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12389
Increase size of LUN
SAN: Calriion CX3-10C
How can I increase size of LUN (50GB) attached to Linux Red Hat host (RHEL 5.2) 64bit by adding new created LUN (200GB)?
What steps do we need to take to get the Linux host to see the new space? I am going to present a new LUN from EMC array to the Linux system.
The existing system partion it looks:
# fdisk -l
Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 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 8844 70935007+ 8e Linux LVM
Disk /dev/sdb: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 51200 52428784 8e Linux LVM
Disk /dev/sdc: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 51200 52428784 8e Linux LVM
Disk /dev/sdd: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 51200 52428784 8e Linux LVM
Disk /dev/sde: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sde1 1 51200 52428784 8e Linux LVM
Disk /dev/emcpowera: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/emcpowera1 1 51200 52428784 8e Linux LVM
madunix1
16 Posts
0
March 8th, 2012 13:00
I will check it tomorrow? ....
If its not the case, can i live with it, I lost (50G)....?
What would I have to do in the future if I want to increase the LUN which aligment should I take?
madunix1
16 Posts
0
March 8th, 2012 13:00
I will do it tomorrow....
madunix1
16 Posts
0
March 9th, 2012 00:00
[root@imail ~]# fdisk -l
Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 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 8844 70935007+ 8e Linux LVM
Disk /dev/sdb: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 51200 52428784 8e Linux LVM
Disk /dev/sdc: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 39162 314568733+ 8e Linux LVM
Disk /dev/sdd: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 51200 52428784 8e Linux LVM
Disk /dev/sde: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sde1 1 39162 314568733+ 8e Linux LVM
Disk /dev/sdf: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdf1 1 51200 52428784 8e Linux LVM
Disk /dev/sdg: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdg1 1 39162 314568733+ 8e Linux LVM
Disk /dev/sdh: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdh1 1 51200 52428784 8e Linux LVM
Disk /dev/sdi: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdi1 1 39162 314568733+ 8e Linux LVM
Disk /dev/emcpowera: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/emcpowera1 1 51200 52428784 8e Linux LVM
Disk /dev/emcpowerb: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/emcpowerb1 1 39162 314568733+ 8e Linux LVM
[root@imail ~]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "VolGroup00" using metadata type lvm2
Found volume group "emc5_vg1" using metadata type lvm2
[root@imail ~]# lvmdiskscan
/dev/ram0 [ 16.00 MB]
/dev/root [ 52.00 GB]
/dev/ram [ 16.00 MB]
/dev/sda1 [ 101.94 MB]
/dev/emcpowera1 [ 50.00 GB] LVM physical volume
/dev/VolGroup00/LogVol01 [ 15.62 GB]
/dev/ram2 [ 16.00 MB]
/dev/sda2 [ 67.65 GB] LVM physical volume
/dev/emc5_vg1/emc5_lv1 [ 348.99 GB]
/dev/ram3 [ 16.00 MB]
/dev/ram4 [ 16.00 MB]
/dev/ram5 [ 16.00 MB]
/dev/ram6 [ 16.00 MB]
/dev/ram7 [ 16.00 MB]
/dev/ram8 [ 16.00 MB]
/dev/ram9 [ 16.00 MB]
/dev/ram10 [ 16.00 MB]
/dev/ram11 [ 16.00 MB]
/dev/ram12 [ 16.00 MB]
/dev/ram13 [ 16.00 MB]
/dev/ram14 [ 16.00 MB]
/dev/ram15 [ 16.00 MB]
/dev/emcpowerb1 [ 300.00 GB] LVM physical volume
2 disks
18 partitions
0 LVM physical volume whole disks
3 LVM physical volumes
[root@imail ~]# pvscan
PV /dev/sda2 VG VolGroup00 lvm2 [67.62 GB / 0 free]
PV /dev/emcpowera1 VG emc5_vg1 lvm2 [50.00 GB / 0 free]
PV /dev/emcpowerb1 VG emc5_vg1 lvm2 [299.99 GB / 1020.00 MB free]
Total: 3 [417.61 GB] / in use: 3 [417.61 GB] / in no VG: 0 [0 ]
[root@imail ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name VolGroup00
PV Size 67.65 GB / not usable 24.47 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 2164
Free PE 0
Allocated PE 2164
PV UUID l4mdVJ-We0U-jvQT-E3RY-zczn-qOFB-T9rwIE
--- Physical volume ---
PV Name /dev/emcpowera1
VG Name emc5_vg1
PV Size 50.00 GB / not usable 3.98 MB
Allocatable yes (but full)
PE Size (KByte) 4096
Total PE 12799
Free PE 0
Allocated PE 12799
PV UUID V2tYvg-cqJf-Vz1U-SWpu-1R8f-OKt6-TbPOwr
--- Physical volume ---
PV Name /dev/emcpowerb1
VG Name emc5_vg1
PV Size 300.00 GB / not usable 4.03 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 76798
Free PE 255
Allocated PE 76543
PV UUID r6kdY1-gaaA-N86h-cjlV-uys9-hoqM-3zrvrG
[root@imail ~]# fdisk -lu /dev/emcpowera1
Disk /dev/emcpowera1: 53.6 GB, 53687074816 bytes
255 heads, 63 sectors/track, 6527 cylinders, total 104857568 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk /dev/emcpowera1 doesn't contain a valid partition table
[root@imail ~]# fdisk -lu /dev/emcpowerb1
Disk /dev/emcpowerb1: 322.1 GB, 322118383104 bytes
255 heads, 63 sectors/track, 39161 cylinders, total 629137467 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk /dev/emcpowerb1 doesn't contain a valid partition table
[root@imail ~]#
dynamox
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March 9th, 2012 04:00
vgdisplay
madunix1
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March 9th, 2012 08:00
[root@imail ~]# vgdisplay
--- Volume group ---
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 67.62 GB
PE Size 32.00 MB
Total PE 2164
Alloc PE / Size 2164 / 67.62 GB
Free PE / Size 0 / 0
VG UUID Nc7ydx-BKZm-BBIp-BrVs-YoCO-elpB-VGcdgy
--- Volume group ---
VG Name emc5_vg1
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 349.99 GB
PE Size 4.00 MB
Total PE 89597
Alloc PE / Size 89342 / 348.99 GB
Free PE / Size 255 / 1020.00 MB
VG UUID SkrPh1-qoR7-LGST-MfSp-UnaJ-XNE1-Pggkul
dynamox
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March 9th, 2012 10:00
so from pvdisplay and vgdispaly everything looks good, the logical volume looks good as well
something does look right from the file system perspective. Have you tried to unmount and re-mount that file system ?
madunix1
16 Posts
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March 10th, 2012 04:00
No I did not, but after the increasing of the LUN I have rebooted the server
[imail ~]$ uptime
14:11:09 up 1 day, 23:44, 3 users, load average: 1.20, 0.52, 0.29
dynamox
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March 10th, 2012 12:00
you rebooted after you ran resize2fs ?
madunix1
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March 10th, 2012 14:00
yes,,,,, but as I told you before the resize2fs went too long so I killed the process as stated in my old post
<...During the procedure of number 6, the system went in loop, i was able to login but anot able to get inside that directory the system was busy increasing the LUN afte a while of 15min, the file system was increasing but to that point and stopped ... I did all the above online and without mounting the filesystem /opt/zimbra.
After the reboot, system came back online with the following size...>
So do you think I should do the resize2fs again?
madunix1
16 Posts
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March 10th, 2012 22:00
#resize2fs /dev/emc5_vg1/emc5_lv1
I will try the above command by end of this week, before that I ll do the snap shot.
I will keep you updated.
Thanks for your help
StuartA58
138 Posts
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August 22nd, 2013 13:00
I want to do this exact thing, but ON THE FLY, with Linux up and applications running; i.e. - extend the PV by 50 GB on the Array and then extend PVs, LVs, File systems on RHEL. I think it should be something like:
# pvscan
# pvresize
# lvextend (or lvresize)
# fsadm ?
Does anybody know how to do this?
Stuart