
State ONLINE

bash-3.00#
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Locked on Jul 29 2009
Added on Sep 27 2006
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