HP StorageWorks XP Remote Web Console Software - Manual (Page 37)

Table 2 Host Mode Options (continued)
When to select this option Host mode options No.
When you do not want to generate the failover from MCU to RCU, and when
the applications that issue the Read commands more than the threshold to S-VOL
of the pair made with XP External Storage Access Manager are performed. XP External Storage
Access Manager Svol
Read Option 48
In XP Continuous Access and in cases where a long distance between M and
R (approximately 100km) and a Switch is not used and in other cases, if the BB Credit Set Up Option
1
3, 4
49
number of BB Credits controlling the amount of transfer data on Fibre must be
tuned.
Use by combining with host mode option 50.
In XP Continuous Access and in cases where a long distance between M and
R (approximately 100km) and a Switch is not used and in other cases, if the BB Credit Set Up Option
2
3, 4
50
number of BB Credits controlling the amount of transfer data on Fibre must be
tuned.
Use by combining with host mode option 49.
In cases where a long distance between M and R (approximately 100km) and
a Switch is not used and in other cases, and if the response time of host I/O
of XP Continuous Access must be tuned. Round Trip Set Up
Option
4
51
When the VAAI (vStorage API for Array Integration) function of VMware
ESX/ESXi 4.1 is used. Support Option for the
EXTENDED COPY
command 54
When you want to change the response content to the server in the configuration
in which XP External Storage Access Manager is being used. HAM response change 57
When HP-UX 11.31 is used, and when you want to prevent adding or deleting
of LUN0. LUN0 Change Guard 60
1
Configure these host mode options only when you are requested to do so.
2
Set UUID when you set a host mode option 33 and the host mode 05 OpenVMS is used.
3
For using the function of increasing the number of BB Credits, the setting of both the options, host mode options 49 and
50, must be performed.
4
Host mode options 49, 50, and 51 are enabled only for 8US package.
Registering Hosts in Host Groups
To set LU paths, you must register hosts in host groups. For example, if HP-UX hosts and Widows
hosts are connected to a port, you must register HP-UX hosts and Windows hosts separately in two
different host groups.
When registering a host, you are requested to specify the WWN of the host bus adapter. If you
are unsure of WWNs of your host bus adapters, see
(page 30) .
When you register hosts in multiple host groups, you must set the security switch (LUN security) to
ON. When you set the security switch to ON, you must specify the WWN of the host bus adapter.
When registering a host, you can assign a nickname to the host bus adapter. If you assign a
nickname, you will be able to easily identify each host bus adapter in the LUN Manager window.
Although WWNs are also used to identify each host bus adapter, the nickname that you assign
will be more helpful because you can name host bus adapters after the host installation site or the
host owners.
Defining Fibre Channel LU Paths 37