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March 21st, 2022 03:00
Need advise on SyncIQ policy
I have 1 folder name Dept_share need to replicate to DR. The Dept_share folder size is about 150 TB.
There are 8 subfolders under Dept_share, The capacity of each subfolder is about 20 TB.
During DR all 8 subfolders are required.
What is the SyncIQ policy recommend?
1 policy at Dept_share level or 8 policies at subfolder level?
someone told me SyncIQ don't like many small policies, it work better when use 1 giant policy. don't know this true or his believe.
The_Storage_Panda
4 Posts
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March 21st, 2022 08:00
HI @chayapit You can refer the below:
As per Pg 16/18 of PowerScale OneFS Technical Specifications Guide (dell.com),
The recommended limit for defined SyncIQpolicies.
The maximum limit of defined policies has not been established. If the number of policies exceeds the recommended limit, you should keep in mind the following effects:
● SyncIQ is bound by the limit on the number of concurrently running policies. If many policies
are running on schedules, the queue to run the jobs might become so large that OneFS
can never complete all the jobs in the queue.
● Each policy represents a set of snapshots on the source and the destination clusters.
More snapshots mean that more jobs must run to delete the snapshots, and the increase
in the number of jobs can negatively affect the cluster performance.
You can also refer to Security Configuration guide for your specific OneFS version.
The exact configuration should be based on your Infra requirements : RPO, RTO, network throughput, etc.
Phil.Lam
3 Apprentice
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625 Posts
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March 22nd, 2022 17:00
several SyncIQ policies is best for big directories.