You said you increased the size of a LV, not added a new LV. If you
added a new LV and created a filesystem on it you'd want to add it to
fstab, but if you're growing an existing LV and filesystem you
wouldn't need to change anything - the filesystem you grew would
already be listed in fstab. You did grow the filesystem too, right?
Why do you think you need to reboot?
-------------->
A new disk was added /dev/sdb , to grow existing LV on /dev/sda. So yes, no need to change anything in fstab
[root@server ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name VolGroup00
PV Size 698.54 GB / not usable 4.40 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 22353
Free PE 0
Allocated PE 22353
PV UUID L6igzx-qX3V-TEpR-0A6b-DXT9-eIf9-6Kl65Q
--- Physical volume ---
PV Name /dev/sdb1
VG Name VolGroup00
PV Size 698.64 GB / not usable 10.34 MB
Allocatable yes
PE Size (KByte) 32768
Total PE 22356
Free PE 1556
Allocated PE 20800
PV UUID 7tN9mF-ZUGA-Fsdx-SU30-OHBL-gcVf-IYiDDK
[root@server ~]#
[root@server ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/VolGroup00/LogVol01 swap swap defaults 0 0
[root@server ~]#
[root@server ~]# fdisk -l
Disk /dev/sda: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 91201 732467610 8e Linux LVM
Disk /dev/sdb: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 91201 732572001 83 Linux
[root@server ~]#
( strange though , ID is still showing 83 for /dev/sdb1 , even when i used 8e , while formatting /dev/sdb, ) , i selected 83 for t during fdisk for /dev/sdb
current status
------------------------
[root@server ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
1.3T 426G 812G 35% /
/dev/sda1 99M 29M 65M 31% /boot
tmpfs 3.9G 0 3.9G 0% /dev/shm
[root@server ~]#
old status
---------------------
[root@server ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
730 670G 60G 35% /
/dev/sda1 99M 29M 65M 31% /boot
tmpfs 3.9G 0 3.9G 0% /dev/shm
[root@server ~]#
why reboot? - > I do not intend to do so, just wanted to know.
I agree with chris (using not too large disk) , we do use only 250G disks ( max size) for most of our servers ( except some CDP servers), but in this case someone else wanted little help, and was bent on using large disk, I did caution him though
Thanks
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