Originally posted by: Dave7

Hello,

Maybe you can help with the following problem.
I have this situation :

root@CLUSTER{NODE1}/> lsvg -m appvg
Logical Volume Copy 1 Copy 2 Copy 3
lv_smp mirrorpool_J mirrorpool_R
lv_sys mirrorpool_J mirrorpool_R
lv_ascs00 mirrorpool_J mirrorpool_R

If you look at any given LV, you can see AIX knows that these are actually two copies :

root@CLUSTER{NODE1}/> lslv -m lv_sys
lv_sys:/usr/sap/SMP/SYS_nfs
LP PP1 PV1 PP2 PV2 PP3 PV3
0001 0416 hdisk18 0416 hdisk26
0002 0416 hdisk19 0416 hdisk27
0003 0416 hdisk20 0416 hdisk28
0004 0417 hdisk18 0417 hdisk26
<...>

PP3 is empty, while PP1 and PP2 are filled.

So, my question is : can i get lsvg to display the mirrorpools as copy1 and copy2 instead of copy2 and copy3 ?
I could add some mirror copy but i'd like to do this without further mirror operations.

Thanks if you can help,
#AIX-Forum

Originally posted by: Dave7

Let me repaste with code tags the outputs of the commands so it makes more sense :

root@CLUSTER
{NODE1
}/> lsvg -m appvg Logical Volume    Copy 1     Copy 2          Copy 3 lv_smp                       mirrorpool_J    mirrorpool_R lv_sys                       mirrorpool_J    mirrorpool_R lv_ascs00                    mirrorpool_J    mirrorpool_R

If you look at any given LV, you can see AIX knows that these are actually the two first copies :

root@CLUSTER
{NODE1
}/> lslv -m lv_sys lv_sys:/usr/sap/SMP/SYS_nfs LP    PP1 PV1      PP2   PV2       PP3 PV3 0001  0416   hdisk18  0416  hdisk26 0002  0416   hdisk19  0416  hdisk27 0003  0416   hdisk20  0416  hdisk28 0004  0417   hdisk18  0417  hdisk26

I want to have :

root@CLUSTER
{NODE1
}/> lsvg -m appvg Logical Volume    Copy 1          Copy 2          Copy 3 lv_smp            mirrorpool_J    mirrorpool_R lv_sys            mirrorpool_J    mirrorpool_R lv_ascs00         mirrorpool_J    mirrorpool_R

#AIX-Forum

Originally posted by: SystemAdmin

Hi Dave,

all you need is love migrate your dava from copy3 to copy1 (of course there must be enough free space on copy1 to store data). man migratepv, -l to migrate separate luns with disks.

Regards,
Alexander
#AIX-Forum

Originally posted by: SystemAdmin

Sorry, was inattentive, forget the previous message.

could you assign new pools to luns manually?
I mean chlv -m copy1=.. copy2=..?

Regards,
Alexander
#AIX-Forum

Originally posted by: Dave7

So, given the previous situation i did :

chlv -m copy1=mirrorpool_J lv_smp

I got a warning that i should do a reorgvg, and now amazingly i have :

[root@SAPSMPC1]
{HC001XFT
}/> lsvg -m appvg Logical Volume    Copy 1            Copy 2            Copy 3 lv_smp            mirrorpool_J      mirrorpool_J      mirrorpool_R lv_sys                              mirrorpool_J      mirrorpool_R lv_ascs00                           mirrorpool_J      mirrorpool_R lv_scs01                            mirrorpool_J      mirrorpool_R lv_home                             mirrorpool_J      mirrorpool_R

Not so good !
#AIX-Forum

Originally posted by: SystemAdmin

nope.
first mark all the pool you wanna have:

chlv -m copy1=mirrorpool_J -m copy2=mirrorpool_R lv_smp

then get rid of the third one

chlv -M copy3 lv_smp

Regards,
Alexander
#AIX-Forum

Originally posted by: Dave7

This doesn't work, maybe because to make things more fun all of this is under ha control :

[root@CLUSTER]
{NODE1
}/> /usr/es/sbin/cluster/sbin/cl_chlv -cspoc -n
'NODE1,NODE2' -M copy2 lv_smp HC001XFT: 0516-704 chlv: Unable to change logical volume lv_smp.

#AIX-Forum

Originally posted by: Dave7

OK, so i shot the cluster, and got to work on the VG without enhanced concurent mode.
I can chlv all i want, including with smitty, this does not go back into the lsvg -m display :

[root@SAPSMPC1]
{HC001XFT
}/> lsvg -m db2smpvg Logical Volume    Copy 1            Copy 2            Copy 3 lv_db2smp         mirrorpool_J2     mirrorpool_R      mirrorpool_J2 lv_smp0           mirrorpool_J2     mirrorpool_R      mirrorpool_J2

Anyone seen something like that ?

BTW, you can't chlv -M copy3 lvname, -M does not take an argument and will refuse to do anything if there are any mirrorpools defined.
#AIX-Forum

Originally posted by: SystemAdmin

--BTW, you can't chlv -M copy3 lvname, -M does not take an argument--

Yes it does. -M is documented incorrectly. Refer to APAR 733326.

Regards,
Alexander
#AIX-Forum

Originally posted by: Dave7

I can't seem to find 733326, but still, I did chlv -m copy1=foo -m copy2=bar (on non hacmp controlled vg): it requires a reorgvg afterwards, and this takes ages !
#AIX-Forum

Originally posted by: Dave7

Can you provide me with a link for this APAR ?
Thanks !
#AIX-Forum