noob question

"Fitzgerald, Dan" <dfitzger@xxxxxxxxxx> · Mon, 6 Jan 2014 22:11:30 +0000

I had our VMWare admin extend the file system on which /space is mounted (/dev/sda8). I’m trying to expand the file system. In the short time I’ve been researching, it appears that I want to use xfs_growfs.

I’m both a debian and xfs noob, used to AIX. This is the first day of my second week here, and as I’m the closest thing here to a linux admin, I get the opportunity to learn. This is a box that is not yet in production, and the anticipation
 is that the /space directory will need to be twice its’ current size once the real data starts showing up.

System specifics:

root@thisbox:/# xfs_repair -V
xfs_repair version 3.1.7

root@thisbox:/# uname -a
Linux vmdamims01apl 3.10-0.bpo.2-amd64 #1 SMP Debian 3.10.5-1~bpo70+1+ims1 (2013-08-19) x86_64 GNU/Linux

Here’s what I get when I try to use xfs_growfs, both the –d and the –D option (the 25000000 size is an arbitrary number above 19323392):

root@vmdamims01apl:/# xfs_growfs -d /space
meta-data="" isize=256    agcount=4, agsize=4830848 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=19323392, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=9435, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data size 19323391 too small, old size is 19323392

root@vmdamims01apl:/# xfs_growfs -D 25000000 /space
meta-data="" isize=256    agcount=4, agsize=4830848 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=19323392, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=9435, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data size 25000000 too large, maximum is 19323391

df –k . says this:

/space# df -k .
Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/sda8       77255828 15375660  61880168  20% /space

Any help in getting me on track appreciated: don’t mind doing the work & the reading, quite willing to be self-sufficient, but a shove in the right direction would be a great help. One thing I’d like
 to do is see what space is actually available: I’m told that the presented disk was extended by 150Gb in VMWare. How can I verify that? Thanks!

Regards,

Dan

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