remove PVID

[gatetec]

hdisk95 00c3403a72bdc68a None

# extendvg prod7vg hdisk95
0516-029 extendvg: The Physical Volume is a member of a currently varied on Volume Group and this cannot be overidden.
0516-1397 extendvg: The physical volume hdisk95, will not be added to the volume group.
0516-792 extendvg: Unable to extend volume group.

How do you remove PVID so that I can add hdisk95 to the vg?

thx much

 

[jping45]

you can use lquerypv -ch /dev/hdisk# to clear out the PVID info

 

[khalidaaa]

or if i'm sure that these is nothing on that disk then i do this:

extendvg -f prod7vg hdisk95

Regards,
Khalid

 

[khalidaaa]

or you can do this before extending:

Adding a new drive to an existing volume group
Once the new drive has been configured, ensure that a proper PVID has been written to the drive by running: 

   chdev -l <hdisk#> -a pv=clear     chdev -l <hdisk#> -a pv=yes  
NOTE: On SSA drives, the first chdev command may be omitted. 

Add the drive to the volume group with: 

   extendvg VGname hdisk#  
You can also use the mkvg command to create a new volume group on the new drive. 

New logical volumes, paging spaces, file systems, or logical volume copies can be re-added with the mklv, mkps, crfs, mklvcopy, or mirrorvg commands, respectively, or by using SMIT.

http://unixarticles.com/articles/67/1/Removing-and-Replacing-a-Fixed-Disk-in-AIX

Regards,
Khalid

 

[gatetec]

I think something is holding hdisk95.
Any ideas, please?

# chdev -l hdisk95 -a pv=clear
Method error (/etc/methods/chgfcparray):
0514-062 Cannot perform the requested function because the specified device is busy.

# fuser /dev/hdisk95
/dev/hdisk95:

# lquerypv -ch /dev/hdisk95
00000000 C9C2D4C1 00000000 00000000 00000000 |................|
00000010 00000000 00000000 00000000 00000000 |................|
00000020 00000000 00000000 00000000 00000000 |................|
00000030 00000000 00000000 00000000 00000000 |................|
00000040 00000000 00000000 00000000 00000000 |................|
00000050 00000000 00000000 00000000 00000000 |................|
00000060 00000000 00000000 00000000 00000000 |................|
00000070 00000000 00000000 00000000 00000000 |................|
00000080 00C3403A 72BDC68A 00000000 00000000 |..@:r...........|
00000090 00000000 00000000 00000000 00000000 |................|
000000A0 00000000 00000000 00000000 00000000 |................|
000000B0 00000000 00000000 00000000 00000000 |................|
000000C0 00000000 00000000 00000000 00000000 |................|
000000D0 00000000 00000000 00000000 00000000 |................|
000000E0 00000000 00000000 00000000 00000000 |................|
000000F0 00000000 00000000 00000000 00000000 |................|

 

[khalidaaa]

Are you sure that this disk is free? Does it belong to another vg? are you using HACMP? is it a concurrent vg?

 

[gatetec]

I am using HACMP, but it doesn't show the vg name.
It just say 'none'. ???

hdisk95 00c3403a72bdc68a None

 

[khalidaaa]

I just found this while googling, I hope it is useful!

PVID trouble

To add a PVID to a disk, enter:
chdev -l vpathxx -a pv=yes

To clear all reservations from a previously used SAN disk:
chpv -C vpathxx

http://www.meilink.net/index.php?page=aixpage

I'm not sure if this is due to SAN reservation!

Regards,
Khalid

 

[p5wizard]

Better make sure that hdisk95 is not another path/name to a SAN LUN which is in use under another path/name.

What type of disk is hdisk95 anyway?

lscfg -l hdisk95



HTH,

p5wizard

 

[gatetec]

It is IBM FastT (DS4500).

lscfg -l hdisk95
hdisk95 U7879.001.DQDLTLR-P1-C4-T1-W200200A0B813A360-L5E000000000000
1742-900 (900) Disk Array Device

thx much

 

[p5wizard]

so

lscfg|grep hdisk

and see if there are other hdisk names with the same id W200200A0B813A360-L5E000000000000

Also for DS4k LUNs, you should be using RDAC driver, which hides this issue from you.


HTH,

p5wizard

 

[gatetec]

PDC # lscfg|grep W200200A0B813A360-L5E000000000000
+ hdisk95 U7879.001.DQDLTLR-P1-C4-T1-W200200A0B813A360-L5E000000000000
1742-900 (900) Disk Array Device

Only there is one, hdisk95 for the ID.

 

[p5wizard]

How about if you grep only for L5E000000000000

Chances are, the first part is the WWNN for the DS4k's controllers, and that would be different for each of the 2 paths.



HTH,

p5wizard

 

[gatetec]

lscfg |grep L5E000000000000
+ hdisk95 U7879.001.DQDLTLR-P1-C4-T1-W200200A0B813A360-L5E000000000000
1742-900 (900) Disk Array Device

It is still hdisk95.

thx much

 

[p5wizard]

show please:

lspv
lscfg|egrep "dac|dar|hdisk"
lsdev -C|egrep "dac|dar|hdisk"





HTH,

p5wizard