AIX

Hello All.
Is it possible?

No, not in software, only with the right hardware.

Hello Dukessd,
Could you please help me with official documentation about it? Where i can find it?

I assume you mean scsi raid5 because fibre chanel or SSA disks are different.

As scsi raid5 in AIX software is not possible, there is no documentation.

For the information about the scsi hardware raid5 adapters try a google for:
site:ibm.com aix raid adapter systemp
site:ibm.com aix raid adapter systemp - Google Search
to get you started.

Systems up to power5 need a pci adapter for scsi raid5.
Some of these systems, like the 7026 H80 / M80 - p660 will also need an external storage enclosure because you can only fit 2 disks in the system unit.

Most power5 and power6 systems can accept a scsi raid enablement card that enhances the onboard scsi adapter to allow raid5 use of internal or external disks.

What is your systems machine type and model? Then we can look up the adapters and disk configurations that your system can use.

lsconf | head
will show your machine type and model

lsdev -Cc disk
and
lsdev -Cs scsi
will show the scsi disks and controllers in your system

There is result of execution:
# lsconf|head
System Model: IBM,9110-51A
Machine Serial Number: 06448CF
Processor Type: PowerPC_POWER5
Number Of Processors: 4
Processor Clock Speed: 1648 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 1 06-448CF
Memory Size: 16016 MB
Good Memory Size: 16016 MB
/usr/sbin/lsconf: There is no process to read data written to a pipe.
# lsdev -Cc disk
hdisk0 Available 06-08-01-3,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 06-08-01-4,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 06-08-01-5,0 16 Bit LVD SCSI Disk Drive
hdisk3 Available 06-08-01-8,0 16 Bit LVD SCSI Disk Drive
hdisk4 Available 06-08-00-0,0 Other SCSI Disk Drive
hdisk5 Available 06-08-00-1,0 Other SCSI Disk Drive
hdisk6 Available 06-08-00-2,0 Other SCSI Disk Drive
hdisk7 Available 06-08-00-3,0 Other SCSI Disk Drive
# lsdev -Cs scsi
hdisk0 Available 06-08-01-3,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 06-08-01-4,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 06-08-01-5,0 16 Bit LVD SCSI Disk Drive
hdisk3 Available 06-08-01-8,0 16 Bit LVD SCSI Disk Drive
hdisk4 Available 06-08-00-0,0 Other SCSI Disk Drive
hdisk5 Available 06-08-00-1,0 Other SCSI Disk Drive
hdisk6 Available 06-08-00-2,0 Other SCSI Disk Drive
hdisk7 Available 06-08-00-3,0 Other SCSI Disk Drive
safte0 Available 06-08-00-6,0 SCSI Accessed Fault-Tolerant Enclosure Device
ses0 Available 06-08-01-15,0 SCSI Enclosure Services Device

Based on this IBM page:
IBM Techdocs FAQ: Can external SCSI disk drives be configured as part of the same RAID array as the internal SCSI disk drives on the System p models 51A, 52A, and 55A?

I think you need "fc=1908, Dual Channel SCSI RAID Enablement Daughter Card" for your 9110-51A

There may be other options.

Call IBM or a reseller and ask if this is correct and how much they are.