12/20/2018 9:08 AM | |
Joined: 7/13/2007 Last visit: 2/9/2024 Posts: 32 Rating: (1) |
Hi, We are using redundant Servers ( Say Server 1 and Server 2) with Wincc V 7.2 update 14. It is observed that Server-2 HMI trends updation freez very frequently. During this time operator login is also disabled in server-2. Following observation to share: When we compare the server memory allocation for WInCC in Server-1 and Server-2 , we find some mismatch. it was found that Max_Server_Memory allocated for SQL in server 2 is 2147483647 MB ( Ref: Attached Pic-1 SERVER 2)which is default value and it is not matching with Max_Server_Memory of Server 1 which is 2048 MB( Ref: Attached Pic-2 SERVER 1). Further observation is that during the frequent failures of server 2 , event logs indicate “Insufficient system memory” which may have a correlation with the setting. ( Ref: Attached Pic-3) Please note that this issue is repeated only in server-2. Kindly have a look these settings in co-relation with this issue and suggest the recommended memory allocation as well as any other settings to prevent re occurrence of this repeated issue. AttachmentSnap shot.pdf (129 Downloads) |
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