[linux-lvm] How do I find out if my logic volume is striped or not?
Eric Wang
mrlist at ActiveState.com
Thu May 31 17:08:06 UTC 2001
I am trying to achive the best performance
here is my situation
#vgdisplay -v
--- Volume group ---
VG Name TITAN
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 0
MAX LV Size 255.99 GB
Max PV 256
Cur PV 3
Act PV 3
VG Size 98.65 GB
PE Size 4 MB
Total PE 25255
Alloc PE / Size 19482 / 76.1 GB
Free PE / Size 5773 / 22.55 GB
VG UUID c2I7Km-QuZy-O3GK-nUXL-WtAC-VHRO-r75ivY
--- Logical volume ---
LV Name /dev/TITAN/home
VG Name TITAN
LV Write Access read/write
LV Status available
LV # 1
# open 0
LV Size 76.1 GB
Current LE 19482
Allocated LE 19482
Stripes 2
Stripe size (KByte) 4
Allocation next free
Read ahead sectors 120
Block device 58:0
--- Physical volumes ---
PV Name (#) /dev/hda9 (3)
PV Status available / allocatable
Total PE / Free PE 5649 / 5649
PV Name (#) /dev/hdb1 (1)
PV Status available / allocatable
Total PE / Free PE 9803 / 63
PV Name (#) /dev/hdc1 (2)
PV Status available / allocatable
Total PE / Free PE 9803 / 63
I am trying to create stripped lv here, how I am going to do that?
anyway an odd problem is after create a stripped lv then vgextent the vg
with /dev/hda9, but I can't lvextent the lv
# lvextend -L+20G /dev/TITAN/home
lvextend -- extending logical volume "/dev/TITAN/home" to 96.1 GB
lvextend -- not enough free/allocatable physical extents to extend logical volume "/dev/TITAN/home"
what was the problem?
On Thu, 31 May 2001 14:34:57 +0200
"Heinz J. Mauelshagen" <Mauelshagen at sistina.com> wrote:
>
> Eric,
>
> lvdisplay shows lines beginning with "Stripes" and "Stripe size (KByte)"
> in case you use it on a striped LV and /proc/lvm/global displays
> information as well.
>
> On Wed, May 30, 2001 at 07:11:36PM -0700, Eric Wang wrote:
> > Hi all,
> >
> > How do I find out if my logic volume is striped or not?
> > lvdisplay seems not produce this information.
> >
> > Thanks
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm at sistina.com
> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
>
> --
>
> Regards,
> Heinz -- The LVM Guy --
>
> *** Software bugs are stupid.
> Nevertheless it needs not so stupid people to solve them ***
>
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>
> Heinz Mauelshagen Sistina Software Inc.
> Senior Consultant/Developer Am Sonnenhang 11
> 56242 Marienrachdorf
> Germany
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> FAX 924446
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