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I have OpenFiler storage server.

Without installing Windows and MSM, I want to create raid10 array from disks 2 to 21.

I have already successfully installed MegaCli to OpenFiler but I'm stuck in figuring out the correct command line for creating a raid 10 array.

The documentations says that the syntax for creating a raid 10 is:

MegaCli -CfgSpanAdd -r10 -Array0[E:S,E:S] -Array1[E:S,E:S] -aN

My enclosure ID is 25, so:

[root@linux-h5ut ~]# MegaCli -CfgSpanAdd -r10 -Array0[E25:S02,E25:S21] -Array1[E25:S02,E25:S21] WB Cached NoCachedBadBBU -a0
Invalid input at or near token E

I have googled high and low but there doesn't seem to be any example doing raid10 with megaraid (only the syntax).

Can anyone explain what is wrong?

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3 Answers 3

You didn't understand the man page. E25:S02 - its like variable which should have int values. All you need:

1.Get adapter ID (it's 0 in my example):

root@sto# megacli Adpallinfo -aall | grep '^Adapter'                                                    
Adapter #0

2. Get E and S values:

megacli -PDlist -aall | grep -e '^Enclosure Device ID:' -e '^Slot Number:'

You will get something like this:

Enclosure Device ID: 20
Slot Number: 0
Enclosure Device ID: 20
Slot Number: 1
Enclosure Device ID: 20
Slot Number: 2
Enclosure Device ID: 20
Slot Number: 3
Enclosure Device ID: 20
Slot Number: 4

This is you E and S numbers, i.g. 20:0,20:1,20:2,20:3,20:4 So the command to create for example RAID6, will be:

megacli -CfgLdAdd -r6 [20:0,20:1,20:2,20:3,20:4] -a0
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I used that (couple months ago to create raid 50):

megacli -CfgSpanAdd -r50 -Array0[252:2,252:3,252:4] Array1[252:5,252:6,252:7] WB RA Direct CachedBadBBU -a0

IBM x3560 and:

Product Name    : ServeRAID M5015 SAS/SATA Controller
Serial No       : SV14018726
FW Package Build: 12.13.0-0179
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Seems that I should not use E and S letters.

At first I understood correctly and tried it letterlessly but also got invalid token errors because I was using -aALL instead of -a0 ("If you have only one controller it’s safe to use ALL instead of a specific ID"), and then read from this site that "E is the enclosure device ID in which the drive resides and S the slot number" and hence concluded that I should replace E and S with actual IDs. :(

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But nevertheless, without E and S letters, megaraid responds with "OSSpecificInitialize: Failed to load libsysfs.so.2.0.2 Please ensure that libsfs is present in the system. The dependent library libsysfs.so.2.0.1 not available. Please contact LSI for distribution of the package Mix of configured and unconfigured drives are not possible.". I guess I have to get this library somehow. –  Henno Jul 1 '13 at 14:01
    
I had to put /root/opt/lsi/3rdpartylibs/x86_64/libsysfs.so.2.0.2 to the same directory I had put MegaCli (/usr/local/bin) –  Henno Jul 1 '13 at 14:08
    
Are you sure? Correct it's megacli -CfgSpanAdd for raids 10,50,60 and others with arrays –  abkrim Jun 4 at 18:10

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