![]() ![]() Handled via thin-provisioning - giving much better performance - especially if Note - these so called 'thick' snapshot or 'old' snapshot are now better Usable outside (although the format is not really a complicated one) Like your original LV in the moment of snapshot.īut the actual 'raw' content stored in disk is in 'internal' form - not really Which is presented (via magic world of DM targets) to user-space to appear If you want to use such 'snapshot' elsewhere you simply need to *dd* such LV. There is basically NO WAY to use this 'COW' storage area without its original Used to hold all these block (AKA ~1.5MiB or real storage was used so far) But ATM only 1.44% of this space is actually There is just allocated max possible size of snapshot to store all differentĬhunk + some extra metadata. So while your snapshot looks it has size 104Mib and origin 100MiB - it means Your origin stored in a way the came in use. Instead it's a set of differentiating blocks from So while 'lvs' is presenting you the size of snapshot - it's not a 'regular' The snapshot LV does NOT contain whole copy of the origin LV (the one you've > looks like there is some sort of misunderstanding HOW these snapshots with To: LVM general discussion and development, Tomas Dalebjörkĭne 19. 14:44 ` Tomas Dalebjörk 1 sibling, 1 reply 11+ messages in threadįrom: Zdenek Kabelac 13:46 UTC ( / raw) 14:51 ` Phillip Susi 13:46 ` Zdenek Kabelac Difference between snapshot and mailist how to#16:43 how to convert a disk containing a snapshot to a snapshot lv? Tomas Dalebjörk > Are there more things to be considered, such as recreating pv data on disk? > Failed to find logical volume "debian10-vg/loopback" > lrwxrwxrwx 1 root root 7 Dec 18 23:23 debian10-vg-testlv-real -> > lrwxrwxrwx 1 root root 7 Dec 18 23:23 debian10-vg-testlv ->. > lrwxrwxrwx 1 root root 7 Dec 10 19:10 debian10-vg-swap_1 ->. > lrwxrwxrwx 1 root root 7 Dec 13 22:20 debian10-vg-root ->. > lrwxrwxrwx 1 root root 8 Dec 19 17:40 debian10-vg-loopback -> > lrwxrwxrwx 1 root root 7 Dec 10 19:10 debian10-vg-home ->. Trying creating a softlink in /dev/mapper > "/tmp/out": Invalid path for Logical Volume. > # lvconvert -Zn -s debian10-vg/testlv /tmp/out Try converting the disk using lvconvert command > I am trying to understand how to convert a disk containing snapshot data. What exactly are you trying to do here? I can't think ofĪny reason why you would want to copy a snapshot lv to a file then try To: LVM general discussion and development +Cc: Tomas Dalebjörk ![]() 13:46 ` Zdenek Kabelac 1 sibling, 0 replies 11+ messages in thread 16:43 how to convert a disk containing a snapshot to a snapshot lv? Tomas 14:51 ` Phillip Susi * Re: how to convert a disk containing a snapshot to a snapshot lv?.Linux-lvm mailing the LVM HOW-TO at ^ raw reply 11+ messages in thread Lrwxrwxrwx 1 root root 7 Dec 18 23:23 debian10-vg-testlv-real retrying lvconvert lvconvert -Zn -s debian10-vg/testlvįailed to find logical volume there more things to be considered, such as recreating pv data on disk? Lrwxrwxrwx 1 root root 7 Dec 18 23:23 debian10-vg-testlv ->. Lrwxrwxrwx 1 root root 7 Dec 10 19:10 debian10-vg-swap_1 ->. Lrwxrwxrwx 1 root root 7 Dec 13 22:20 debian10-vg-root ->. Lrwxrwxrwx 1 root root 8 Dec 19 17:40 debian10-vg-loopback -> I am trying to understand how to convert a disk containing snapshot data. To: LVM general discussion and development 13:46 ` Zdenek Kabelac 0 siblings, 2 replies 11+ messages in threadįrom: Tomas Dalebjörk 16:43 UTC ( / raw) How to convert a disk containing a snapshot to a snapshot lv? All of help / color / mirror / Atom feed * how to convert a disk containing a snapshot to a snapshot lv? 16:43 Tomas Dalebjörk ![]()
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