Deleting Hbas From Host Groups - HP StorageWorks XP128 User Manual

Deleting HBAs from host groups

NOTE: You cannot perform this operation on host groups for NAS ports.
1. In the LU Path tree, right-click the HBA and select Delete WWN (or Delete iSCSI Name). A confirmation
message appears.
2. Click Yes. The WWN or (iSCSI name) you specified is removed from the LU Path tree.
3. Click Apply in the LUN Manager main pane. A confirmation message appears.
4. Click OK. The settings are applied to the disk array.
Deleting unneeded WWNs from the WWN table
If you disconnect a host that has been connected through a cable to your disk array, the WWN for the
host remains in the WWN table until you remove it.
1. In the WWN table, locate the WWN that is not registered in any host group.
NOTE:
2. Right-click the WWN and select Erase WWN.
3. Click Apply in the LUN Manager main pane. A confirmation message appears.
4. Click OK. The settings are applied to the disk array.
Viewing a list of concatenated parity groups
The XP128/XP1024 supports concatenation of parity groups. If parity groups are concatenated, a logical
volume can be dispersed across the concatenated parity groups. Dispersal of logical volumes can provide
faster access to data (particularly, faster sequential access to data).
1. In the LDEV table, right-click a logical volume (an LDEV).
If the parity groups are concatenated, the Concatenation List command is available in the shortcut
menu.
2. Select Concatenation List. The Concatenation List dialog box appears.
3. Click OK to return to the LUN Manager main pane.
Defining alternate paths
LUN Manager can define alternate paths. If an LU path fails, you can switch to its alternate path.
To create an alternate path, copy the original path from one port to another. For example, to define an
alternate for the LU path between the CL1-A port and logical volume 00:01, copy the LU path from the
CL1-A port to another port.
If you want to define alternate paths when LUN security is removed, you must redefine the LU path.
Table 11 Copying LU paths
To copy paths...
from one iSCSI or Fibre Channel port to another
from one NAS port to another
from a Fibre Channel or iSCSI port to a NAS Port
from a NAS Port to a Fibre Channel or iSCSI Port
40 LUN Manager for the XP128/XP1024
If the Host Group column is blank, the WWN is not registered in any host group.
See...
"Copying paths from one Fibre Channel or iSCSI port to
another" on page 41
"Copying paths from one NAS port to another" on
page 41
"Copying paths from a Fibre Channel or iSCSI port to a
NAS port" on page 42
"Copying paths from a NAS port to a Fibre Channel or
iSCSI port" on page 42