[Jfs-discussion] JFS on IBM Subsystem Device Driver (SDD) 1.6 SLES9

[<Nic...@ho...>]

We were planning to utilize JFS on SLES9 utilizing IBM's SDD on an IBM 
DS6800 Storage array, until I read the readme file (1), which says:

3.5  Correction to User's Guide

     o  Supported Filesystem Statement

                 In the current User's Guide, we make various statements 
regarding
                 specific filesystem support.  For Linux 2.6 kernels (the 
SLES 9 and
                 RHEL 4 distributions) SDD will only support the following 
filesystems:

                 o ext2
                 o ext3

                 Please ensure that you do not run any other filesystems 
on your SDD 
                 vpath devices.

Maybe someone can help me understand why JFS would not be supported in 
this type of configuration.  The last line mentions the vpath devices.  We 
are going to be utilizing LVM, with vpath devices, but would not be 
formatting the vpath devices directly.  Any idea if this may be supported?


(1): 
ftp://ftp.software.ibm.com/storage/subsystem/linux/1.6.0.1-8/rd_linux.2.6.txt