02-10-2014
Often times you expose a new LUN which serves as the device for the filesystem. Then the OS just needs to scan and find the new LUN. IBM does make devices that portray more physical defined objects (looking like DASD) though. Hard to give specifics without knowing more about your SAN env (especially the storage unit).
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LEARN ABOUT CENTOS
grub2-probe
GRUB-PROBE(3) Library Functions Manual GRUB-PROBE(3)
NAME
grub-probe -- Probe device information for a given path.
SYNOPSIS
grub-probe [-m | --device-map=FILE]
[-t | --target=(fs|fs_uuid|fs_label|drive|device|partmap|
abstraction|cryptodisk_uuid|
msdos_parttype)]
[-v | --verbose] (PATH|DEVICE)
DESCRIPTION
grub-probe probes a path or device for filesystem and related information.
OPTIONS
--device
Final option represents a DEVICE, rather than a filesystem PATH.
--device-map=FILE
Use FILE as the device map. The default value is /boot/grub/device.map.
--target=(fs|fs_uuid|fs_label|drive|device|partmap|msdos_parttype)
Select among various output definitions. The default is fs.
fs filesystem module
fs_uuid
filesystem UUID
fs_label
filesystem label
drive GRUB drive name
device System device
partmap
partition map module
abstraction
abstraction module
cryptodisk_uuid
cryptographic container
msdos_partmap
MS-DOS partition map
--verbose
Print verbose output.
(PATH|DEVICE)
If --device is passed, a block DEVICE. Otherwise, the PATH of a file on the filesystem.
SEE ALSO
info grub
Wed Feb 26 2014 GRUB-PROBE(3)