Questions tagged [thinpool]
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14 questions
0votes
1answer
74views
Determine used space of a block device with no filesystem
How can I determine used space of a block device that has no filesystem on it? If it helps, such device is managed via lvm. I understand that the concept of "used space" on a device without ...
- 101
1vote
1answer
176views
LVM Thin Pool on RAID10 + Metadata on RAID1
Given 2 SSDs and 4 HDDs with their corresponding PVs (/dev/ssd1, /dev/ssd2, /dev/hdd1 to /dev/hdd4). I know, identifiers are not correct, they are just for easier keeping track of what device I'm ...
1vote
0answers
914views
How to repair lvm2 thin_pool?
Recently I had spun up a new vm that I was using as "tempstorage". Basically I set the size to 16tb which was the overall servers max space. I had 3 other vms up and running before this. ...
- 11
3votes
1answer
1kviews
how to snapshot thin provisioned lvm
I'm trying to create an snapshot from a thin provisioned lvm using the below command, but i get errors, is there anyone that can help me? root@ghv214:/dev/ghv214-vg# lvs LV VG Attr ...
1vote
0answers
1kviews
LVM thin pool inactive and failed with: No data available
I am suffering in a problem due to a system crash, I am using LVM-THIN created in proxmox GUI, all lvs is inactive and the lvm seems broken and I saw it needs to fix manually in system log. After ...
6votes
1answer
5kviews
LVM type raid1 & thinpool is it possible?
We are moving an installation from mdadm raid with LVM on top to pure LVM, so we will add the original raid partitions as indendent partitions to the LVM group, something like: # lvcreate -L 240G -n ...
- 261
1vote
0answers
575views
Converting LV to thin pool: VG name mismatch
I'm trying to create a thin pool for docker as i'm changing the root location of docker and i had to delete previous thin pool. Info about situation: vgs VG #PV #LV #SN Attr VSize VFree cah ...
- 11
0votes
0answers
290views
Shrink LVM2 Thin Volume
I would like to shrink the space required by a thin volume used as a disk for a virtual machine (Windows). Unfortunately, the underlying disk is a USB-attached SSD and therefore mounting the NTFS ...
- 41
3votes
1answer
3kviews
Ubuntu/GlusterFS: Unable to create thinly provisioned volume from previously created pool using lvcreate
I'm testing out glusterfs, and was following this guide on creating setting up volumes. I ran into an error when trying to create a thinly provisioned volume. This is the section Create a thinly ...
2votes
1answer
9kviews
LVM: How to recover LVM thin pool / volume after failed repair?
I would like some advise with recovering from broken LVM thin pool / volumes. The step that cause my broken LVM thin is as follows: My thin pool metadata was full (99.4%), so the pool freeze. I tried ...
3votes
2answers
4kviews
Doubled hyphens in LVM /dev/mapper names
I created a thinpool LV using the following command: lvcreate --type thin-pool -l 100%VG -n lv-thinpool vg-test Now /dev/mapper has the following entries: vg--test-lv--thinpool vg--test-lv--...
- 32.5k
5votes
1answer
1kviews
How to perform fstrim on a loop device?
I have LVM with thin-provisioning enabled. I have two almost identical thin logical volumes with ext4 file systems that slightly differs. The first volume is used entirely for storing file system. On ...
- 397
0votes
1answer
1kviews
restore disk backup by writing only non-zero blocks
Assuming you have a disk backup in raw format sda.img and /dev/sda is initially filled with zeroes, how to skip zeroes while restoring the backup? An analog of dd should detect zero block in input ...
- 2,081
1vote
0answers
3kviews
Could not start docker with existing LVM thin pool option
I created an LVM thin pool to be used by Docker for storage. At the docker start time, I tell it to use the thin pool. Everything worked as expected by running docker info , I noted that it is using ...
- 7,352
