3Ware 9550SXU-16ML User Guide - Page 171
Removing a Drive, Remove Drive
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Removing a Drive The drive will appear in the list of available drives. You can now use it in a new RAID configuration, or as a replacement drive in the event that another drive degrades. If you want to use this drive as a spare, see "Creating a Hot Spare" on page 135. Removing a Drive If you have a hot-swap carrier and want to physically remove a drive from your system without powering it down, you must first remove it through the 3ware software. This is required for 3ware controllers before the 9550SX model, and recommended for the 9550SX models. This is useful if you know that a drive is developing a problem and you want to replace it, or to replace a drive which has already failed. Warnings: Physically removing a drive that is not in a hot swap carrier can result in a system hang or may even damage the system and the drive. The steps below will destroy any information that identifies this drive as part of a RAID unit. Existing data on this drive will no longer be available. Notes: If you want to remove a unit from your system and reassemble it in another system, do not follow these steps. Instead, turn to "Removing a Unit" on page 154. If you unplug a drive on a 9500S controller without first removing it through 3DM or 3BM, the controller will not recognize it as gone. Always use the Remove Drive command to remove a drive before unplugging it. If you unplug a drive on a 9550SX controller without first removing it in 3DM, it will be listed as removed, however it will not be completely removed unless you Rescan the controller. www.3ware.com 161