Dell OpenManage Server Administrator Version 5.1 Manual de usuario descargar pdf (Pagina 151)

Using the Storage Management Service 151

[writepolicy=<wb| wt| wc| nwc>] Parameter (Optional)

Different controllers support different write policies. See the online help for more information. The

following table indicates how to specify the [writepolicy=<wb| wt| wc| nwc | fwb>] parameter for

each of the write policies.

[name=<string>] Parameter (Optional)

Use this parameter to specify a name for the virtual disk. For example:

name=VirtualDisk1

NOTE: The CERC SATA 1.5/2s controller does not allow you to specify a virtual disk name. The virtual disk will be

created with a default name.

[spanlength=<n>] Parameter (Required for RAID 50)

Use this parameter to specify the number of physical disks to be included in each stripe.

This parameter

only applies to RAID 50 virtual disks. If you are not creating a RAID 50 virtual disk, do not specify this

parameter. For example:

spanlength=3

Table 8-20. Read Policy Paramaters

Read Policy readpolicy=ra | ara | nra | rc | nrc

Parameter Specification

Read ahead readpolicy=ra

Adaptive read ahead readpolicy=ara

No read ahead readpolicy=nra

Read cache readpolicy=rc

No read cache readpolicy=nrc

Table 8-21. Write Policy Parameters

Write Policy writepolicy=wb | wt | wc | fwb | nwc

Parameter Specification

Write–back cache writepolicy=wb

Write–through cache writepolicy=wt

Write cache writepolicy=wc

Force write back writepolicy=fwb

No write cache writepolicy=nwc

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Dell OpenManage Server Administrator Version 5.1 Manual de usuario Pagina 151