Changing device naming for TPD-controlled enclosures

Article:TECH65244  |  Created: 2008-01-18  |  Updated: 2008-01-18  |  Article URL http://www.symantec.com/docs/TECH65244
Article Type
Technical Solution

Product(s)

Environment

Issue



Changing device naming for TPD-controlled enclosures

Solution



The feature to change device naming is available for both, the operating
system-based naming and enclosure-based naming schemes, and if the
TPD-controlled enclosure does not contain fabric disks.

To change device naming for TPD-controlled enclosures

For disk enclosures that are controlled by third-party drivers (TPD) whose
coexistence is supported by an appropriate ASL, the default behavior is to
assign device names that are based on the TPD-assigned node names. You can use
the vxdmpadm command to switch between these names and the device names that are
known to the operating system(OSN
scheme) or the enclosure based names (EBN scheme):

# vxdmpadm setattr enclosure enclosure tpdmode=native|pseudo

The use of this command to change between TPD Pseudo and operating system-based
naming is illustrated in the following example for the enclosure named
pp_emc_clariion0:

# vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
emcpower0s2  auto:cdsdisk    d0           testdg       online
emcpower1s2  auto:cdsdisk    d1           testdg       online
emcpower2s2  auto:cdsdisk    d2           testdg       online
emcpower3s2  auto:cdsdisk    d3           testdg       online
emcpower4s2  auto:cdsdisk    d4           testdg       online
emcpower5s2  auto:cdsdisk    d5           testdg       online

# vxddladm set namingscheme=osn
# vxdmpadm setattr enclosure pp_emc_clariion0 tpdmode=native
# vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
c2t5006016041E03B33d0s2 auto:cdsdisk    d5           testdg       online
c2t5006016041E03B33d1s2 auto:cdsdisk    d4           testdg       online
c2t5006016041E03B33d2s2 auto:cdsdisk    d3           testdg       online
c2t5006016041E03B33d3s2 auto:cdsdisk    d2           testdg       online
c2t5006016041E03B33d4s2 auto:cdsdisk    d1           testdg       online
c2t5006016041E03B33d5s2 auto:cdsdisk    d0           testdg       online

And this second example illustrates changing between TPD Pseudo and enclosure
based naming (EBN)  for the enclosure named pp_emc_clariion0:

# vxdisk list
emcpower0s2  auto:cdsdisk    d0           testdg       online
emcpower1s2  auto:cdsdisk    d1           testdg       online
emcpower2s2  auto:cdsdisk    d2           testdg       online
emcpower3s2  auto:cdsdisk    d3           testdg       online
emcpower4s2  auto:cdsdisk    d4           testdg       online
emcpower5s2  auto:cdsdisk    d5           testdg       online

# vxddladm set namingscheme=ebn
# vxdmpadm setattr enclosure pp_emc_clariion0 tpdmode=native
# vxdisk list
pp_emc_clariion0_0 auto:cdsdisk    d2           testdg       online
pp_emc_clariion0_1 auto:cdsdisk    d1           testdg       online
pp_emc_clariion0_2 auto:cdsdisk    d0           testdg       online
pp_emc_clariion0_3 auto:cdsdisk    d5           testdg       online
pp_emc_clariion0_4 auto:cdsdisk    d4           testdg       online
pp_emc_clariion0_5 auto:cdsdisk    d3           testdg       online



Legacy ID



314537


Article URL http://www.symantec.com/docs/TECH65244


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