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Michael Martinez
Asked: 2015-09-19 10:40:30 +0800 CST

how to get creation date of a lvm snapshot?

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Is there some way to get the date that an lvm snapshot was created?

lvs --version LVM version: 2.02.66(2) (2010-05-20)

Neither lvdisplay nor lvs provides this information. Looking through the man pages on these two commands there are not any options to give it. For that matter, is there a way to get the creation date of any logical volume?

Here is what I see when I run lvdisplay:

~# id; lvdisplay vol0/m0000700.20150108 uid=0(root) gid=0(root) groups=0(root) --- Logical volume --- LV Name /dev/vol0/m0000700.20150108 VG Name vol0 LV UUID ShKkjV-tbL4-SjKv-dfA4-7fft-2Pl1-UKThSs LV Write Access read/write LV snapshot status active destination for /dev/vol0/m0000700 LV Status available # open 0 LV Size 109.05 GiB Current LE 27918 COW-table size 110.00 GiB COW-table LE 28160 Allocated to snapshot 26.12% Snapshot chunk size 4.00 KiB Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:28

lvm

1 Answers

  1. is there a way to get the creation date of any logical volume?

    run command 

    sudo lvdisplay

    output will be 

     --- Logical volume ---
  LV Path                /dev/vg/vol
  LV Name                vol
  VG Name                vg
  LV UUID                9M1Hxw-X4bN-t7t4-7auG-qOnb-WHh1-WJVcne
  LV Write Access        read/write
  LV Creation host, time name, 2015-08-20 11:42:33 +0530
  LV Status              available
  # open                 1
  LV Size                18.62 GiB
  Current LE             4768
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0

    you can see LV Creation host, time

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