topic Re: lvm scan in Operating System - Linux

lvm scan

Tonatiuh — Mon, 15 Nov 2004 15:19:52 GMT

I have created logical volumes using LVM commands, but after reboot all appear as inactive:

[root@RAC1 root]# pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- inactive PV "/dev/sda" of VG "pv1" [189.92 GB / 186.04 GB free]
pvscan -- total: 1 [189.92 GB] / in use: 1 [189.92 GB] / in no VG: 0 [0]

[root@RAC1 root]# vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- found inactive volume group "pv1"
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
vgscan -- WARNING: This program does not do a VGDA backup of your volume group

[root@RAC1 root]# lvscan -D
lvscan -- reading all physical volumes (this may take a while...)
lvscan -- inactive "/dev/pv1/lvol1" [5 MB]
lvscan -- inactive "/dev/pv1/lvol2" [100 MB]
lvscan -- inactive "/dev/pv1/lvol3" [10 MB]
lvscan -- inactive "/dev/pv1/lvol4" [200 MB]
lvscan -- inactive "/dev/pv1/lvol5" [200 MB]
lvscan -- inactive "/dev/pv1/lvol6" [200 MB]
lvscan -- inactive "/dev/pv1/lvol7" [55 MB]
lvscan -- inactive "/dev/pv1/lvol8" [25 MB]
lvscan -- inactive "/dev/pv1/lvol9" [255 MB]
lvscan -- inactive "/dev/pv1/lvol10" [105 MB]
lvscan -- inactive "/dev/pv1/lvol11" [55 MB]
lvscan -- inactive "/dev/pv1/lvol12" [805 MB]
lvscan -- inactive "/dev/pv1/lvol13" [255 MB]
lvscan -- inactive "/dev/pv1/lvol14" [105 MB]
lvscan -- inactive "/dev/pv1/lvol15" [405 MB]
lvscan -- inactive "/dev/pv1/lvol16" [405 MB]
lvscan -- inactive "/dev/pv1/lvol17" [105 MB]
lvscan -- inactive "/dev/pv1/lvol18" [155 MB]
lvscan -- inactive "/dev/pv1/lvol19" [105 MB]
lvscan -- inactive "/dev/pv1/lvol20" [105 MB]
lvscan -- inactive "/dev/pv1/lvol21" [105 MB]
lvscan -- inactive "/dev/pv1/lvol22" [105 MB]
lvscan -- inactive "/dev/pv1/lvol23" [105 MB]
lvscan -- 23 logical volumes with 3.88 GB total in 1 volume group
lvscan -- 23 inactive logical volumes

How can I active again this ones?

Re: lvm scan

Stuart Browne — Mon, 15 Nov 2004 16:32:55 GMT

This is on my RH ES3.0 box:

[root@notes source]# lvscan -D
lvscan -- reading all physical volumes (this may take a while...)
lvscan -- inactive "/dev/CoreVolume/Notes" [6 GB]
lvscan -- inactive "/dev/CoreVolume/Var" [100 GB]
lvscan -- 2 logical volumes with 106 GB total in 1 volume group
lvscan -- 2 inactive logical volumes

However, these two volumes are *IN USE*.

Just try using them in this state.

Use 'lvdisplay /dev/pv1/vol1', and see what 'LV status' is set too. It should be 'available'.

Re: lvm scan

Fred Ruffet — Mon, 15 Nov 2004 17:04:16 GMT

You may miss a "vgchange -a y" in your startup scripts. Try to do it manually, then retry and it should work. If OK, then review your startup scripts.

P.S. : Isn't it a little bit confusing to call a VG PV1 ? :)

Regards,

Fred

Re: lvm scan

Tonatiuh — Mon, 15 Nov 2004 17:22:55 GMT

what am I doing wrong?

[root@RAC1 pv1]# lvscan
lvscan -- ACTIVE "/dev/pv1/lvol1" [5 MB]
lvscan -- ACTIVE "/dev/pv1/lvol2" [100 MB]
lvscan -- ACTIVE "/dev/pv1/lvol3" [10 MB]
lvscan -- ACTIVE "/dev/pv1/lvol4" [200 MB]
lvscan -- ACTIVE "/dev/pv1/lvol5" [200 MB]
lvscan -- ACTIVE "/dev/pv1/lvol6" [200 MB]
lvscan -- ACTIVE "/dev/pv1/lvol7" [55 MB]
lvscan -- ACTIVE "/dev/pv1/lvol8" [25 MB]
lvscan -- ACTIVE "/dev/pv1/lvol9" [255 MB]
lvscan -- ACTIVE "/dev/pv1/lvol10" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol11" [55 MB]
lvscan -- ACTIVE "/dev/pv1/lvol12" [255 MB]
lvscan -- ACTIVE "/dev/pv1/lvol13" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol14" [405 MB]
lvscan -- ACTIVE "/dev/pv1/lvol15" [405 MB]
lvscan -- ACTIVE "/dev/pv1/lvol16" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol17" [155 MB]
lvscan -- ACTIVE "/dev/pv1/lvol18" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol19" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol20" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol21" [105 MB]
lvscan -- ACTIVE "/dev/pv1/lvol22" [105 MB]
lvscan -- 22 logical volumes with 3.09 GB total in 1 volume group
lvscan -- 22 active logical volumes

[root@RAC1 pv1]# raw /dev/raw/raw1 /dev/pv1/lvol1
/dev/raw/raw1: bound to major 58, minor 0

Re: lvm scan

Tonatiuh — Mon, 15 Nov 2004 17:37:36 GMT

Stuart,

IÂ´m afraid my case is diferent:

[root@RAC2 root]# lvdisplay /dev/pv1/lvol1
lvdisplay -- volume group "pv1" of logical volume "/dev/pv1/lvol1"is not active
lvdisplay -- try -D, please

[root@RAC2 root]# lvdisplay /dev/pv1/lvol1 -D
--- Logical volume ---
LV Name /dev/pv1/lvol1
VG Name pv1
LV Write Access read/write
LV Status NOT available
LV # 1
# open 0
LV Size 5 MB
Current LE 640
Allocated LE 640
Allocation next free
Read ahead sectors 10000
Block device 58

Re: lvm scan

Fred Ruffet — Mon, 15 Nov 2004 18:23:57 GMT

=> lvdisplay -- volume group "pv1" of logical volume "/dev/pv1/lvol1"is not active

is typically solved by "vgchange -a y"

Regards,

Fred

Re: lvm scan

Tonatiuh — Mon, 15 Nov 2004 19:10:18 GMT

Yes, it is active right now. THANKS!