HP StorageWorks Scalable File Share User Manual

Page 118

Creating and modifying file systems

5–34

To add or remove an interconnect for a file system, perform the following steps:

Unmount the file system on all client nodes.

Stop the file system as shown in the following example, where the

data

file is system is stopped:

sfs> stop filesystem data

Do not proceed to the next step (running the

modify filesystem

command) until the file system is

stopped; the file system is stopped when all of the file system services are in the

stopped

down

state. See Section 3.7 for more information on the

stop filesystem

command.

When the file system is stopped, enter the

modify filesystem

command, as shown in the

following example:

sfs> modify filesystem data

Select an option:

1) Add OSTs
2) Change stripe size
3) Change stripe count
4) Change mount point
5) Change preferred servers
6) Change LUN mount options
7) Change interconnect
8) Change Lustre timeout
9) Change quota options
w) Rewrite LDAP configuration data
c) Cancel

Enter your choice [c]:

Select the

Change interconnect

option, and enter the list of interconnects for the file system, as

follows. The valid interconnects are:

tcp

(Gigabit Ethernet),

(Myrinet),

elan

(Quadrics),

vib

(Voltaire InfiniBand). There must be no space in the list. Use commas to separate the list entries.

Enter your choice [c]: 7

Lustre can use various interconnects for file systems I/O.
The current options for MDS LUNs are: tcp elan

Please enter the comma-separated list of interconnects [tcp,elan]: tcp,gm

Changes made to data do not take effect until the
data file system is restarted using the start filesystem
command.

sfs>

Restart the file system, as shown in the following example:

sfs> start filesystem data

When the file system restarts, the client nodes can remount the file system. If a client node fails to

remount the file system, reboot the client node.