[linux-lvm] Important diretories are missing after adding space.
formisc at gmail.com
Sat Sep 4 13:29:15 UTC 2010
I added a second parttion to vg, extended lv and fs, mounted ir back. Checked -alm directories were in place. Proceeded with creation a few large files * also worked fine. Switched the machiine off and went to bed.
Next day booted to discover that few , but the most important, dies are missing.
Please advise - I'm extremely upset. Since the back is outdated.
Here is a log from history I could retrive and some additional information.
I run Centos 5.4 rpm based. (2.6.18-164.15.1.el5.centos.plus) with lvm2 ( rpm 2.6.18-164.15.1.el5.centos.plus). I followed the [url]http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html[/url] and
here is the list of what i have (now):
/dev/VG_SYS/LogVol00 / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
/dev/VG_SYS/LogVol01 swap swap defaults 0 0
/dev/VG_Storage00/LG_VG_Storage00_00 /u01/app/ ext3 defaults 0 0
#/dev/mapper/VG_Storage01-LV_VG_STORAGE01 /mnt/storage ext3 defaults 0 0
/dev/mapper/VG_Storage-LV_00 /mnt/storage ext3 defaults 0 0
[root at server ~]# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
LogVol00 VG_SYS -wi-ao 148.07G
LogVol01 VG_SYS -wi-ao 896.00M
LV_00 VG_Storage -wi-a- 931.33G
LG_VG_Storage00_00 VG_Storage00 -wi-ao 149.05G
LV_Backup VG_backup -wi-ao 232.87G
[root at server ~]# vgs
VG #PV #LV #SN Attr VSize VFree
VG_SYS 1 2 0 wz--n- 148.95G 0
VG_Storage 2 1 0 wz--n- 931.33G 0
VG_Storage00 2 1 0 wz--l- 149.05G 0
VG_backup 3 1 0 wz--n- 232.87G 0
[root at server ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/hdc1 VG_Storage00 lvm2 a- 74.53G 0
/dev/hdc2 VG_backup lvm2 a- 74.52G 0
/dev/hdd1 VG_Storage00 lvm2 a- 74.53G 0
/dev/hdd2 VG_backup lvm2 a- 74.52G 0
/dev/hdd3 VG_backup lvm2 a- 83.83G 0
/dev/sda2 VG_SYS lvm2 a- 148.95G 0
/dev/sdb1 VG_Storage lvm2 a- 465.67G 0
/dev/sdb5 VG_Storage lvm2 a- 465.67G 0
/dev/sdb6 lvm2 -- 465.93G 465.93G
now here is what i did.
i took the sdb5 and added to VG_STORAGE, extended lvs and extended the FS. Mounted and uuuupps. half of the directories are gone.
here is the history of commands. All run w/o errors. Well, at least obvious errors that would have caught my eye.
vgextend /dev/mapper/VG_Storage /dev/sdb5
lvextend -l+100%VG /dev/VG_Storage00/LG_VG_Storage00_00
lvextend -l+100%FREE /dev/mapper/VG_Storage-LV_00
e2fsck -f /dev/mapper/VG_Storage-LV_00
df -h /mnt/storage/
Filesystem Size Used Avail Use% Mounted on
932G 488G 407G 55% /mnt/storage
du -hs /mnt/storage/
now, i think i mounted and checked the space.
i ran a couples of commands that created a few big files in the one the directories. Everything went just fine. I never checked if all old directories exist.
Today booted - and all directories/files i created after extension of the fs are in place. Some old dirs are there too. But some (~50%) are missing. Obviously, those are the ones i do care about the most..
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