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Configuring a RAID Group Hot Spare | QTS 5. 0. x - QNAP Systems Assigning a hot spare gives extra protection against data loss In normal conditions, a hot spare disk is unused and does not store any data When a disk in the RAID group fails, the hot spare disk automatically replaces the faulty disk QTS copies the data to the spare disk in a process called RAID rebuilding
Hot Spares - techdocs. broadcom. com Hot spares let you replace failed drives without a system shutdown or user intervention The MegaRAID RAID controllers can implement automatic and transparent rebuilds of failed drives using hot spare drives, which provide a high degree of fault tolerance and zero downtime The RAID management software lets you specify drives as hot spares
RAID Tip 5 of 10 - Hot Spares Hot spares are a good addition to a fault-tolerant array They greatly reduce the impact of monitoring on the array reliability If a drive has failed in a fault-tolerant (RAID 1, RAID 10, RAID 5, or RAID 6) array, a vulnerability window opens If another drive fails during this vulnerability window, the data is lost
How Hot Spare Disk Works in Distributed RAID 5 The short answer is that Distributed RAID stripes the data in packs across the pool of all drives in a manner such that every drive has data and spare block capacity
Hot Spare or a Hot Mess - SMB IT Journal Most people approach the warm spare concept as a means of mitigating the high risk of secondary drive failure on a parity RAID 5 array RAID 5 arrays protect only against the failure of a single disk within the array
Types of Hot Spares - storage-system. fujitsu. com When a drive fails and no unused Dedicated Hot Spares are available, a Global Hot Spare is used When an Advanced Format disk is used as a hot spare, the sector format information that can be confirmed on the server may change when used as a hot spare
Raid 5 with hot spare or RAID 10 with no hot spare? - Server Fault I have four drives left to configure, and I can either set them up as a RAID 5 and dedicate a hot spare, or a RAID 10 with no hot spare The size of each will be the same, and the RAID 5 will offer enough performance
Overview of Hot Spares and Hot Spare Pools (Solaris Volume Manager . . . Hot spares provide protection from hardware failure because slices from RAID 1 or RAID 5 volumes are automatically replaced and resynchronized when they fail The hot spare can be used temporarily until a failed submirror or RAID 5 volume slice can be either fixed or replaced