Hba category, Connectionname, Hba_ww_id – HP Linux Server Management Software User Manual

Page 47: Hostmode

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Toolkit utilities 47

For RAID 5 arrays, the maximum stripe size in most cases is 256 KB, but old controller models are often

limited to 64 KB.

For RAID 6 arrays, the maximum stripe size is either 64 KB or 256 KB, depending on the controller.

The default stripe size value depends on the action mode.

In Configure action mode, the default value is determined by the RAID level that you specified earlier in
the script. (In some cases, it also depends on the ACU version, the controller model, and the controller

firmware version).

o

For RAID 0, RAID 1, or RAID 1+0, the default value is 128 KB.

o

For RAID 5, the default value is usually 64 KB, but on some controller models it is 16 KB or 128 KB.

o

For RAID 6, the default value is usually 16 KB, but on some controller models it is 64 KB or 128 KB.

In Reconfigure action mode, the default value for this option is the stripe size that is already configured
for the logical drive. If you enter a value that is different from the existing stripe size, ACU attempts to

migrate the logical drive to the stripe size that you specify. (If you intend to migrate the logical drive,
back up all data before starting the migration procedure.)

HBA category

The HBA category has the following options:

ConnectionName (on page

47

)

HBA_WW_ID (on page

47

)

HostMode (on page

47

)

ConnectionName

This option is a user-defined string used as the connection name for the specified HBA.
The string can consist of:

A maximum of 16 characters

Embedded space characters but cannot end with a space character

Any of the following characters: a–z, A–Z, 0–9, !, @, #, *, (, ), -, _, +, :, ., /, and [space]

HBA_WW_ID

This option specifies which HBA, based on its assigned WWN, is modified by the configuration changes.

HostMode

This option specifies the HostMode for a selected HBA. Setting the Host Mode optimizes the storage array for

the selected operating system. The available host modes for an HBA are device-specific. Not all modes are
available on all devices. Not all HBAs support a HostMode.
The following operating system options might be available:

Default

Microsoft® Windows®

OpenVMS

Tru64

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