Cannot reduce a LV Erorr Message is as follows - lvreduce: "LogicalExtentNumber" is not smaller than current setting; therefore no logical extents are removed.
and what is trhe commadn string you are using? And how big is the LV currently? Looks like you have told it to reduce to a number that is larger than it currently is.
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Do you have onlineJFS installed. What options of lvreduce you used. Please note sometimes (-l and -L) confuse some people. So, make sure you are using the correct options.
Always, make backup when you do lvreduce. There is a good chance you will lose the data if you do not plan it well.
Below is the lvdisplay and the command lvreduce which I am using
We are not using onlineJFS
# lvdisplay /dev/vg00/lvol9 --- Logical volumes --- LV Name /dev/vg00/lvol9 VG Name /dev/vg00 LV Permission read/write LV Status available/syncd Mirror copies 0 Consistency Recovery MWC Schedule parallel LV Size (Mbytes) 4000 Current LE 125 Allocated PE 125 Stripes 0 Stripe Size (Kbytes) 0 Bad block on Allocation strict IO Timeout (Seconds) default
# # lvreduce -l 3200 /dev/vg00/lvol9 lvreduce: "LogicalExtentNumber" is not smaller than current setting; therefore no logical extents are removed. # # #
If you want to reduce it to 3200MB then you have to use lvreduce -L 3200 /dev/vg00/lvol9
By using (-l small el) you are saying make the new size to 3200 logical extents. Note that your Current LE is 125 (lvdisplay). So you actually is saying increase from 125 to 3200 LEs instead of reducing.
Your current size 4000MB Current LE 125 (4000/125 = 32)
how do u see the actual size? vgdisplay vg00|grep "PE Size"
If you multiply 3200 with your logical extent size which is 32.
3200 * 32 = 102400 MB - which is not correct and possible - that is why you get the error message.
