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Document Version Release Date Details 2 11/06/2017 Updated resolution with permanent fix, SA firmware 3.00 (or later) 1 10/14/2015 Original document release On a ProLiant server configured with certain Smart Array Controllers, write storage performance for RAID 1 logical drives may be significantly better on the server after a warm boot as compared to performance after a cold boot. This issue is more likely to occur as the logical drive size increases. A cold boot refers to removing power from the system by physically pressing the power button to turn it off and then pressing the power button again to turn it back on. A warm boot refers to a server reset; for example, by using the CTRL+ALT+DELETE function. For example, during testing using 24x 1.2TB HDDs configured as a single RAID 1 logical drive, there was approximately 1800 MB/s after a warm boot and approximately 1100 MB/s after a cold boot. With fewer drives, the overall performance was lower but similar - with 14x 1.4 TB drives configured as a single RAID 1 logical drive, warm boot write performance was approx 760 MB/s and with a cold boot, write performance was approximately 550MB/s. In general, the potential exists for approximately a 30 percent increase in performance after performing a warm boot.
Any ProLiant server configured with any of the Smart Array Controllers listed below and running Smart Array Controller Firmware Version 2.52 (or earlier): HPE H240 Smart Host Bus Adapter HPE H240ar Smart Host Bus Adapter HPE H240nr Smart Host Bus Adapter HPE H244br Smart Host Bus Adapter HPE H241 Smart Host Bus Adapter HPE Smart Array P240nr Controller HPE Smart Array P244br Controller HPE Smart Array P246br Controller HPE Smart Array P440 Controller HPE Smart Array P440ar Controller HPE Smart Array P441 Controller HPE Smart Array P741m Controller HPE Smart Array P840 Controller HPE Smart Array P841 Controller HPE Smart Array P542D Controller
Smart Array Controller firmware 3.00 (or later) will correct this issue. Click the following link: https://support.hpe.com/hpesc/public/home> Enter a product name (e.g., "DL380 Gen9") in the text search field and wait for a list of products to populate. From the products displayed, identify the desired product and click on the Drivers & software icon to the right of the product. From the Drivers & software dropdown menus on the left side of the page: Select the Software Type - Firmware Select the Software Sub Type - Storage Controller Select the specific Operating System from the Operating Environment. Select the latest release of Smart Array Controller firmware for the specific OS environment. Note: To ensure the latest version will be downloaded, click on the Revision History tab to check if a new version of the firmware/driver is available. Click Download . As a workaround, make sure to warm boot the server immediately after a cold boot is performed if the server is configured with any of the Smart Array controllers listed in the Scope section above. RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively via e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL: Proactive Updates Subscription Form. NAVIGATION TIP : For hints on navigating HPE.com to locate the latest drivers, patches, and other support software downloads for ProLiant servers and Options, refer to the Navigation Tips document .
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