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1695
Where can I find RAM read cache in Storage pool rest
Hi there,
URL: https:// /api/types/StoragePool/instances
Info: "rmcacheWriteHandlingMode": "Cached","sparePercentage": 35,"checksumEnabled": false,"useRfcache": false,"rebuildEnabled": true,"rebalanceEnabled": true,"numOfParallelRebuildRebalanceJobsPerDevice": 2,"capacityAlertHighThreshold": 80,"capacityAlertCriticalThreshold": 90,"rebalanceIoPriorityAppIopsPerDeviceThreshold": null,"rebuildIoPriorityAppBwPerDeviceThresholdInKbps": null,"rebalanceIoPriorityAppBwPerDeviceThresholdInKbps": null,"rebuildIoPriorityQuietPeriodInMsec": null,"rebalanceIoPriorityQuietPeriodInMsec": null,"zeroPaddingEnabled": false,"backgroundScannerMode": "Disabled","rebuildIoPriorityBwLimitPerDeviceInKbps": 10240,"useRmcache": false,"rebalanceIoPriorityBwLimitPerDeviceInKbps": 10240,"rebuildIoPriorityPolicy": "limitNumOfConcurrentIos","rebalanceIoPriorityPolicy": "favorAppIos","rebuildIoPriorityNumOfConcurrentIosPerDevice": 1,"rebalanceIoPriorityNumOfConcurrentIosPerDevice": 1,"rebuildIoPriorityAppIopsPerDeviceThreshold": null,"backgroundScannerBWLimitKBps": 0,"protectionDomainId": "29efc5b456464000","name": "STOR","id": "345364356457474",
Question: Is "useRmcache": false same as RAM read cache status? And also what is "useRfcache": false
Thank you,
RItu
Richard_Butler
84 Posts
1
June 1st, 2017 14:00
Hello Ritu,
From the 2.0.1 Release Notes: The XtremCache feature is now called Read Flash Cache (Rfcache) - so, using SSD drives for read caching. (As I think you know, Rmcache is SDS Server RAM cache - again read only caching.)
ritu86jain
32 Posts
0
June 1st, 2017 14:00
Thank you very much for a quick resposne!!
ritu86jain
32 Posts
0
June 1st, 2017 18:00
Had another quick question:
Tiebreaker and SlaveMDMs have attribute Status. This attr is set to Normal (What does it really mean in terms of state) As in - is it running or available to handle loads?
Whereas Master MDM and Standby MDM donot have status code. Why is that?
Thank you
Ritu
Richard_Butler
84 Posts
0
June 2nd, 2017 10:00
Hello Ritu,
Every MDM (whether 3 or 5) should have a status - where do you see no status?
What do you see in the GUI/Dashboard? The Dashboard uses the following color scheme (per the 2.0.x User Guide):
Also, just around your wording ".... available to handle loads", the MDMs are not in the data path.
So, normal is good.
Hope that helps, Richard.