Increasing the filesystem size

 
Thread Tools Search this Thread
Special Forums Hardware Increasing the filesystem size
# 1  
Old 02-19-2015
Increasing the filesystem size

Hi Guys

We have a VM machine, now I want to increase the size of the filesystem.

We are running RHEL6 O/S.

I have filesystem that is 500GB I want to increase that filesystem to 1.5 TB.

The guy who manages the VM increased the size on the VM machine, now how do I make sure that the changes reflect on the O/S?

Thanks in advance...

Please Help!!!
# 2  
Old 02-19-2015
Well, the big question is "Is your VM provided volume defined as an LVM device or set up to give fixed partitions?"

If the filesystem is an LVM filesystem and you have got the space into your volume group, then using lvextend should do the job. If you use the -r flag then it will alter the filesystem when you resize the logical volume.

If you filesystem is on a fixed slice of disk, then I think you are stuck with it. You would need to do something like this:-
  • Define the new disk or slice as an LVM Physical Volume
  • Create a volume group using this PV
  • Create a logical volume of at least 500Gb in the volume group
  • Format the logical volume as a filesystem.
  • Mount the filesystem & move the data
  • Edit /etc/fstab to point to the new filesystem to be mounted
  • Unmount the original filesystem
  • Unmount the new filesystem and remount it to the correct location
  • Destroy the original filesystem/disk/slice
  • Define the original disk as an LVM PV
  • Extend the volume group by adding this disk/slice
You are now able to use extendlv as described above. What do you have defined?

If your server is actually a single filesystem, then we're in more trouble.


Can you share the contents of /etc/fstab for a starter?



Robin

Last edited by rbatte1; 02-19-2015 at 11:07 AM.. Reason: Removed unecessary blank lines
# 3  
Old 02-19-2015
Thanks for the reply,

Code:
/dev/sde1            /disk5               reiserfs   acl,user_xattr        1 2

I asked the VM guy about "Is your VM provided volume defined as an LVM device or set up to give fixed partitions?"

He replied :

The OS should see one contiguous hard drive. No partitioning

Thanks


Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes them far easier to read and preserves multiple spaces as these may be critical.

Last edited by rbatte1; 02-19-2015 at 11:50 AM.. Reason: Added CODE tags
# 4  
Old 02-19-2015
From your fstab output, this is not LVM.

The 'VM guy' will allocate one or more devices. It's up to you how you use them.

If you display your device now, does it recognise the new size? If so, you are into my long-winded process to make it LVM so that we can be more flexible with it.


Robin
# 5  
Old 02-20-2015
Thanks for the replies,

I am now clueless as to what needs to be done for me to have that filesystem increased.

I have to do a lot of reading...

Thanks
# 6  
Old 02-20-2015
If you provide us with the output of the df and the fstat -l commands, somebody here can assist you.

Last edited by rbatte1; 02-23-2015 at 08:24 AM.. Reason: Added ICODE tags
# 7  
Old 02-23-2015
df -h

Code:
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             200G  103G   98G  52% /
tmpfs                 8.0G   12K  8.0G   1% /dev/shm
/dev/sdb1             1.5T  772G  765G  51% /disk2
/dev/sdc1             1.3T  618G  689G  48% /disk3
/dev/sdd1             1.3T  715G  545G  57% /disk4
/dev/sde1             950G  599G  351G  64% /disk5
/dev/sdf1             850G  826G   25G  98% /disk6
/dev/sdg1             330G  292G   39G  89% /disk7

fdisk -l

Code:
Disk /dev/sdg: 461.7 GB, 461708984320 bytes
255 heads, 63 sectors/track, 56132 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdg1               1       43078   346024003+  83  Linux

When I try to run fstat I get these error: -
Code:
bash: fstat: command not found

Thanks

---------- Post updated at 02:37 PM ---------- Previous update was at 11:23 AM ----------

I used fdisk to check the filesystem :

Code:
sh-2.05b# df -h /disk7
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdg1             330G  292G   39G  89% /disk7
sh-2.05b# fdisk -l /dev/sdg

Disk /dev/sdg: 461.7 GB, 461708984320 bytes
255 heads, 63 sectors/track, 56132 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdg1               1       43078   346024003+  83  Linux
sh-2.05b#

I want /disk7 to be 430G, How do I achieve this?

Last edited by rbatte1; 02-23-2015 at 07:35 AM.. Reason: Changed ICODE tags to just CODE tags
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

Problem in increasing filesystem

Hi Friends, I have a problem while increasing the fileystem. Actually the filesystem is 256 gb and i have to add another 256 gb.So i got a new lun(hdisk) with 256 gb. I added to the vg using the extendvg command. It was successfully added, and when i checked the free pp's in vg it was showing... (4 Replies)
Discussion started by: Mohamed Thamim
4 Replies

2. Solaris

increasing interlace size

Hi All, I have got a RAID 5 SVM in my Solaris Box. Recently we had performance issues with it. So SUN has told us to increase the interlace size to 128k. how can we do it so that we have to recreate the RAID 5. ALso guide what are all the pre cautions that we need to take before doing... (1 Reply)
Discussion started by: jegaraman
1 Replies

3. AIX

Increasing ./usr or any filesystem

Hi guys, I want to increase my ./usr or just one path in my aix6.1 machine. currently if I # lsvg rootvg VOLUME GROUP: rootvg VG IDENTIFIER: 00f6126500004c00000 0012aef0c9035 VG STATE: active PP SIZE: 128... (2 Replies)
Discussion started by: pilotHans
2 Replies

4. AIX

Does HACMP have bugs increasing filesystem or Logical volumes

Hello, Does HACMP have bugs ? I have version 5.4 on AIX 6.1 and when I try to increase filesystem space or logical volume partitions which are under HACMP VG it gives me error: # lsvg rootvg pr0oravg px0oravg pb0oravg pr0sapvg px0sapvg pb0sapvg pr1_pr2_vg pr2_px1_vg # #... (11 Replies)
Discussion started by: filosophizer
11 Replies

5. AIX

Increasing size of a filesytem

hi Im using AIX4.3. Through smit I tried to increase the size of a directory. I changed 10,000 blocks more but finally i got 524288 blocks more. That is before change : 12582912 blocks I have tried for change: 12592912 blocks then i execute smit. But finally I got: ... (3 Replies)
Discussion started by: sumanbangladesh
3 Replies

6. HP-UX

Increasing swap size

We increased our server's RAM 8 -> 32 GB RAM. swap memory is currently 10 GB. With which command I can increase this memory? (1 Reply)
Discussion started by: akyuceisik
1 Replies

7. HP-UX

Help on increasing fs size

Hi Experts, I am not sure whether my question should be in this thread or some other one. I am using HP Tru64 system. Currently one of my filesystem /others is almost full. I need to know the exact commands to increase this filesystem. Please show me how to check for free partitions and add... (5 Replies)
Discussion started by: kingsto88
5 Replies

8. AIX

Increasing the FileSystem Size

Hi Everybody, I have AIX 4.3 and I have a FileSystem with 400GB size, which called /db/run. Because of grow up of the application's data, more storage has been added 200GB. To add this space without affecting the application & the application's requirements, I have to add this 200GB to the existed... (9 Replies)
Discussion started by: aldowsary
9 Replies

9. UNIX for Dummies Questions & Answers

Increasing a directory size

Hello all Can someone tell me I am running a script and the outputs directory is too small to contain the newly created file as a result of this script. How can I increase the directory size? Thanks (9 Replies)
Discussion started by: jonest
9 Replies

10. UNIX for Advanced & Expert Users

Increasing filesystem space

Now, i know a ufs file system can be increased using mkfs but hwo do I take space from a file system and add it to another file system? at my job here, that seems to be possible because I see request on it almost every day. what is the exact command to do this and does the system need to be... (1 Reply)
Discussion started by: TRUEST
1 Replies
Login or Register to Ask a Question