HP StorageWorks 1000 HP StorageWorks 1000 Modular Smart Array reference guide - Page 15
Hot-Pluggability, Hard Drives, Power Supply/Blower Assembly, MSA1000 Controller - modular smart array maintenance
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Introduction Hot-Pluggability Hot-pluggability allows components to be removed and replaced without powering down the MSA1000. The following MSA1000 hardware components are hot-pluggable: Hard Drives-Failed drives in fault-tolerant configurations can be replaced without interrupting system operation. Data on the failed drive is restored automatically to the replacement drive online. Power Supply/Blower Assembly-Redundant power supplies allow you to remove one power supply and replace it without interrupting system operation. The assembly includes one variable speed blower for each power supply. If one of the blowers in the assembly fails, the other blower automatically operates at a higher speed. A blower can be removed and replaced without removing the assembly. MSA1000 Controller-If your system has two controllers and one controller fails, you can remove the failed controller. See the HP StorageWorks 1000 Modular Smart Array Maintenance and Service Guide for specific limitations. Fibre Channel I/O Module-The Fibre Channel I/O Module is a single-port, hot-pluggable 1-Gb/2-Gb Fibre Channel device that includes a 2-Gb Small Form Factor Pluggable Transceiver (SFP) port. This module can be removed and replaced with other interconnect options, such as the MSA SAN Switch 2/8 or the MSA Hub 2/3. MSA SAN Switch 2/8-The MSA SAN Switch 2/8 is an optional, hot-pluggable I/O device designed to replace the single port Fibre Channel I/O Module that comes standard with the MSA1000. This switch includes 8-ports, featuring 2 Gb/s full duplex non-blocking performance on all ports. One port is internal to the switch, leaving 7 available external ports. MSA Hub 2/3-The MSA Hub 2/3 is an optional, hot-pluggable I/O device designed to replace the single port Fibre Channel I/O Module that comes standard with the MSA1000. This hub provides an inexpensive and easy way for a clustered pair of servers to access the storage controller (using an arbitrated-loop configuration), without having to buy an external hub or switch. Two SFP ports are presented to the user, while a third, internal port accesses the controller. HP StorageWorks 1000 Modular Smart Array Reference Guide 15