I am having a problem configuring a lun (raid-6) from EMC clariion under mpxio.
the raid-6 luns have a different id than raid5 (DGC VRAID), so I
had to add the following to scsi_vhci.conf:
device-type-scsi-options-list =
"DGC VRAID", "symmetric-option";
symmetric-option = 0x1000000;
After that I get an mpxio device, however it thinks all paths are
active (symmetric):
# mpathadm show lu /dev/rdsk/c4t6006016076011F00A83040728E6EDF11d0s2
Logical Unit: /dev/rdsk/c4t6006016076011F00A83040728E6EDF11d0s2
mpath-support: libmpscsi_vhci.so
Vendor: DGC
Product: VRAID
Revision: 0326
Name Type: unknown type
Name: 6006016076011f00a83040728e6edf11
Asymmetric: no
Current Load Balance: round-robin
Logical Unit Group ID: NA
Auto Failback: on
Auto Probing: NA
Paths:
Initiator Port Name: 210000e08b8317d4
Target Port Name: 5006016141e0b790
Override Path: NA
Path State: OK
Disabled: no
Initiator Port Name: 210000e08b8317d4
Target Port Name: 5006016941e0b790
Override Path: NA
Path State: OK
Disabled: no
Initiator Port Name: 210000e08b831dd3
Target Port Name: 5006016041e0b790
Override Path: NA
Path State: OK
Disabled: no
Initiator Port Name: 210000e08b831dd3
Target Port Name: 5006016841e0b790
Override Path: NA
Path State: OK
Disabled: no
Target Ports:
Name: 5006016141e0b790
Relative ID: 0
Name: 5006016941e0b790
Relative ID: 0
Name: 5006016041e0b790
Relative ID: 0
Name: 5006016841e0b790
Relative ID: 0
#
Looking on EMC powerlink, I found documents that say that MPxIO does
not support raid-6 on clariion in failover mode 1, and the LUN needs
to be in failover mode 4 (ALUA). This seems like a hack. Any ideas?
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