[Linux-cluster] gfs2 doc and performance question

[Mahmoud Hanafi]

The man page you point out is for gfs1. The man page for mkfs.gfs2 doesn't 
have the "-b" option for blocksize. That goes to my point about 
documentation.

-Mahmoud

Mahmoud Hanafi
Sr. System Administrator
CSC HPC COE
Bld. 676
2435 Fifth Street
WPAFB, Ohio 45433
(937) 255-1536



--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
This is a PRIVATE message. If you are not the intended recipient, please 
delete without copying and kindly advise us by e-mail of the mistake in 
delivery. NOTE: Regardless of content, this e-mail shall not operate to 
bind CSC to any order or other contract unless pursuant to explicit 
written agreement or government initiative expressly permitting the use of 
e-mail for such purpose.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




"Alexandre Racine" <Alexandre.Racine at mhicc.org> 
Sent by: linux-cluster-bounces at redhat.com
08/15/2007 12:31 PM
Please respond to
linux clustering <linux-cluster at redhat.com>


To
"linux clustering" <linux-cluster at redhat.com>
cc

Subject
RE: [Linux-cluster] gfs2 doc and performance question






I don't know the answer to all your questions, but the blocksize is the 
first option in the man page of gfs_mkfs

# man gfs_mkfs

DESCRIPTION
       gfs_mkfs is used to create a Global File System.


OPTIONS
       -b BlockSize
              Set  the  filesystem block size to BlockSize (must be a 
power of two).  The minimum block size
              is 512.  The FS block size cannot exceed the machine's 
memory page size.  On the  most  archi-
              tectures  (i386, x86_64, s390, s390x), the memory page size 
is 4096 bytes.  On other architec-
              tures it may be bigger.  The default block size is 4096 
bytes.  In  general,  GFS  filesystems
              should not deviate from the default value.
[...]



Alexandre Racine
Projets spéciaux
514-461-1300 poste 3304
alexandre.racine at mhicc.org



-----Original Message-----
From: linux-cluster-bounces at redhat.com on behalf of Mahmoud Hanafi
Sent: Tue 2007-08-14 22:54
To: linux clustering
Subject: [Linux-cluster] gfs2 doc and performance question
 
I been trying to find documentation on gfs2. but it seem that there isn't 
much. 

Is there any detail documentation on gfs2?
Can one set the block size when creating gfs2 filesystem?
Has there been any performance benchmark of gfs2?


Thanks,
Mahmoud Hanafi
Sr. System Administrator
CSC HPC COE
Bld. 676
2435 Fifth Street
WPAFB, Ohio 45433
(937) 255-1536



--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
This is a PRIVATE message. If you are not the intended recipient, please 
delete without copying and kindly advise us by e-mail of the mistake in 
delivery. NOTE: Regardless of content, this e-mail shall not operate to 
bind CSC to any order or other contract unless pursuant to explicit 
written agreement or government initiative expressly permitting the use of 

e-mail for such purpose.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

--
Linux-cluster mailing list
Linux-cluster at redhat.com
https://www.redhat.com/mailman/listinfo/linux-cluster
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20070815/75aab9d3/attachment.htm>