hi all guru: Just writing a script now and confused by the output from different option. first LVM is striped over 2 PV, lvdisplay -v report a size of 500M and -c option report 1032192 kb. and second LVM is a linear LVM, while -v report size of 300M and -c report 614400 kb. read through MAN page a few rounds and google over the net, did not get too much detail of the formula for the computation. seek help from any one here. thanks -------------------first lvm output -v option --- Logical volume --- LV Name /dev/vg01/lvol1 VG Name vg01 LV Write Access read/write LV Status available LV # 1 # open 0 LV Size 504 MB Current LE 126 Allocated LE 126 Stripes 2 Stripe size (KByte) 4 Allocation next free Read ahead sectors 1024 Block device 58:0 --- Distribution of logical volume on 2 physical volumes --- PV Name PE on PV reads writes /dev/hdb1 63 0 2 /dev/hdb2 63 0 0 --- logical volume i/o statistic --- 0 reads 2 writes --- Logical extents --- LE PV PE reads writes 00000 /dev/hdb1 00000 0 2 00001 /dev/hdb1 00001 0 0 00002 /dev/hdb1 00002 0 0 ..................................... -c option /dev/vg01/lvol1:vg01:3:1:0:0:1032192:126:126:0:1024:58:0 ---------------------------second LVM --- Logical volume --- LV Name /dev/vg45/lv45 VG Name vg45 LV Write Access read/write LV Status available LV # 1 # open 0 LV Size 300 MB Current LE 75 Allocated LE 75 Allocation next free Read ahead sectors 1024 Block device 58:1 --- Distribution of logical volume on 1 physical volume --- PV Name PE on PV reads writes /dev/hdb4 75 0 2 --- logical volume i/o statistic --- 0 reads 2 writes --- Logical extents --- LE PV PE reads writes 00000 /dev/hdb4 00000 0 2 00001 /dev/hdb4 00001 0 0 00002 /dev/hdb4 00002 0 0 00003 /dev/hdb4 00003 0 0 ................................................... -c option output /dev/vg45/lv45:vg45:3:1:0:0:614400:75:75:0:1024:58:1 __________________________________ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/ _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
