* [linux-lvm] How do I find out if my logic volume is striped or not? @ 2001-05-31 2:11 Eric Wang 2001-05-31 12:34 ` Heinz J. Mauelshagen 0 siblings, 1 reply; 5+ messages in thread From: Eric Wang @ 2001-05-31 2:11 UTC (permalink / raw) To: linux-lvm Hi all, How do I find out if my logic volume is striped or not? lvdisplay seems not produce this information. Thanks ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [linux-lvm] How do I find out if my logic volume is striped or not? 2001-05-31 2:11 [linux-lvm] How do I find out if my logic volume is striped or not? Eric Wang @ 2001-05-31 12:34 ` Heinz J. Mauelshagen 2001-05-31 17:08 ` Eric Wang 0 siblings, 1 reply; 5+ messages in thread From: Heinz J. Mauelshagen @ 2001-05-31 12:34 UTC (permalink / raw) To: linux-lvm 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@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 Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [linux-lvm] How do I find out if my logic volume is striped or not? 2001-05-31 12:34 ` Heinz J. Mauelshagen @ 2001-05-31 17:08 ` Eric Wang 2001-06-01 12:08 ` Heinz J. Mauelshagen 0 siblings, 1 reply; 5+ messages in thread From: Eric Wang @ 2001-05-31 17:08 UTC (permalink / raw) To: linux-lvm 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@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@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 > Mauelshagen@Sistina.com +49 2626 141200 > FAX 924446 > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > _______________________________________________ > 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [linux-lvm] How do I find out if my logic volume is striped or not? 2001-05-31 17:08 ` Eric Wang @ 2001-06-01 12:08 ` Heinz J. Mauelshagen 2001-06-01 17:58 ` Eric Wang 0 siblings, 1 reply; 5+ messages in thread From: Heinz J. Mauelshagen @ 2001-06-01 12:08 UTC (permalink / raw) To: linux-lvm On Thu, May 31, 2001 at 10:08:06AM -0700, Eric Wang wrote: > I am trying to achive the best performance > here is my situation Eric, in your IDE case you could gain performance setting up a striped LV on hda *or* hdb and hdc. IDE devices sitting on the same adaptor suffer from io constraints and therefore don't give you parallel thrughput. > > #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? You already created one; see the lines above saying "Stripes 2" and "Stripe size (KByte) 4". > > 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? That's a constraint of the LVM which will disapear in a post 1.0 release. If you want to extend on multiple PVs you need to go with a linear LV. Regards, Heinz -- The LVM Guy -- > > > On Thu, 31 May 2001 14:34:57 +0200 > "Heinz J. Mauelshagen" <Mauelshagen@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@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 > > Mauelshagen@Sistina.com +49 2626 141200 > > FAX 924446 > > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > _______________________________________________ > > 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 > > > _______________________________________________ > 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 *** 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 Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [linux-lvm] How do I find out if my logic volume is striped or not? 2001-06-01 12:08 ` Heinz J. Mauelshagen @ 2001-06-01 17:58 ` Eric Wang 0 siblings, 0 replies; 5+ messages in thread From: Eric Wang @ 2001-06-01 17:58 UTC (permalink / raw) To: linux-lvm Thanks Heinz! Let me make straight, you mean if I created a stripped lv, and then I will not be able to extent the lv to a other pv? then if I have 3 pv in different size, then lvcreate -i 3 -I 4 -L all_disk_sparce -n name vgname will never work? or maybe untill version 1.0 it will work? And I still have a question, if I have both SCSI and IDE disks in one machine , if I can created a big lv with pv come from both SCSI and IDE disks? On Fri, 1 Jun 2001 14:08:05 +0200 "Heinz J. Mauelshagen" <Mauelshagen@sistina.com> wrote: > On Thu, May 31, 2001 at 10:08:06AM -0700, Eric Wang wrote: > > I am trying to achive the best performance > > here is my situation > > Eric, > in your IDE case you could gain performance setting up a striped LV > on hda *or* hdb and hdc. > IDE devices sitting on the same adaptor suffer from io constraints > and therefore don't give you parallel thrughput. > > > > > #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? > > You already created one; see the lines above saying "Stripes 2" and > "Stripe size (KByte) 4". > > > > > 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? > > That's a constraint of the LVM which will disapear in a post 1.0 release. > If you want to extend on multiple PVs you need to go with a linear LV. > > Regards, > Heinz -- The LVM Guy -- > > > > > > > On Thu, 31 May 2001 14:34:57 +0200 > > "Heinz J. Mauelshagen" <Mauelshagen@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@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 > > > Mauelshagen@Sistina.com +49 2626 141200 > > > FAX 924446 > > > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > > _______________________________________________ > > > 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 > > > > > > _______________________________________________ > > 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 > > *** 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 > Mauelshagen@Sistina.com +49 2626 141200 > FAX 924446 > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > _______________________________________________ > 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2001-06-01 17:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2001-05-31 2:11 [linux-lvm] How do I find out if my logic volume is striped or not? Eric Wang 2001-05-31 12:34 ` Heinz J. Mauelshagen 2001-05-31 17:08 ` Eric Wang 2001-06-01 12:08 ` Heinz J. Mauelshagen 2001-06-01 17:58 ` Eric Wang
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