3Ware 9550SXU-16ML User Guide - Page 104
Unit Names
UPC - 693494971606
View all 3Ware 9550SXU-16ML manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 104 highlights
Chapter 6. 3ware Disk Manager (3DM 2) available.) When this policy is set, ECC errors are ignored when they are encountered during a rebuild. When this policy is not set, a rebuild will abort upon encountering an ECC error and the unit will be set back to Degraded. Since this option could result in the loss of some source data in the event of source errors, select this option only if you want to ensure that a rebuild will complete successfully without manually intervention. If the rebuild fails and Continue on Source Error During Rebuild is not selected, then you have the option to start a rebuild manually. It is recommended that a file system check be executed when the rebuild completes. Note: The policy Continue on Source Error During Rebuild is equivalent to the "Force continue on source errors" option in 3DM v 1.x and the "ignoreEcc" option in the CLI. Queuing. This policy enables or disables Native Command Queuing (NCQ) for drives in the unit. By default, queuing is enabled. You can disable it, if desired. NCQ only operates when the feature is enabled at both the drive and the controller. If a drive does not support NCQ, the policy setting for the controller is ignored. Enabling NCQ can improve performance in many applications; it causes command reordering to be done on the drive, itself. StorSave Profile. The 9550SX, like the 9500S, supports StorSave. For the 9550SX, StorSave II includes an option that lets you change the StorSave Profile used for a unit. Three profiles are available: Protection, Balanced, and Performance. These profiles automatically adjust several different factors that affect protection and performance, including whether FUA (Forced Unit Access) is honored, whether Write Journaling is enabled, and whether Disable Cache on Degrade is enabled. For additional information, see "Setting the StorSave Profile for a Unit" on page 139. Note: If the write cache setting is disabled for a unit, the StorSave Profile capability does not apply and is automatically disabled. Unit Names On 9000-series controllers, units can be assigned names. A name can be assigned when the unit is created and can be changed from this screen. For additional information, see "Naming a Unit" on page 149. 94 3ware 9550SX Serial ATA RAID Controller User Guide