Veritas dmpfs


 
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Operating Systems Solaris Veritas dmpfs
# 1  
Old 11-24-2009
Veritas dmpfs

Hi All


I have the below configuration after installation of veritas 4.1 on Solaris 10

swap 65G 0K 65G 0% /dev/vx/dmp
swap 65G 0K 65G 0% /dev/vx/rdmp


But what I need is

dmpfs 65G 0K 65G 0% /dev/vx/dmp
dmpfs 65G 0K 65G 0% /dev/vx/rdmp

How can I change it .........
I am very new to Veritas
Pls.... its urgent
Thanks
# 2  
Old 11-24-2009
VxVM 4.0 onwards introduced DMP filesystem (dmpfs) - this is used for the dmp metanodes/metadevices that map to the underlying OS devices.

The following extract is from a Linux technote - exact details may differ slightly depending on OS, but the overall principle is the same

from: VERITAS Storage Foundation (tm) and Storage Foundation HA 4.0 for Linux - An Introduction ( VERITAS Storage Foundation (tm) and Storage Foundation HA 4.0 for Linux - An Introduction )
------------------------------
DMP File System
The total number of disk devices (including partition devices) that are supported by the Dynamic Multipathing feature (DMP) is no longer limited to 255. This is made possible by the introduction of the dmpfs file system, which supports more than 4 billion disks with 16 partitions per disk on a system. This is many more than the number of disk devices that Linux typically supports. (This limitation is expected to be removed when the 2.6 version kernel is introduced.)
------------------------------

The "filesystems" are created as part of the installation process (ie: will see them in df -k output after VxVM is installed / loaded onto the system)
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