On Sun, Jul 13, 2003 at 12:11:51PM +0200, Heinz J . Mauelshagen wrote: > Petro, > what's the lvcreate command line ? lvcreate -L10G -n snap000 -s /dev/vg0 > (highmem may cause problems if you use the snapsho9t, creation should > work fine) Is this highmem problem across all 2.4 kernels, or just 2.4.19+? The first report I've seen of it is with a 2.4.19 kernel. > > Regards, > Heinz -- The LVM Guy -- > > On Fri, Jul 11, 2003 at 05:01:27PM -0700, Petro wrote: > > Hello again. > > > > I'm having a problem with LVM, and I'm really, really hoping you won't > > tell me it's because of: > > > > # CONFIG_NOHIGHMEM is not set > > CONFIG_HIGHMEM4G=y > > # CONFIG_HIGHMEM64G is not set > > CONFIG_HIGHMEM=y > > CONFIG_HIGHIO=y > > > > (linux kernel 2.4.21, lvm 1.0.7 stuff installed) > > > > I've got 8 boxes with 4 gig of memory, and 6 200 gig drives in a raid 0 > > setup, and I need to use LVM+Snapshots. > > > > I can setup and create a 1.09T logical volume, but when I go to create a > > snaphot, I get: > > > > lvcreate -- INFO: using default snapshot chunk size of 64 KB for "/dev/vg0/test" > > lvcreate -- ERROR "Cannot allocate memory" creating VGDA for "/dev/vg0/test" in kernel > > > > Now, in reading past posts there is some talk of how having "high > > memory" turned on will cause problems with snapshots. > > > > The problem is that on these machines I *need* 4 gig of memory, and I > > *need* snapshots. > > > > Help? > > > > > > --- Physical volume --- > > PV Name /dev/sda > > VG Name vg0 > > PV Size 1.09 TB [2344319232 secs] / NOT usable 32.31 MB [LVM: 267 KB] > > PV# 1 > > PV Status available > > Allocatable yes > > Cur LV 1 > > PE Size (KByte) 32768 > > Total PE 35770 > > Free PE 570 > > Allocated PE 35200 > > PV UUID LyEPH1-pq2I-D022-v5c9-98rp-n7Ff-4LnNKL > > > > --- Volume group --- > > VG Name vg0 > > VG Access read/write > > VG Status available/resizable > > VG # 0 > > MAX LV 256 > > Cur LV 1 > > Open LV 1 > > MAX LV Size 2 TB > > Max PV 256 > > Cur PV 1 > > Act PV 1 > > VG Size 1.09 TB > > PE Size 32 MB > > Total PE 35770 > > Alloc PE / Size 36032 / 1.10 TB > > Free PE / Size 4294967034 / 131071.99 TB > > VG UUID KciSkB-xbr8-22RM-zmke-6A69-6BEM-xLWMzv > > > > --- Logical volume --- > > LV Name /dev/vg0/lv0 > > VG Name vg0 > > LV Write Access read/write > > LV Status available > > LV # 1 > > # open 1 > > LV Size 1.07 TB > > Current LE 35200 > > Allocated LE 35200 > > Allocation next free > > Read ahead sectors 1024 > > Block device 58:0 > > > > > > procs memory swap io system cpu > > r b w swpd free buff cache si so bi bo in cs us sy id > > 0 0 0 0 3949704 1648 26104 0 0 3 2 27 5 0 0 100 > > > > > > -- > > "On two occasions, I have been asked [by members of Parliament], 'Pray, > > Mr. Babbage, if you put into the machine wrong figures, will the right > > answers come out?' I am not able to rightly apprehend the kind of confusion > > of ideas that could provoke such a question." -- Charles Babbage > > > > _______________________________________________ > > 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/ > > *** 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://tldp.org/HOWTO/LVM-HOWTO/ -- "On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." -- Charles Babbage _______________________________________________ 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/
