Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Importing and mounting a file system from another system
The fscdsconv command can be used to import and mount a file system that was
previously used on another system.
To import and mount a file system from another system
◆
Convert the file system:
# fscdsconv -f recovery_file -i special_device
Enter y to convert the byte order of the file system when
prompted by fscdsconv. If the migration converted the byte
order of the file system, fscdsconv creates a recovery file
that persists after the migration completes. If required,
you can use this file to restore the file system to its original
state at a later time.
If the byte order of the
file system needs to be
converted
A message displays that the byte order of the file system
does not need to be converted.
If the byte order of the
file system does not need
to be converted
Alignment value and block size
On the AIX, Linux and Solaris operating systems, an alignment value of 1 is
equivalent to a block size of 512 bytes. On the HP-UX operating system, it is
equivalent to a block size of 1024 bytes.
The block size on HP-UX is different from that on other supported platforms.
Output from commands such as vxdisk and vxprint looks different on HP-UX
for the same disk group if the -b option is not specified.
Moving disk groups between HP-UX and Linux systems
A disk group created on an HP-UX system typically has device numbers greater
than 1000. When that disk group is imported on a Linux machine with a pre-2.6
kernel, the devices are reassigned minor numbers less than 256.
If a disk group on a Linux system is imported to an HP-UX system, all device
numbers will be less than 256. If those devices are available (that is, they do not
conflict with devices in an imported boot disk group) they will be used. Otherwise
new device numbers will be reassigned.
A single disk group could contain a number of devices exceeding the maximum
number of devices for a given platform. In this case, the disk group cannot be
497Migrating data between platforms
Alignment value and block size