HPE Community
Operating System - HP-UX
1848181 Members
7639 Online
104022 Solutions
New Discussion

Re: Filesystem Block size

 
SSP_1
Regular Advisor

‎12-08-2002 11:23 PM

‎12-08-2002 11:23 PM

Filesystem Block size

Hi Experts,

Can anyone pl explain me how to find out block size for a filesystem in hpux11.11. I know when we give "newfs" first time then we come to know or rather we can specify the block size with "-b" option and default is of "4kb". How to find out this info when system is online.
Obstacles exist to challenge you to keep going. Not to quit.
0 Kudos
Reply
3 REPLIES 3
U.SivaKumar_2
Honored Contributor

‎12-08-2002 11:29 PM

‎12-08-2002 11:29 PM

Re: Filesystem Block size

Hi,

#fstyp -v /dev/vgdata/lvol2 | grep f_bsize

regards,
U.SivaKumar





Innovations are made when conventions are broken
0 Kudos
Reply
Stefan Farrelly
Honored Contributor

‎12-09-2002 12:25 AM

‎12-09-2002 12:25 AM

Re: Filesystem Block size


Remember, the 8k shown by f_bsize for vxfs filesystems is not the true blocksize. The real blocksize for a vxfs filesystem is 1k (fs_size from fstyp). HFS is 512bytes.
Im from Palmerston North, New Zealand, but somehow ended up in London...
0 Kudos
Reply
Dietmar Konermann
Honored Contributor

‎12-09-2002 03:02 AM

‎12-09-2002 03:02 AM

Re: Filesystem Block size

The fundamental VxFS blocksize is shown as f_frsize in fstyp(1M) and defaults to 1K.

BTW, the block size for VxFS is not as important as for HFS, since large IO's are able to span lots of blocks... we are talking about the VxFS extents here. A really useful and short explanation can be found in doc:

KBRC00010670
http://www5.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000064722570

Best regards...
Dietmar.
"Logic is the beginning of wisdom; not the end." -- Spock (Star Trek VI: The Undiscovered Country)
0 Kudos
Reply
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.