VPLEX：分布式设备层次结构是缺失的扩展区

Table of Contents

Detailed Article

Symptoms

Cause

Resolution

Additional Info

Affected Products

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Summary: 本文讨论分布式设备层次结构缺少数据区的问题，以及如何解决数据区缺失的问题。

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Symptoms

查看分布式设备的组件层次结构时，设备分支缺少扩展区。

VPlexcli:/> show-use-hierarchy distributed-storage/distributed-devices/device_CLARiiON1234_LUN_00030_1 storage-view: Windows (cluster-1) consistency-group: CG-CS-Test (synchronous) virtual-volume: device_CLARiiON1234_LUN_00030_1_vol (1G, distributed @ cluster-1, running) distributed-device: device_CLARiiON1234_LUN_00030_1 (1G, raid-1) distributed-device-component: device_C2_CLARiiON1234_LUN_00015_1 (1G, raid-0, cluster-2) extent: extent_C2_CLARiiON1234_LUN_00015_1 (1G) storage-volume: C2_CLARiiON1234_LUN_00015 (1G) logical-unit: VPD83T3:60060160xxxxxxxx56343574ffa5e811 storage-array: EMC-CLARiiON-APM00xxxxxxxxx distributed-device-component: extent_CLARiiON1234_LUN_00030_1 (1G, cluster-1)
<-- The missing extent is expected here.
storage-volume: CLARiiON1234_LUN_00030 (1G)
logical-unit: VPD83T3:60060160xxxxxxxx815405d2daae811 storage-array: EMC-CLARiiON-APM00xxxxxxxxx

列出分布式设备组件时，其中一个组件将显示为几何结构为“切片”的扩展区。

VPlexcli:/> ll /distributed-storage/distributed-devices/device_CLARiiON1234_LUN_00030_1/distributed-device-components/ /distributed-storage/distributed-devices/device_CLARiiON1234_LUN_00030_1/distributed-device-components: Name Cluster Child Fully Operational Health Block Block Capacity Geometry Total ---------------------------------- --------- Slot Logged Status State Count Size -------- -------- FreeSpace ---------------------------------- --------- ----- ------ ----------- ------ ------ ----- -------- -------- --------- device_C2_CLARiiON1234_LUN_00015_1 cluster-2 1 true ok ok 262144 4K 1G raid-0 - extent_CLARiiON1234_LUN_00030_1 cluster-1 0 true ok ok 262144 4K 1G slice - <-- Note the "Geometry" for this extent is listed as 'slice'.

Cause

在极少数情况下，卷上的扩展区迁移可能会导致此问题。迁移完成后，组件层次结构中的扩展区顶部缺少 R0 （RAID 0）设备。

Resolution

组件层次结构中缺少 R0 设备是表面问题。将设备保留在此状态不会对 VPLEX作产生任何明显影响。但是，如果需要解决此表面问题，请向 VPLEX 支持部门提出服务请求并提及本文。

此显示问题的解决方法是使用内部固件命令在数据区顶部插入新的 R0 设备。此过程不会造成任何影响，但只能由技术支持人员完成。

永久修复：
由于这是一个表面问题，目前没有永久的修复方法。