lvextend not possible...

Frequent Advisor

lvextend not possible...

Hi All,


I am not able to extend my LV by 100gb.What i did was there was no space in VG vgALRN_3.

After checking lvmtab configuration for this VGi have added 33gb*4 disks under this VG.

VG was extended by 132gb but still I am not able to extend the LV /dev/vgALRN_3/lvdbALRN.


I saw following parameter are set

Stripes                     8
Stripe Size (Kbytes)        8


Can someone explaim me how should i go ahead if i need to extend the LV by 100gb.




:root # lvdisplay /dev/vgALRN_3/lvdbALRN
--- Logical volumes ---
LV Name                     /dev/vgALRN_3/lvdbALRN
VG Name                     /dev/vgALRN_3
LV Permission               read/write
LV Status                   available/syncd
Mirror copies               0
Consistency Recovery        MWC
Schedule                    striped
LV Size (Mbytes)            268416
Current LE                  16776
Allocated PE                16776
Stripes                     8
Stripe Size (Kbytes)        8
Bad block                   NONE
Allocation                  strict
IO Timeout (Seconds)        default

:root # vgdisplay /dev/vgALRN_3
--- Volume groups ---
VG Name                     /dev/vgALRN_3
VG Write Access             read/write
VG Status                   available
Max LV                      511
Cur LV                      1
Open LV                     1
Max PV                      511
Cur PV                      12
Act PV                      12
Max PE per PV               131072
VGDA                        24
PE Size (Mbytes)            16
Total PE                    25164
Alloc PE                    16776
Free PE                     8388
Total PVG                   0
Total Spare PVs             0
Total Spare PVs in use      0
VG Version                  2.0
VG Max Size                 2t
VG Max Extents              131072

:root #

Chirag Parikh
Frequent Advisor

Re: lvextend not possible...

Hi Heman,


I dont think we have anyother option except to have same number of LUN's with comparision of (total stripes define for LV to extend the striped LV. I couldn't found a way to change the striped value as well... :)


Thanks & Regards,

Chirag Parikh