hi all, my volume group has 48396 PEs free using three disks. whenever i try to setup a striped LV using 48396 PEs it fails with "please check, if physical volumes are allocatable". if i issue the same command without the "-i 3" parameter the LV is successfully created. i tried specifying the LV size with -L instead of -l and it results in the same thing. i have 189.05GB PE free, i issue "-i 3 -L 180G" and it fails with the afformentioned message. oddly if i issue "-i 3 -L 170G" it will get created and there are still free PEs to be used. why can't i use all of the free PEs on my VG in a single LV? i'm eventually going to use this setup with over a 1TB VG so if i can't use the full drive space then it would be a big loss i space. any ideas? appreciated guys and gals! look below for a log of my activity, it's very straight forward and shows the problems i encounter. :) -- snip snip -- root@iron-y:~# pvcreate --version pvcreate: Logical Volume Manager 1.0.4 Heinz Mauelshagen, Sistina Software 02/05/2002 (IOP 10) root@iron-y:~# pvcreate /dev/hd[e-g] pvcreate -- physical volume "/dev/hde" successfully created pvcreate -- physical volume "/dev/hdf" successfully created pvcreate -- physical volume "/dev/hdg" successfully created root@iron-y:~# vgcreate vg0 /dev/hd[e-g] vgcreate -- INFO: using default physical extent size 4 MB vgcreate -- INFO: maximum logical volume size is 255.99 Gigabyte vgcreate -- doing automatic backup of volume group "vg0" vgcreate -- volume group "vg0" successfully created and activated root@iron-y:~# vgdisplay -v --- Volume group --- VG Name vg0 VG Access read/write VG Status available/resizable VG # 0 MAX LV 256 Cur LV 0 Open LV 0 MAX LV Size 255.99 GB Max PV 256 Cur PV 3 Act PV 3 VG Size 189.05 GB PE Size 4 MB Total PE 48396 Alloc PE / Size 0 / 0 Free PE / Size 48396 / 189.05 GB VG UUID 1EaNPQ-tf5q-YO17-icw0-Qe2V-y2Vc-hQ401T --- No logical volumes defined in "vg0" --- --- Physical volumes --- PV Name (#) /dev/hdg (3) PV Status available / allocatable Total PE / Free PE 19078 / 19078 PV Name (#) /dev/hde (1) PV Status available / allocatable Total PE / Free PE 14659 / 14659 PV Name (#) /dev/hdf (2) PV Status available / allocatable Total PE / Free PE 14659 / 14659 root@iron-y:~# lvcreate -i 3 -l 48396 -n lv0 vg0 lvcreate -- INFO: using default stripe size 16 KB lvcreate -- not enough allocatable/free physical volume space in "vg0" lvcreate -- please check, if physical volumes are allocatable root@iron-y:~# lvcreate -l 48396 -n lv0 vg0 lvcreate -- doing automatic backup of "vg0" lvcreate -- logical volume "/dev/vg0/lv0" successfully created root@iron-y:~# lvremove /dev/vg0/lv0 lvremove -- do you really want to remove "/dev/vg0/lv0"? [y/n]: y lvremove -- doing automatic backup of volume group "vg0" lvremove -- logical volume "/dev/vg0/lv0" successfully removed root@iron-y:~# vgdisplay | grep PE PE Size 4 MB Total PE 48396 Alloc PE / Size 0 / 0 Free PE / Size 48396 / 189.05 GB root@iron-y:~# lvcreate -i 3 -L 180G -n lv0 vg0 lvcreate -- INFO: using default stripe size 16 KB lvcreate -- not enough allocatable/free physical volume space in "vg0" lvcreate -- please check, if physical volumes are allocatable root@iron-y:~# lvcreate -i 3 -L 170G -n lv0 vg0 lvcreate -- INFO: using default stripe size 16 KB lvcreate -- rounding to stripe boundary size lvcreate -- doing automatic backup of "vg0" lvcreate -- logical volume "/dev/vg0/lv0" successfully created root@iron-y:~# vgdisplay | grep PE PE Size 4 MB Total PE 48396 Alloc PE / Size 43521 / 170 GB Free PE / Size 4875 / 19.04 GB root@iron-y:~# lvremove /dev/vg0/lv0 lvremove -- do you really want to remove "/dev/vg0/lv0"? [y/n]: y lvremove -- doing automatic backup of volume group "vg0" lvremove -- logical volume "/dev/vg0/lv0" successfully removed root@iron-y:~# vgdisplay | grep PE PE Size 4 MB Total PE 48396 Alloc PE / Size 0 / 0 Free PE / Size 48396 / 189.05 GB root@iron-y:~# lvcreate -L 180G -n lv0 vg0 lvcreate -- doing automatic backup of "vg0" lvcreate -- logical volume "/dev/vg0/lv0" successfully created -- snip snip -- regards, vahid ===== < NPACI Education Center on Computational Science and Engineering > < http://edcenter.sdsu.edu > "Career is great, but you can’t run your hands through its hair." ===== __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.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://www.sistina.com/lvm/Pages/howto.html
