Mirror question

[patounet]

Hi everybody,
does anyone can help me on mirror, well i cannot understand why the mirrorring not work good...

Data for volume group 'zprdev' (PP Size = 64Mb):
Total Free Outer Middle Centre Middle Inner
hdisk3 : 34688Mb 3392Mb 0Mb 0Mb 1024Mb 0Mb 2368Mb
hdisk4 : 34688Mb 3904Mb 0Mb 0Mb 0Mb 0Mb 3904Mb
hdisk5 : 34688Mb 4032Mb 0Mb 0Mb 0Mb 0Mb 4032Mb
hdisk9 : 34688Mb 2624Mb 0Mb 0Mb 0Mb 0Mb 2624Mb
hdisk22: 34688Mb 3392Mb 0Mb 0Mb 0Mb 0Mb 3392Mb
hdisk23: 34688Mb 3968Mb 0Mb 0Mb 0Mb 0Mb 3968Mb
hdisk24: 34688Mb 5120Mb 0Mb 0Mb 0Mb 0Mb 5120Mb
hdisk25: 34688Mb 1472Mb 0Mb 0Mb 0Mb 0Mb 1472Mb

hdisk22 -> hdisk25 is the mirror of hdisk3 -> hdisk9

Sorry for my poor enghlish but i'm french.
Thanks for help.
Patrick.

 

[Morsing]

Why do you think it doesn't work??

Can you give us the output of 'lsvg -l zprdev'??

Cheers

Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support

 

[patounet]

Here after lsvg -l zprdev

zprdev:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
zprdev_data1 jfs 489 978 2 open/syncd /zprdev_data1
zprdev_data2 jfs 480 960 2 open/syncd /zprdev_data2
zprdev_data3 jfs 462 924 2 open/syncd /zprdev_data3
zprdev_redo jfs 9 18 2 open/syncd /zprdev_redo
zprdev_log jfs 8 16 2 open/syncd /zprdev_log
loglv01 jfslog 1 2 2 open/syncd N/A
zprdev_data4 jfs 501 1002 2 open/syncd /zprdev_data4

 

[Morsing]

It looks fine to me. Is there any problems??

Cheers

Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support

 

[patounet]

Not really, but i don't understand (my first message) the free column and the difference beetween hdisk2-hdisk9 and hdisk22-> hdish25.

MAny thanks for your help.

Patrick.

 

[Morsing]

Unless you specify exactly where to put each LVs PP copies you won't see exactly identical disks.
Remember that you mirror LVs not PVs.


The columns you see lists free space. Since the disks are almost full the only free space is the last column which equals the free column.

Cheers

Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support

 

[patounet]

Thanks, it's much comprehensive now. Finally, this mirroring is good.

Now, for monitoring this F/S or Disk can i use nmon tool.

Patrick.

 

[Morsing]

Yes, nmon will tell you something (but not all). Do you know how to use it?

filemon is an excellent tool but you need to know how to analyze the output.

Cheers

Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support

 

[patounet]

Just a little, in fact i wish to use this tool with rrdtool but it doesn't work fine. The result in the gif's aren't good, nothing in.

Patrick.