Help with LVM

UNIX AIX
1

Sorry for the noob question; my experience is with Solaris.

Am I reading this right? Are these disks completely unused? Not possibly raw disks for informix or something?

hdisk5 0K-08-ff-0,1 Optimal RAID 10 Array 285.7GB
pdisk20 0K-08-00-2,0 Active Array Member 142.8GB
pdisk21 0K-08-00-3,0 Active Array Member 142.8GB
pdisk27 0K-08-00-10,0 Active Array Member 142.8GB
pdisk28 0K-08-00-11,0 Active Array Member 142.8GB

[root@hostname /]# lspv -l hdisk5
0516-320 : Physical volume 00c532da401f3c830000000000000000 is not assigned to
a volume group.

---------------------------------------------------------------------------------------------------------------------------------
and these pdisks? unused?

# sisraidmgr -L -j1 -l 'sisioa2'
------------------------------------------------------------------------
Name Location State Description Size
------------------------------------------------------------------------
sisioa2 0K-08 Available PCI-X Dual Channel U320 SCSI RAID Adapter

pdisk32 0K-08-00-4,0 Active Array Candidate 142.8GB
pdisk33 0K-08-00-5,0 Active Array Candidate 142.8GB
pdisk35 0K-08-00-8,0 Active Array Candidate 142.8GB
pdisk36 0K-08-00-9,0 Active Array Candidate 142.8GB
pdisk37 0K-08-00-10,0 Active Array Candidate 142.8GB
pdisk38 0K-08-00-11,0 Active Array Candidate 142.8GB
pdisk39 0K-08-00-12,0 Active Array Candidate 142.8GB
pdisk40 0K-08-00-13,0 Active Array Candidate 142.8GB

Can pdisks be used for data or do they have to be assigned to hdisks first?

Thanks

2

I'd say pdisk20, 21, 27, 28 make up hdisk5, raid 10, and the other disks are free.
smitty pdam
and have a poke about.
pdisks cannot be used, they must become a hdisk, either on their own or as part of an array.

3

Thanks Duke!

Can a pv be used without being in a vg? Like even though this array is defined it can't be used? The same 4 disks from before:

hdisk5 0K-08-ff-0,1 Optimal RAID 10 Array 285.7GB
pdisk20 0K-08-00-2,0 Active Array Member 142.8GB
pdisk21 0K-08-00-3,0 Active Array Member 142.8GB
pdisk27 0K-08-00-10,0 Active Array Member 142.8GB
pdisk28 0K-08-00-11,0 Active Array Member 142.8GB

[root@hostname /]# lspv -l hdisk5
0516-320 : Physical volume 00c532da401f3c830000000000000000 is not assigned to
a volume group.