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Full Discussion: AIX hard disk failure
Operating Systems AIX AIX hard disk failure Post 303031744 by Phat on Tuesday 5th of March 2019 07:03:17 AM
Old 03-05-2019
Hi Bakunin,

Quote:
]I am a bit confused: is this a disk in your AIX system as you said in #1 or a disk in a separate RAID as you said in #2? Usually, if you have an external raid, by formatting it forms one virtual disk (the whole RAID set) which you then in turn can see in AIX as a single hdisk device. Please explain your hardware setup (what is connected to what, etc.) a bit more detailed.
--> My hardware setup is that I have a RAID5 disk hdisk5 (inside it are the pdiskx).
Code:
hdisk0    04-08-ff-0,0  Optimal     RAID 10 Array    142.8GB
 pdisk0   04-08-00-3,0  Active      Array Member     142.8GB
 pdisk1   04-08-00-4,0  Active      Array Member     142.8GB

hdisk5    04-08-ff-0,1  Optimal     RAID 5 Array     714.3GB
 pdisk2   04-08-00-5,0  Active      Array Member     142.8GB
 pdisk8   04-08-00-8,0  Active      Array Member     142.8GB
 pdisk4   04-08-01-3,0  Active      Array Member     142.8GB
 pdisk3   04-08-01-5,0  Active      Array Member     142.8GB
 pdisk7   04-08-01-8,0  Active      Array Member     142.8GB
 pdisk5   04-08-01-4,0  Active      Array Member     142.8GB

My volume group
Code:
xxx@/#lsvg -p YYYY
SSAMvg:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk5            active            532         45          00..00..00..00..45

My raid configuration
Code:
0940-038 scsi2: Open not attempted. Device not Available.
0940-038 scsi3: Open not attempted. Device not Available.
------------------------------------------------------------------------
Name      Location      State       Description        Size
------------------------------------------------------------------------
sisioa0   04-08         Available   PCI-X Dual Channel U320 SCSI RAID Adapter
 scsi0    04-08-00-07,0 NoLink      No remote adapter target
 scsi1    04-08-01-07,0 NoLink      No remote adapter target

hdisk0    04-08-ff-0,0  Optimal     RAID 10 Array    142.8GB
 pdisk0   04-08-00-3,0  Active      Array Member     142.8GB
 pdisk1   04-08-00-4,0  Active      Array Member     142.8GB

hdisk5    04-08-ff-0,1  Optimal     RAID 5 Array     714.3GB
 pdisk2   04-08-00-5,0  Active      Array Member     142.8GB
 pdisk8   04-08-00-8,0  Active      Array Member     142.8GB
 pdisk4   04-08-01-3,0  Active      Array Member     142.8GB
 pdisk3   04-08-01-5,0  Active      Array Member     142.8GB
 pdisk7   04-08-01-8,0  Active      Array Member     142.8GB
 pdisk5   04-08-01-4,0  Active      Array Member     142.8GB

We have pulled out the failure disk pdisk5 and added a new hard disk.
Anything is fine until trying to add the new disk to the RAID and encountered the issue below:

Code:
hdisk5 changed. hdisk 5 has been expanded. However, hdisk5 needs to be unconfigured and reconfigured prior to the system being able to use the increased capacity.
Note: the volume group, logical volumes, and file systems associated with hdisk5 might need to be changed in order to make use of the increased capacity.

After some checks, I can see the hdisk5 becomes bigger with new size but the VG still in the old size.
Last edited by bakunin; 03-05-2019 at 10:21 AM..
 

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