EMC VNX VG2/VG8 Gateway Configuration Setup Guide
130
Configure the boot array
EMC CONFIDENTIAL
5. If you cannot enable Access Logix, verify that the array’s base software package is
committed.
Note: If the base package is committed and you still cannot enable Access Logix, or if the
array software versions are not current, use the nondisruptive upgrade (NDU) procedure
to install the required packages. The VNX array documentation provides more information
on the NDU procedure.
Use the following command to commit software packages, where <package> is the
list of software packages that must be committed:
Note: Do not commit the software package without the customer’s permission.
# navicli -h <SP A_IP_address> ndu -commit <package>
6. Go to “Step 4: Verify VNX array read and write cache settings” on page 130.
Step 4: Verify VNX array read and write cache settings
Do not change the read and write cache settings of an existing array without the
customer's permission. If the VNX is connected to other hosts, disabling the array
read and write cache will impact the other hosts connected to the VNX.
If you have a Symmetrix array instead of a VNX array, do not perform this step.
Verify that read and write cache is enabled on the VNX SPs; otherwise, the VNX
gateway installation will fail.
The installation will also fail if:
◆ Any LUNs visible to the VNX gateway are trespassed.
◆ Read or write cache is disabled on any LUN visible to the VNX gateway.
◆ Any LUNs visible to the VNX gateway are faulted for any reason.
◆ Any LUNs visible to the VNX gateway are unowned.
The optimal write cache setting depends on all of the hosts and applications that are
using the VNX array, and is beyond the scope of this setup guide. The engineering
white paper EMC CLARiiON Best Practices for Fibre Channel Storage explains how to
calculate the read and write cache settings. This document is available from the
Powerlink website at:
http://Powerlink.EMC.com
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