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under high I/O loads.

The single X controller is the only connection to the HP e3000 supported. We recommend that you purchase the second Y controller to avoid total controller failure. The second controller will be able to take over when swapped into place because it maintains a copy of the current firmware and disk maps. If your 12H contains 12-18Gb disk drives, we recommend configuring each of the LUNs for 11Gb of storage.

This configuration has given the best performance versus capacity. This capacity allows for RAID1 and available space for two hot spare disks. Total capacity of the LUNs should not exceed 90Gb to ensure optimum performance.

We also recommend that you set Data Resiliency Mode “Normal.” However, some users have reported very slow Restore speeds with Normal mode. To correct this problem, set the Data Resiliency Mode to “Performance

Mode” only during the restore. Remember to reset the mode back to Normal when your large restore is completed.

Set Rebuild Priority to High. This may cause some degradation in your online transaction response times (probably not noticeable), but will reduce the likelihood of encountering a disk mechanical failure while the system is still recovering from a previous disk mechanical failure.

We hope this information helps you to improve your confidence in your system. For additional information or questions, contact us. Resource3000 is dedicated to ensuring the continuation of your significant investment in the HP3000 platform.

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You’re the EXPERT!

With our inaugural issue of the Resource 3000 Newsletter, we welcome you to “You Are The Expert!” Each month we will pose a technical question – hardware, software, application, performance, or operating system. We invite you to send us your answer to the question. Those who provide the correct answer will be included in a drawing for a “memorable prize” to be determined each month. Some months we’ll pose more challenging questions, and some months you’ll find questions most system managers can answer easily. This is your chance to demonstrate your expertise! The winner may, at his or her discretion, have a short profile included in the next month’s issue of “You Are The Expert!”

This month’s question:

What procedure would you use to install and fully enable a new network printer without having to reboot the system?

Good luck. We hope you can show us that you are the expert and win our “memorable prize”.   Resource 3000 - NEWS - Issue No. 1 - JANUARY 2005