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Oracle RAC DB reports "inconsistent sector size" when connected with E-series LUNS

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Applies to

  • E-Series EF570
  • Santricity OS 11.70.1R1
  • Oracle 12.1

Issue

 
  • Adding a node to Oracle RAC DB reports disk xxx has inconsistent sector size (expected 4096, actual 512) with disk group xxx
  • Luns are not discoverable on host but post multimapping, while adding 3rd node on oracle its giving, sector size mismatch error
grid@host:/dev/ASMDISKS$ kfed read  /dev/ASMDISKS/DISK_S1_57 | egrep 'name|size|type'

kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfdhdb.dskname:         DISK_0114 ; 0x028: length=15
kfdhdb.grpname:              DISK ; 0x048: length=10
kfdhdb.fgname:                 DATA_F01 ; 0x068: length=8
kfdhdb.secsize:                     512 ; 0x0b8: 0x0200
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  4194304 ; 0x0bc: 0x00400000
kfdhdb.dsksize:                  262068 ; 0x0c4: 0x0003ffb4


grid@host:/dev/ASMDISKS$ kfed read  /dev/ASMDISKS/DISK_S2_56 | egrep 'name|size|type'
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfdhdb.dskname:         DISK_0115 ; 0x028: length=15
kfdhdb.grpname:              DISK ; 0x048: length=10
kfdhdb.fgname:                 DATA_F02 ; 0x068: length=8
kfdhdb.secsize:                    4096 ; 0x0b8: 0x1000
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  4194304 ; 0x0bc: 0x00400000
kfdhdb.dsksize:                  262068 ; 0x0c4: 0x0003ffb4

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