HP D3600 Enclosure User Manual download pdf (Page 24)

After the rebuild of the data onto the spare is completed, when a replacement drive is inserted to

replace the failed drive, the system will automatically transfer the data from the spare onto the

replacement drive and return the spare to an available-spare state. It is important to note that the

process of rebuilding the spare or the replacement drive must not be interrupted or the process will

be aborted.

Some administrators have multiple spare disks, so that multiple arrays can experience failure and

successfully recover, before administrative intervention would be required to replace the spare or

failed disk. When assigning a spare to an array, the administrator chooses which arrays and how

many arrays are protected by that spare.

Array sizing

As a general rule, the greater the number of drives that are included in an array, the greater the

performance level that can be achieved. However, performance considerations are offset by fault

tolerance considerations. The greater the number of drives in an array, the higher the probability

of one or more disk failures in that array. The administrator must strike a balance between

performance and fault tolerance.

24 Installation

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 68 69

No comments

HP D3600 Enclosure User Manual Page 24