[FATAL] [INS-30508] Invalid ASM disks.

Oracle OTN https://forums.oracle.com/thread/2581967

1-Email to EMC team
We are facing issue with RAC Installation with created san partitions as asm is not able to understand emc power path partitons because it take slice 0 for it’s all paths

As per standard recommendation of Oracle ASM Filesystem We had configured partitions on slice 4 for store the data so we require to be show up the s4 partitions on emcpowerpath output

You can check output of below cmd

powermt display dev=all

existing emc power path partitions taking slice 0 by default for all of those partitions

3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016041E06BDEd3s0 SP A4 active alive 0 0
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016941E06BDEd3s0 SP B5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016141E06BDEd3s0 SP A5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016841E06BDEd3s0 SP B4 active alive 0 0

We want the output like below for use the slice 4 for all the emc power path partitions

3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016041E06BDEd3s4 SP A4 active alive 0 0
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016941E06BDEd3s4 SP B5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016141E06BDEd3s4 SP A5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016841E06BDEd3s4 SP B4 active alive 0 0

2-Email to EMC team

Existing use slice s0 by default:-

#powermt display dev=emcpower2a
Pseudo name=emcpower2a
CLARiiON ID=CK200072800273 [ESRDBTX_SG01] Logical device ID=6006016079701D00EAAD8BE1A010E311 [LUN 21] state=alive; policy=CLAROpt; priority=0; queued-IOs=0;
Owner: default=SP B, current=SP B Array failover mode: 1
==============================================================================
————— Host ————— – Stor – — I/O Path — — Stats —
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016041E06BDEd1s0 SP A4 active alive 0 0
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016941E06BDEd1s0 SP B5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016141E06BDEd1s0 SP A5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016841E06BDEd1s0 SP B4 active alive 0 0

We require to be use slice s4 by default

#powermt display dev=emcpower2a
Pseudo name=emcpower2a
CLARiiON ID=CK200072800273 [ESRDBTX_SG01] Logical device ID=6006016079701D00EAAD8BE1A010E311 [LUN 21] state=alive; policy=CLAROpt; priority=0; queued-IOs=0;
Owner: default=SP B, current=SP B Array failover mode: 1
==============================================================================
————— Host ————— – Stor – — I/O Path — — Stats —
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016041E06BDEd1s4 SP A4 active alive 0 0
3077 ssm@0,0/pci@19,700000/SUNW,qlc@1/fp@0,0 c5t5006016941E06BDEd1s4 SP B5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016141E06BDEd1s4 SP A5 active alive 0 0
3076 ssm@0,0/pci@19,600000/SUNW,qlc@1/fp@0,0 c8t5006016841E06BDEd1s4 SP B4 active alive 0 0

We also required same conf for emcpower6a and emcpower8a

Then We will try to configure clusterware using those three devices emcpower2a, emcpower6a and emcpower8a

if everything are working fine then we also need your further support for same conf on rest of the emcpower partitons as below

emcpower3
emcpower4
emcpower5
emcpower7
emcpower9

Let me know if any more help require

Reply from EMC team
http://www.the-playground.de/joomla/index.php?option=com_content&view=article&id=301%20olaris-intel-and-asm-disks&catid=20:general&Itemid=43

suggested solution not more work from us as we want to be used powerpath partiton instead of local disk for take the advantages of san controller failure

we try R&D again and again
In Sparc architecture, the solaris disk is subdivided into 8 slices.

Below is the common configuration of these eight slices:
slice 0: Holds files and directories that make up the operating
system.*
slice 1: Swap, Provides virtual memory, or swap space.
slice 2: Refers to the entire disk, by convention. The size of this
slice should not be changed.**
slice 3: /export, Holds alternative versions of the operating system.
slice 4: /export/swap. Provides virtual memory space for client
systems. ***
slice 5: /opt. Holds application software added to a system.
slice 6: /usr. Holds operating system commands–also known as
executables– designed to be run by users.
slice 7: /home. Holds files created by users.

* Cannot be used as ASM disk. Using this slice causes disk corruption
and may render the disk as unusable.
** Should not be used as ASM Disk, as slice refers to the entire disk
(Including partition tables).
*** Is the recommended slice to be used for ASM disk.

We came to know that for refer the slice 4 we have to use e

emcpower2e
emcpower3e
emcpower4e
emcpower5e
emcpower6e
emcpower7e
emcpower8e
emcpower9e

as per asm recommendation we had used slice 4 the same
so we had detail diagnose and came to know that we have to use

[/dev/rdsk/emcpower2e, /dev/rdsk/emcpower6e, /dev/rdsk/emcpower8e]

here e refer the slice 4
we had use below changes in silent file and it’s working fine

oracle.install.asm.diskGroup.disks=/dev/rdsk/emcpower2e,/dev/rdsk/emcpower6e,/dev/rdsk/emcpower8e

sample logs

INFO: Starting Output Reader Threads for process /tmp/OraInstall2013-09-17_05-03-21PM/ext/bin/kfod
INFO: Parsing 2560 CANDIDATE /dev/rdsk/emcpower2e oracle oinstall
INFO: The process /tmp/OraInstall2013-09-17_05-03-21PM/ext/bin/kfod exited with code 0
INFO: Waiting for output processor threads to exit.
INFO: Parsing 2560 CANDIDATE /dev/rdsk/emcpower6e oracle oinstall
INFO: Parsing 2560 CANDIDATE /dev/rdsk/emcpower8e oracle oinstall

Clusterware successfully detect the disk 

We are now in the stage for installing clusterware………
🙂

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