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In our case, we have only one array, so functionally there is no difference. A global hot spare can then be allocated to any array on the node. Hot spares can either be allocated to a specific array (when you have two or more), or it can be a "global" hot spare (GHS). The MegaCli command line utility can be used to locate a physical disk in an LSI raid array by blinking the disks activity LED.
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In this way, the array returns to a fully operational state with minimal time in a degraded state.
#Drives all listed as lsi megasr driver#
This is done by checking that MegaRAID Storage Manager (MSM) provides the expected driver version running on the controller. Verify that the new megasas2.sys driver is associated with the storage adapter device. Roughly 30% of the disk performance is allocated for this background initialization.Ī "hot spare" is a drive physically in a node that is configured to automatically replace a drive that is in an array that fails. The Storport miniport is listed as the plug and play controllers. Until this is complete, disk performance will be degraded. Well the first command /fixmbr took like 2 seconds to be done and said it completed successfully. This is because, after the initial initialization is complete, a full background initialization is performed. From the above output, it is clear that I have RAID 10 viraul device made of 5 disk partitions as follows: md125 RAID device file name. Type the following cat command: cat /etc/nf. You will also note that the drives will have their activity LEDs blink for some time. The /proc/mdstat is a special file that stores essential information about all presently active RAID devices. Fujitsu M1 - BIOS - EP420i - MegaRAID Configuration Utility - Array Built.ĭo note that the ' Operation: Back Init.