更换EMC损坏的磁盘以后，盘阵会自动开始把hot spare备份的数据恢复过来。然后把启用的hot spare盘恢复到初始备用状态。我们可以通过命令来观察这一过程，首先看新换上来的硬盘，注意此时的状态为Equalizing，也就是正在进行平衡的过程:# navicli -h 172.16.9.5 getdisk 1_0_1
Bus 1 Enclosure 0 Disk 1
Vendor Id: SEAGATE
Product Id: ST373307 CLAR72
Product Revision: 7A0A
Lun: 6
Type: 6: RAID5
State: EqualizingHot Spare: 6: NO
Prct Rebuilt: 6: 100
Prct Bound: 6: 100
Serial Number: 3HZ6TL7F
Sectors: 139681792 (68204)
Capacity: 68238
Private: 6: 69704
Bind Signature: 0x5cf2, 0, 1
Hard Read Errors: 0
Hard Write Errors: 0
Soft Read Errors: 0
Soft Write Errors: 0
Read Retries: N/A
Write Retries: N/A
Remapped Sectors: N/A
Number of Reads: 980562
Number of Writes: 1107168
Number of Luns: 1
Raid Group ID: 3
Clariion Part Number: DG118032459
Request Service Time: N/A
Read Requests: 980562
Write Requests: 1107168
Kbytes Read: 99788880
Kbytes Written: 70098518
Stripe Boundary Crossing: 2704586此时hot spare盘的状态为Enabled,其替代的硬盘为:1_0_1