VPLEX:由於儲存陣列的 scsi 檢查條件 B/44/00,儲存磁碟區處於嚴重故障狀態

Summary: 由於來自底層儲存陣列的 scsi 感知代碼 B/44/00,VPLEX 會將磁碟標記為失效。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

VPLEX 儲存磁碟區處於嚴重故障狀態,而基礎磁碟區在陣列端狀況良好。

CLI 命令的範例輸出: ll /clusters/cluster-1/storage-elements/storage-volumes/<storage-volume name>

VPlexcli:/> ll /clusters/cluster-1/storage-elements/storage-volumes/Symm1234_0000

/clusters/cluster-1/storage-elements/storage-volumes/Symm1234_0000:
Name                           Value
-----------------------------  ------------------------------------------------
application-consistent         false
block-count                    65798400
block-size                     4K
capacity                       251G
description                    -
free-chunks                    []
health-indications             [hardware dead]
health-state                   critical-failure <<--
io-status                      dead
itls                           0x50001442607de710/0x5000097378028844/80,
                               0x50001442607de710/0x50000973780288c4/80,
                               0x50001442607de711/0x5000097378028844/80,
                               0x50001442607de711/0x50000973780288c4/80,
                               0x50001442707de710/0x5000097378028844/80,
                               0x50001442707de710/0x50000973780288c4/80,
                               0x50001442707de711/0x5000097378028844/80,
                               0x50001442707de711/0x50000973780288c4/80,
                               0x50001442a0100410/0x5000097378028844/80,
                               0x50001442a0100410/0x50000973780288c4/80, ...
                               (16 total)
largest-free-chunk             0B
locality                       -
operational-status             error
provision-type                 legacy
storage-array-name             EMC-SYMMETRIX-XXXXXXXXX
storage-volumetype             normal
system-id                      VPD83T3:60000097000000000000000000000000
thin-capable                   false
thin-rebuild                   true
total-free-space               0B
underlying-storage-block-size  512
use                            unusable
used-by                        [extent_Symm1234_0000_1]
vendor-specific-name           EMC

儲存磁碟區處於 嚴重故障 狀態

VPlexcli:/> storage-volume summary
SUMMARY (cluster-1)
StorageVolume Name                        IO Status  Operational Status  Health State
----------------------------------------  ---------  ------------------  ----------------
Symm1234_0000                             dead       error               critical-failure <<--

Dial Home 的摘錄示例,突出顯示了死亡的邏輯單元:

                  <EventData><![CDATA[disk VPD83T3:60000970000000000000000000000000: disk died, no mirror exists

如果此儲存磁碟區不是分散式裝置的一部分,則主機將無法存取此虛擬磁碟區,從而導致資料不可用性的情況。

VPlex 韌體記錄顯示串流 SCSI/27 事件與 ASC 0x44 ascq 0x0 (B/44/00) 0xb asc 傳回 內部目標故障

來自 firmware.log 的 SCSI/27 例項範例

128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298782:<6>2016/11/11 06:50:57.94: scsi/27 tgt VPD83T3:60000097000000000000000000000000 cmd 0x2a status 0x2 valid 0 resp 0x70 seg 0x0 bits 0x0 key 0xb info 0x0 alen 10 csi 0x0 asc 0x44 ascq 0x0 fru 0x0 sks 0x0
128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298783:<6>2016/11/11 06:50:58.00: scsi/27 tgt VPD83T3:60000097000000000000000000000000 cmd 0x2a status 0x2 valid 0 resp 0x70 seg 0x0 bits 0x0 key 0xb info 0x0 alen 10 csi 0x0 asc 0x44 ascq 0x0 fru 0x0 sks 0x0
128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298784:<6>2016/11/11 06:50:58.16: scsi/27 tgt VPD83T3:60000097000000000000000000000000 cmd 0x2a status 0x2 valid 0 resp 0x70 seg 0x0 bits 0x0 key 0xb info 0x0 alen 10 csi 0x0 asc 0x44 ascq 0x0 fru 0x0 sks 0x0
128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298785:<6>2016/11/11 06:50:58.30: scsi/27 tgt VPD83T3:60000097000000000000000000000000 cmd 0x2a status 0x2 valid 0 resp 0x70 seg 0x0 bits 0x0 key 0xb info 0x0 alen 10 csi 0x0 asc 0x44 ascq 0x0 fru 0x0 sks 0x0

執行 21 次重試,儲存磁碟區因為連續寫入失敗而被標示為失效。

128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298797:<4>2016/11/11 06:51:01.42: amf/45 disk VPD83T3:60000097000000000000000000000000: write failure: marking this in-use disk dead
128.221.253.37/cpu0/log:5988:W/"0060166fcbfe192045-1":3298798:<2>2016/11/11 06:51:01.42: amf/97 disk VPD83T3:60000097000000000000000000000000: disk died, no mirror exists

 

Cause

儲存陣列針對寫入 I/O 要求 (0x2a傳回 B/44/00,陣列無法處理 I/O 要求,並以檢查條件 B/44/00 (內部目標故障) 回應

如果基礎儲存磁碟區是 VMAX 磁碟區,則可能會發生 I/O 故障,原因如下:

VMAX 中止 IO 的原因並未提供給 VPlex。發生內部目標故障的原因有很多,而且可能由非常廣泛的來源引起。

 

Resolution

傳送 scsi 檢查條件 B/44/00 至 VPLEX 的儲存陣列必須由個別陣列廠商進行調查。此問題是由於儲存陣列上的「內部目標故障」問題,而無法回應寫入 I/O 要求所觸發。

如果基礎陣列是 VMAX 陣列,則陣列可以傳送 scsi 檢查條件「B/44/00」,原因有多種。

可在 VPLEX 管理伺服器上執行下列 cli 命令,以取得受 B/44/00 檢查條件影響的邏輯單元清單:

grep "scsi/27" firmware.log* | grep 'key 0xb' |awk '{print $3, $5, $18, $19, $26,$27,$28,$29}'| sort | uniq -c | sort -nr

範例

service@ManagementServer:~> grep "scsi/27" firmware.log* | grep 'key 0xb' | awk '{print $3, $5, $18, $19, $26,$27,$28,$29}'| sort | uniq -c | sort -nr
 103474 scsi/27 VPD83T3:60000097000000000000000000000000 key 0xb asc 0x44 ascq 0x0
  45254 scsi/27 VPD83T3:60000097000000000000000000000001 key 0xb asc 0x44 ascq 0x0
  32908 scsi/27 VPD83T3:60000097000000000000000000000002 key 0xb asc 0x44 ascq 0x0
  25581 scsi/27 VPD83T3:60000097000000000000000000000003 key 0xb asc 0x44 ascq 0x0
  21043 scsi/27 VPD83T3:60000097000000000000000000000004 key 0xb asc 0x44 ascq 0x0
  10809 scsi/27 VPD83T3:60000097000000000000000000000005 key 0xb asc 0x44 ascq 0x0
  10651 scsi/27 VPD83T3:60000097000000000000000000000006 key 0xb asc 0x44 ascq 0x0

如果這是非 EMC 陣列,請與個別陣列廠商聯絡,以解決儲存陣列上存在的問題。

 

Additional Information

這不是 VPlex 的問題,這可能是後端陣列或光纖問題。

必須與儲存陣列團隊、連線能力或兩者接洽。

 

Affected Products

VPLEX Series

Products

VPLEX Series, VPLEX VS2
Article Properties
Article Number: 000167224
Article Type: Solution
Last Modified: 28 Oct 2025
Version:  5
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