昨天，连接到 Adaptec 5405 的 RAID 1 镜像中的一个磁盘坏了，被新磁盘替换了，但重建大约 2 小时后阵列离线。主机工作人员更新了控制器上的固件并强制阵列重新上线。系统正常启动并arcconf getconfig 1显示以下输出：
Controllers found: 1
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Controller information
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Controller Status : Optimal
Channel description : SAS/SATA
Controller Model : Adaptec 5405
Controller Serial Number : 1D091194BC6
Physical Slot : 18
Temperature : 85 C/ 185 F (Normal)
Installed memory : 256 MB
Copyback : Disabled
Background consistency check : Disabled
Automatic Failover : Enabled
Global task priority : High
Performance Mode : Default/Dynamic
Stayawake period : Disabled
Spinup limit internal drives : 0
Spinup limit external drives : 0
Defunct disk drive count : 0
Logical devices/Failed/Degraded : 1/0/1
SSDs assigned to MaxCache pool : 0
Maximum SSDs allowed in MaxCache pool : 8
MaxCache Read Cache Pool Size : 0.000 GB
MaxCache flush and fetch rate : 0
MaxCache Read, Write Balance Factor : 3,1
NCQ status : Enabled
Statistics data collection mode : Enabled
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Controller Version Information
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BIOS : 5.2-0 (18948)
Firmware : 5.2-0 (18948)
Driver : 1.1-7 (28000)
Boot Flash : 5.2-0 (18948)
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Controller Battery Information
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Status : Not Installed
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Logical device information
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Logical device number 0
Logical device name :
RAID level : 1
Status of logical device : Degraded
Size : 953334 MB
Read-cache mode : Enabled
MaxCache preferred read cache setting : Enabled
Write-cache mode : Disabled (write-through)
Write-cache setting : Disabled (write-through)
Partitioned : Yes
Protected by Hot-Spare : No
Bootable : Yes
Failed stripes : No
Power settings : Disabled
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Logical device segment information
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Segment 0 : Present (Controller:1,Connector:0,Device:1) 9VP3AGB1
Segment 1 : Rebuilding (Controller:1,Connector:0,Device:0) Z1D49LKS
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Physical Device information
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Device #0
Device is a Hard drive
State : Rebuilding
Supported : Yes
Transfer Speed : SATA 3.0 Gb/s
Reported Channel,Device(T:L) : 0,0(0:0)
Reported Location : Connector 0, Device 0
Vendor :
Model : ST1000DM003-9YN1
Firmware : CC4H
Serial number : Z1D49LKS
Size : 953869 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off,Reduced rpm
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
NCQ status : Enabled
Device #1
Device is a Hard drive
State : Online
Supported : Yes
Transfer Speed : SATA 3.0 Gb/s
Reported Channel,Device(T:L) : 0,1(1:0)
Reported Location : Connector 0, Device 1
Vendor :
Model : ST31000528AS
Firmware : CC38
Serial number : 9VP3AGB1
Size : 953869 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
NCQ status : Enabled
和aacraid-status
-- Controller informations --
-- ID | Model | Status
c0 | Adaptec 5405 | Optimal
-- Arrays informations --
-- ID | Type | Size | Status | Task | Progress
c0u0 | RAID1 | 953G | Degraded | Rebuild | 44%
-- Disks informations
-- ID | Model | Status
There is at least one disk/array in a NOT OPTIMAL state.
驱动器＃1的smartctl显示它处于故障前状态：
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 114 099 006 Pre-fail Always - 69962026
3 Spin_Up_Time 0x0003 095 094 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 93
5 Reallocated_Sector_Ct 0x0033 002 002 036 Pre-fail Always FAILING_NOW 4015
7 Seek_Error_Rate 0x000f 083 060 030 Pre-fail Always - 222073391
9 Power_On_Hours 0x0032 073 073 000 Old_age Always - 24485
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 72
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 006 006 000 Old_age Always - 94
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 1507556589923
189 High_Fly_Writes 0x003a 095 095 000 Old_age Always - 5
190 Airflow_Temperature_Cel 0x0022 059 051 045 Old_age Always - 41 (Min/Max 40/41)
194 Temperature_Celsius 0x0022 041 049 000 Old_age Always - 41 (0 19 0 0)
195 Hardware_ECC_Recovered 0x001a 045 028 000 Old_age Always - 69962026
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 202082506249469
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1020514404
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 590957029
并且阵列再次重建失败并且处于离线状态。
现在让该系统重新上线的最佳方法是什么？
答案1
根据智能 - 驱动器可能处于故障状态，尝试再次重建，如果重新分配的扇区数量增加 - 这肯定是坏事。
ST1000DM003 不是受支持的驱动器 -查看兼容性报告，此外，根据我的经验，这些驱动器存在一些固件/兼容性问题。
总体而言，Adaptec 5系列在兼容性方面存在很大问题，在某些情况下，解决方法是直接连接驱动器，而不使用背板，在某些情况下，当驱动器切换到1.5 gbps（驱动器跳线）时，它们会停止故障。
使用兼容性列表中的驱动器，并且不要忘记升级驱动器固件。
ps 您已在驱动器上启用了写缓存，但在控制器上禁用了写缓存。