[Linux-cluster] gfs space usage (was Re: a question about gfs file system)
Ed L Cashin
ecashin at coraid.com
Tue Mar 1 15:13:12 UTC 2005
"Yazan Al-Sheyyab" <yazan at ccs.com.jo> writes:
> hello everybody,
>
> how much space that gfs file system can take from a partion ?
>
> i mean that if i have a 500 MB partition and want to format it as gfs file
> system , so how much space will remain for me in this partition after format
> it as gfs file system?
You can try it on a local file. As you can see below, there's not
much left after adding three default-sized journals.
ecashin at kokone tmp$ /sbin/mkfs.gfs -j 3 -p lock_nolock test.gfs
This will destroy any data on test.gfs.
Are you sure you want to proceed? [y/n] y
Device: test.gfs
Blocksize: 4096
Filesystem Size: 29652
Journals: 3
Resource Groups: 8
Locking Protocol: lock_nolock
Lock Table:
Syncing...
All Done
ecashin at kokone tmp$ su
Password:
root at kokone tmp# losetup /dev/loop0 test.gfs
root at kokone tmp# modprobe gfs
root at kokone tmp# mount /dev/loop0 /mnt/
FC2-i386-disc1 mooch-i386-disc1
FC2-i386-disc2 mooch-i386-disc1-bootdisk
FC2-i386-disc3 mooch-i386-disc2
e15.3 mooch-i386-disc3
ed-gfs mooch-i386-stage2
file netstg2.img
loop0 sah
root at kokone tmp# mount /dev/loop0 /mnt/loop0
root at kokone tmp# ls !$
ls /mnt/loop0
root at kokone tmp# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda3 71G 40G 29G 59% /
tmpfs 236M 0 236M 0% /dev/shm
/dev/hda1 942M 37M 858M 5% /boot
/dev/loop0 116M 20K 116M 1% /mnt/loop0
root at kokone tmp#
--
Ed L Cashin <ecashin at coraid.com>
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