How to make sure OS mirror configured

[mw.kim]

Could you show me the answer?

There are Too many disks
I need to find OS cofigured layouts

[Vijaykumar_1 · Accepted solution]

You can check with lvlnboot -v command, as it displays the root,boot and swap configured on the server..

lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c0t6d0s2 (0/0/0/2/0.6.0) -- Boot Disk
/dev/dsk/c2t6d0s2 (0/0/0/3/0.6.0) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c0t6d0s2
/dev/dsk/c2t6d0s2
Root: lvol3 on: /dev/dsk/c0t6d0s2
/dev/dsk/c2t6d0s2
Swap: lvol2 on: /dev/dsk/c0t6d0s2
/dev/dsk/c2t6d0s2
Dump: lvol11_0 on: /dev/dsk/c0t6d0s2, 0
Dump: lvol11_2 on: /dev/dsk/c2t6d0s2, 1

Also you can verify with lvdisplay command..

mirror copies=1

LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 1

[mw.kim]

Thank you really appreciate that..

Is not also configured when I execute lvdisplay /dev/vg_name/lvol_name , it dose display mirror copies = 0 ?

[SoorajCleris]

Hi,

It will show you mirror copies zero.

You can check the with lvdisplay -v also. If you see two physiscal extents there. It means it is mirrored. else no.

Regards,
Sooraj

[SoorajCleris]

For example

[hpa50-11]/ >lvdisplay /dev/vg00/lvol1
--- Logical volumes ---
LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd


Mirror copies 0


Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 300
Current LE 75
Allocated PE 75
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default


Regards,
Sooraj

[Lijeesh N G_1]

Hi,

Is not also configured when I execute lvdisplay /dev/vg_name/lvol_name ,
it dose display mirror copies = 0 ?

==>If it is "0" means,the specified logical volume is not mirrored.
==>If it is "1 or more" means,the specified logical volume is mirrored.
If it is 1 means, the LV has one copy of mirror, if it is it has two mirror copies.

Regards,
LIJEESH N G

[Lijeesh N G_1]

Typo,

If it is "2" means , it has two mirror copies.

[Lijeesh N G_1]

Hi,

Example for 1 mirror copy,

# lvdisplay /dev/vg00/lvol1
--- Logical volumes ---
LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 1
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 576
Current LE 18
Allocated PE 36
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default

Regards,
LIJEESH N G