CSI Driver for Unity：使用 NFS 通訊協定在 Unity 上建立小於 1.5 GB 的 PVC 時，持續性磁碟區要求 (PVC) 會顯示為擱置中狀態
Summary: 使用 NFS (網路檔案系統) 通訊協定在 Unity 上建立小於 1.5 GB 的 PVC 時，持續性磁碟區要求 (PVC) 會顯示為擱置中狀態。
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Symptoms
使用 NFS 通訊協定時，使用者無法在 Unity 上建立小於 1.5 GB 的 PVC，並出現下列訊息：
PVC 的說明顯示：
PVC 顯示為擱置中：
CSI 控制器驅動程式記錄顯示：
PVC 的說明顯示：
# kubectl describe pvc pvol0 -n test
...
Warning ProvisioningFailed 35m csi-unity.dellemc.com_unity-controller-66c9b748d7-8hxll_456d3759-46b6-42f5-88e0-75ff8036db4a failed to provision volume with StorageClass "unity-nfs": rpc error: code = Unknown desc = runid=170 Create Filesystem csi-b46e130f5f failed with error: [{The specified file system size is too small. (Error Code:0x6701401)}]
...
Warning ProvisioningFailed 35m csi-unity.dellemc.com_unity-controller-66c9b748d7-8hxll_456d3759-46b6-42f5-88e0-75ff8036db4a failed to provision volume with StorageClass "unity-nfs": rpc error: code = Unknown desc = runid=170 Create Filesystem csi-b46e130f5f failed with error: [{The specified file system size is too small. (Error Code:0x6701401)}]
PVC 顯示為擱置中：
# kubectl get pvc -n test
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
pvol0 Pending unity-nfs 37m
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
pvol0 Pending unity-nfs 37m
CSI 控制器驅動程式記錄顯示：
time="2021-05-04T18:05:04Z" level=debug arrayid=apm00180305385 runid=178 msg="Error in response. Method:POST URI:/api/types/storageResource/action/createFilesystem Error: [{The specified file system size is too small. (Error Code:0x6701401)}] JSON Error: [{The specified file system size is too small. (Error Code:0x6701401)}]" func="github.com/dell/gounity.(*Client).executeWithRetryAuthenticate()" file="dell/gounity/unityclient.go:113"
time="2021-05-04T18:05:04Z" level=error arrayid=apm00180305385 runid=178 msg="failed to invoke Unity REST API server" func="github.com/dell/gounity.(*Client).executeWithRetryAuthenticate()" file="dell/gounity/unityclient.go:127"
time="2021-05-04T18:05:04Z" level=debug arrayid=apm00180305385 runid=178 msg="Filesystem create response: Error:[{The specified file system size is too small. (Error Code:0x6701401)}]" func="github.com/dell/csi-unity/service.(*service).CreateVolume()" file="/go/src/csi-unity/service/controller.go:198"
time="2021-05-04T18:05:04Z" level=debug msg="/csi.v1.Controller/CreateVolume: REP 0178: rpc error: code = Unknown desc = runid=178 Create Filesystem csi-b46e130f5f failed with error: [{The specified file system size is too small. (Error Code:0x6701401)}]"
time="2021-05-04T18:05:04Z" level=error arrayid=apm00180305385 runid=178 msg="failed to invoke Unity REST API server" func="github.com/dell/gounity.(*Client).executeWithRetryAuthenticate()" file="dell/gounity/unityclient.go:127"
time="2021-05-04T18:05:04Z" level=debug arrayid=apm00180305385 runid=178 msg="Filesystem create response: Error:[{The specified file system size is too small. (Error Code:0x6701401)}]" func="github.com/dell/csi-unity/service.(*service).CreateVolume()" file="/go/src/csi-unity/service/controller.go:198"
time="2021-05-04T18:05:04Z" level=debug msg="/csi.v1.Controller/CreateVolume: REP 0178: rpc error: code = Unknown desc = runid=178 Create Filesystem csi-b46e130f5f failed with error: [{The specified file system size is too small. (Error Code:0x6701401)}]"
Cause
如說明文件中所述，陣列具有其限制：
注意：NFS 型磁碟區/pvc 所需的大小新增額外的 1.5 GB。這是因為 Unity 的陣列需求，陣列會使用此 1.5 GB 來儲存中繼資料。這使透過磁碟機的 NFS 通訊協定最小 PVC 大小設定為 1.5 GB，直接在陣列上建立時則為 3 GB。
Resolution
建立 PVC 時，大小的下限應為 1.5 GB。
Products
Dell EMC UnityArticle Properties
Article Number: 000186132
Article Type: Solution
Last Modified: 08 Apr 2022
Version: 3
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