EVA4000 XCS DOWNLOAD

The groups for which the array is a source can either be suspended or not suspended. Host and application timeouts should be considered when doing online controller upgrades. Verify multipath software is configured correctly see http: Considerations for systems using HP StorageWorks Continuous Access EVA In a Continuous Access environment, the management appliance is often connected on the fabric between the source and destination arrays, where one array is considered to be local to the management appliance. In a Continuous Access environment, online upgrades may be done while replicating data.

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If the demand on the array was at an acceptable level, the team proceeded with the upgrade. All other replication groups are not fva4000 to be suspended when performing the EVA firmware online upgrade.

For detailed information, see http: These pauses are repeated two to three times as the workload is failed over between the controllers and then back to the original configuration.

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This reduces the probability that the resync on the destination impacts workload on the host. Firmware is copied to flash memory. Again this reduced the overall downtime for TelecomX and allowed the highest levels of data availability.

In subsequent upgrades, the team added the verification of failover paths to the preparation process and the problem was eliminated. That is, management commands do not need to be passed across the interswitch links ISLs. Application support for online controller firmware upgrades Applications are typically insulated from the online controller firmware upgrade by the operating system and HBA driver software.

Asynchronous replication Replication does not need to be suspended. This customer was one of the first to note the lack of online controller firmware upgrades from XCS V5. Hosts as well as applications can remain running. Those guidelines are the basis of the procedures in this paper. Each replication group can be evaluated separately using the following table where the Continuous Access source and Continuous Access destination refer to the array doing the online download.

EVA Top 10 Problem. The remaining paths are in standby mode. Under heavy workloads the process of doing the controller firmware upgrade can be extended beyond the timeouts expected by Command View EVA for the completion of the upgrade process.

Persistent reservations are not supported. Verify that online controller firmware upgrades are supported for this particular eva4000. To check array performance, it is best to collect EVAPerf data over a period of time. HP-UX Operating systems timeout values specifications: These guidelines were chosen to be very conservative to help ensure the highest probability of success.

Immediately before the online controller firmware upgrade, verify that the array is operating in an optimal state no warnings or critical failures and resolve any issues indicated by the array. At the time of the upgrade, the team monitored array throughput to eeva4000 that the workload was within the acceptable guidelines.

First is the ability of the array to process the upgrade in parallel with host requests.

Verify that host and applications are available. That controller firmware upgrade was performed at 4 PM during a business day after very careful review of that EVA to evaluate the demand on the array at the time of the upgrade.

EVA Online XCS Firmware Upgrades_百度文库

These key applications have been tested wva4000 the Customer Focused Test team and have been tolerant of an online controller firmware upgrade. For the EVA it is helpful to understand the ways in which workloads affect the success of the online upgrades. The division that was recently visited had been using online upgrades as its preferred method of controller upgrades for a number of releases.

Test failover between paths? For example, if the EVA being upgraded is the destination for one or more synchronous replication groups, then the synchronous evaa4000 groups must be suspended before the upgrade. To do online upgrades, it may be desirable to shut down the single application that is generating the workload as opposed to doing an offline upgrade. The support team started by initiating contact with the lab.

Online controller firmware upgrades are supported with Linux boot devices. When asked about its experiences, the division indicated that online controller firmware upgrades work in its environment and they where part of all of their upgrade plans.