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EMC Gatekeeper LUNs not Collapsing Automatically Under MPXIO (Doc ID 2467409.1)

Last updated on MARCH 04, 2019

Applies to:

Solaris Operating System - Version 11.3 and later
Information in this document applies to any platform.

Symptoms

EMC Gatekeeper Luns won't automatically collapse under MPXIO.

Regular luns:
      24. c0t60000970000296801177533030303333d0 <EMC-SYMMETRIX-5977 cyl 65533 alt 2 hd 15 sec 1066>  /sv
          /scsi_vhci/ssd@g60000970000296801177533030303333
      25. c0t60000970000296801177533030303234d0 <EMC-SYMMETRIX-5977 cyl 54612 alt 2 hd 15 sec 256>  root_a
          /scsi_vhci/ssd@g60000970000296801177533030303234
      26. c0t60000970000296801176533030303333d0 <EMC-SYMMETRIX-5977 cyl 65533 alt 2 hd 15 sec 1066>
          /scsi_vhci/ssd@g60000970000296801176533030303333
      27. c0t60000970000296801176533030303234d0 <EMC-SYMMETRIX-5977 cyl 54612 alt 2 hd 15 sec 256>  root_c
          /scsi_vhci/ssd@g60000970000296801176533030303234

Gatekeeper luns:
      35. c5t5000097558126058d3 <EMC-SYMMETRIX-5977 cyl 4 alt 2 hd 15 sec 256>  gkeeper1           
          /pci@300/pci@2/pci@0/pci@13/SUNW,emlxs@0/fp@0,0/ssd@w5000097558126058,3
      36. c5t5000097558126004d3 <EMC-SYMMETRIX-5977 cyl 4 alt 2 hd 15 sec 256>  gkeeper1           
          /pci@300/pci@2/pci@0/pci@13/SUNW,emlxs@0/fp@0,0/ssd@w5000097558126004,3
      37. c5t5000097558126004d6 <EMC-SYMMETRIX-5977 cyl 4 alt 2 hd 15 sec 256>  gkeeper2           
          /pci@300/pci@2/pci@0/pci@13/SUNW,emlxs@0/fp@0,0/ssd@w5000097558126004,6
      38. c5t5000097558126404d6 <EMC-SYMMETRIX-5977 cyl 1 alt 2 hd 15 sec 256>  gkeeper1           
          /pci@300/pci@2/pci@0/pci@13/SUNW,emlxs@0/fp@0,0/ssd@w5000097558126404,6

Mode Sense Data of gatekeeper lun:
SCMD_INQUIRY data: 149
0x00: 00 00 05 32 90 09 10 0a 45 4d 43 20 20 20 20 20 :: ...2....EMC
0x10: 53 59 4d 4d 45 54 52 49 58 20 20 20 20 20 20 20 :: SYMMETRIX
0x20: 35 39 37 37 37 36 30 34 32 30 30 30 40 00 00 08 :: 597776042000@... <<<<<<<<<<< 5977

Mode Sense Data of Regular lun:
SCMD_INQUIRY data: 149
0x00: 00 00 05 32 90 09 10 0a 45 4d 43 20 20 20 20 20 :: ...2....EMC
0x10: 53 59 4d 4d 45 54 52 49 58 20 20 20 20 20 20 20 :: SYMMETRIX
0x20: 35 39 37 37 37 36 30 33 33 30 30 30 44 00 00 08 :: 597776033000D... <<<<<<<<<<< 5977

From the GK lun modesense output,

SCMD_INQUIRY data: 149
0x00: 00 00 05 32 90 09 10 0a 45 4d 43 20 20 20 20 20 :: ...2....EMC
0x10: 53 59 4d 4d 45 54 52 49 58 20 20 20 20 20 20 20 :: SYMMETRIX
0x20: 35 39 37 37 37 36 30 34 32 30 30 30 40 00 00 08 :: 597776042000@... <<<<<<<<<<< 5977

and the RG lun modesense output.

SCMD_INQUIRY data: 149
0x00: 00 00 05 32 90 09 10 0a 45 4d 43 20 20 20 20 20 :: ...2....EMC
0x10: 53 59 4d 4d 45 54 52 49 58 20 20 20 20 20 20 20 :: SYMMETRIX
0x20: 35 39 37 37 37 36 30 33 33 30 30 30 44 00 00 08 :: 597776033000D... <<<<<<<<<<< 5977

Their revision are both 5977. According to the Bug 19303659, Solaris Multipathing should enumerate GK LUs which support multipathing, fix is in SRU 11.3.8.7.0 if revision is higher than 5874.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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