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EMC 错了么?
作者：
eygle |【转载时请务必以超链接形式标明文章
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http://www.eygle.com/archives/2006/01/emc_replace_disk.html
昨天我写到EMC Soft/Hard Read/Write Errors,说EMC建议更换硬盘,可是关于哪一块硬盘产生了分歧.在EMC的Case里,美国专家建议:
Replace drive 0_1_C if not replaced earlier.
因为硬盘编号从0开始C=12,所以我以为应该换的是0_1_13号硬盘,而0_1_13号硬盘也确实是出现错误的一块.可是EMC的现场工程师说0_1_C=0_1_12应该更换0_1_12号硬盘.而0_1_12号一直是没有出现过问题的:
# navicli -h 172.16.9.5 getdisk 0_1_12
Bus 0 Enclosure 1 Disk 12
Vendor Id: SEAGATE
Product Id: ST314680 CLAR72
Product Revision: 7A0A
Lun: 19
Type: 19: RAID5
State: Enabled
Hot Spare: 19: NO
Prct Rebuilt: 19: 100
Prct Bound: 19: 100
Serial Number: 3HY6TKCA
Sectors: 139681792 (68204)
Capacity: 68238
Private: 19: 69704
Bind Signature: 0x13cf, 1, 12
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: 209288064
Number of Writes: 12913664
Number of Luns: 1
Raid Group ID: 11
Clariion Part Number: DG118032458
Request Service Time: N/A
Read Requests: 209288064
Write Requests: 12913664
Kbytes Read: 1454635954
Kbytes Written: 245519280
Stripe Boundary Crossing: 110585780
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结果EMC工程师严格按照建议,更换了0_1_12号硬盘,然后就是热备盘启用:
# navicli -h 172.16.9.5 getdisk 0_0_14
Bus 0 Enclosure 0 Disk 14
Vendor Id: SEAGATE
Product Id: ST373307 CLAR72
Product Revision: 7A10
Lun: 101
Type: 101: Hot Spare
State: Rebuilding
Hot Spare: 101: YES
Hot Spare Replacing: 0_1_12
Prct Rebuilt: 101: 100
Prct Bound: 101: 100
Serial Number: 3HZ9E674
Sectors: 139681792 (68204)
Capacity: 68238
Private: 101: 69704
Bind Signature: 0x80bd, 0, 14
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: 211913765
Number of Writes: 13028867
Number of Luns: 1
Raid Group ID: 101
Clariion Part Number: DG118032459
Request Service Time: N/A
Read Requests: 211913765
Write Requests: 13028867
Kbytes Read: 1515830696
Kbytes Written: 247873115
Stripe Boundary Crossing: 0
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然后再写回到原盘(Netapp的Host Spare盘是可以漂移的,这个功能很好):
# navicli -h 172.16.9.5 getdisk 0_1_12
Bus 0 Enclosure 1 Disk 12
Vendor Id: SEAGATE
Product Id: ST373307 CLAR72
Product Revision: 7A10
Lun: 19
Type: 19: RAID5
State: Equalizing
Hot Spare: 19: NO
Prct Rebuilt: 19: 100
Prct Bound: 19: 100
Serial Number: 3HZ9ZHWN
Sectors: 139681792 (68204)
Capacity: 68238
Private: 19: 69704
Bind Signature: 0x13cf, 1, 12
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: 1101110
Number of Writes: 2422153
Number of Luns: 1
Raid Group ID: 11
Clariion Part Number: DG118032459
Request Service Time: N/A
Read Requests: 1101110
Write Requests: 2422153
Kbytes Read: 145361639
Kbytes Written: 142834423
Stripe Boundary Crossing: 112102090
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看来我需要继续跟进这个CASE来确认这个问题了.
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By eygle on 2006-01-10 12:46 |
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