search for: thinpool

...System manually using this option and this is the anaconda file produced: part /boot --fstype="xfs" --ondisk=vda --size=500 part pv.10 --fstype="lvmpv" --ondisk=vda --size=7691 volgroup centos_centos7 --pesize=4096 pv.10 logvol --fstype="None" --grow --size=1232 --thinpool --name=pool00 --vgname=centos_centos7 logvol swap --fstype="swap" --size=819 --name=swap --vgname=centos_centos7 logvol / --fstype="xfs" --grow --maxsize=51200 --size=1024 --thin --poolname=pool00 --name=root --vgname=centos_centos7 The Problem is that when I use this as the...

Hi, I just installed a CentOS 6.5 System with the intention of using thinly provisioned snapshots. I created the volume group, a thinpool and then a logical volume. All of that works fine but when I create a snapshot "mysnap" then the snapshot volume gets displayed in the "lvs" output with the correct information but apparently no device nodes are created under /dev/mapper/ or /dev/(volumge_group_name). Any id...

Hi, Is it possible to create a storage pool based on an LVM thin pool? I read a recent bugzilla but the problem there was that the storage-pool became unusable AFTER creating a thinpool which is a different case. Thanks, Jorge

...ld process (/usr/sbin/lvcreate --name big -L 1024K --type snapshot --virtualsize 1048576K storage) unexpected exit status 5: Volume group "storage" has insufficient free space (0 extents): 1 required. When I create thin volume manually, I do not see it: # lvcreate -n big -V 500G --thinpool storage/lvol1 Using default stripesize 64.00 KiB. WARNING: Sum of all thin volume sizes (500.00 GiB) exceeds the size of thin pool storage/lvol1 and the size of whole volume group (267.93 GiB)! For thin pool auto extension activation/thin_pool_autoextend_threshold should be below...

...if anyone can explain why it happens and if and how can be fixed. The behavior is the same on Centos 6.8 and Centos 7.2. I have a NVME card (Intel DC P3600 -2 TB) on which I create a thinly provisioned logical volume: pvcreate /dev/nvme0n1 vgcreate vgg /dev/nvme0n1 lvcreate -l100%FREE -T vgg/thinpool lvcreate -V40000M -T vgg/thinpool -n brick1 mkfs.xfs /dev/vgg/brick1 If I run a write test ( dd if=/dev/zero of=./zero.img bs=4k count=100000 oflag=dsync ) I see in iotop that the actual disk write is 30 times the amount of data that I'm actually writing to disk). Total DISK READ: 0.00 B/s...

On Fri, Jun 26, 2015 at 10:51 AM, Gordon Messmer <gordon.messmer at gmail.com> wrote: >> , or alternatively making the LVs >> redundant after install is a single command (each) and you can choose >> whether it should be mere mirroring or some MD manged RAID level (modulo >> the LVM RAID MD monitoring issue). > > > I hadn't realized that. That's an

...y VG, and I've converted some of my LVs to raid1 types, but I also have one thin pool that I use for VMs with multiple layers of snapshots.? That pool can't be converted, directly: # lvconvert --type raid1 -m 1 VolGroup/vm_pool --yes ? Operation not permitted on LV VolGroup/vm_pool type thinpool. Is it sufficient to simply convert the tdata and tmeta LVs to raid1 type?? Should I also convert lvol0_pmspare?? Is there anything else I should consider? # lvs VolGroup/vm_pool VolGroup/vm_pool_tmeta VolGroup/vm_pool_tdata VolGroup/lvol0_pmspare ? LV????????????? VG?????? Attr?????? LSize??...

On 09/09/13 03:53, Jorge Fábregas wrote: > Hi, > > Is it possible to create a storage pool based on an LVM thin pool? I > read a recent bugzilla but the problem there was that the storage-pool > became unusable AFTER creating a thinpool which is a different case. Could you paste the bug number? > > Thanks, > Jorge > > _______________________________________________ > libvirt-users mailing list > libvirt-users@redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users

...-name big -L > 1024K --type snapshot --virtualsize 1048576K storage) unexpected exit status > 5: Volume group "storage" has insufficient free space (0 extents): 1 > required. > > When I create thin volume manually, I do not see it: > > # lvcreate -n big -V 500G --thinpool storage/lvol1 > Using default stripesize 64.00 KiB. > WARNING: Sum of all thin volume sizes (500.00 GiB) exceeds the size of > thin pool storage/lvol1 and the size of whole volume group (267.93 GiB)! > For thin pool auto extension activation/thin_pool_autoextend_threshold...

...--type snapshot --virtualsize 1048576K storage) unexpected exit status >> 5: Volume group "storage" has insufficient free space (0 extents): 1 >> required. >> >> When I create thin volume manually, I do not see it: >> >> # lvcreate -n big -V 500G --thinpool storage/lvol1 >> Using default stripesize 64.00 KiB. >> WARNING: Sum of all thin volume sizes (500.00 GiB) exceeds the size of >> thin pool storage/lvol1 and the size of whole volume group (267.93 GiB)! >> For thin pool auto extension activation/thin_pool_auto...