HP 3PAR Manual do Utilizador descarregar pdf (Página 51)

3. Make a backup copy of /etc/vmware/esx.conf.

cp /etc/vmware/esx.conf /etc/vmware/esx.conf.orig

4. Identify the QLogic HBA module that is currently loaded.

vmkload_mod -l | grep qla2300

Depending on the model of the HBA, the module can be one of the following:

qla2300_707 (ESX 3.0.x)

qla2300_707_vmw (ESX 3.5)

5. The target port queue depth can now be modified via the service console command line using

VMware supplied binaries.

The example shows the qla2300_707 module. Use the appropriate module based on the

outcome of Step 4.

esxcfg-module -s ql2xmaxqdepth=42 qla2300_707

esxcfg-boot –b

The server must now be rebooted for the changes to take effect.

6. Reboot the ESX host.

Upon boot up, the ESX host will now be throttled to a maximum of 42 outstanding commands

(as per the example in Step 5) to the target (HP 3PAR StoreServ Storage port).

NOTE: For additional information on changing the queue depth for HBAs, refer to the

VMware Fibre Channel SAN Configuration Guide.

ESX/ESXi 4.1, ESXi 5.x Additional Feature Considerations

ESX/ESXi 4.1 and ESXi 5.x introduce new features related to storage I/O control and integration

with storage arrays. HP recommends the usage of features SIOC and vStorage APIs for Array

Integration (VAAI) with ESX/ESXi 4.1, ESXi 5.x - HP 3PAR StoreServ Storage configurations.

NOTE: This section about VAAI and new additional features applies to all connectivity types:

FC, FCoE and iSCSI.

Storage I/O Control

The SIOC feature allows for a new level of monitoring and control of I/O from individual virtual

machines to an HP 3PAR StoreServ Storage array at the datastore level and across ESX/ESXi hosts

in a VMware cluster.

Further information regarding the SIOC feature and considerations for its deployment may be

found in the VMware technical white paper, Storage I/O Control Technical Overview and

Considerations for Deployment:

http://www.vmware.com/files/pdf/techpaper/VMW-vSphere41-SIOC.pdf

vStorage APIs for Array Integration (VAAI)

In partnership with VMware, HP has developed an ESX/ESXi 4.1 plugin that enables a new set

of SCSI commands to be used by ESX/ESXi 4.1 in conjunction with HP 3PAR StoreServ Storage.

VMware refers to this newly incorporated set of SCSI commands as the "primitives".

ESX/ESXi 4.1, ESXi 5.x Additional Feature Considerations 51

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HP 3PAR Manual do Utilizador Página 51