[DOCS-4944] RAID 0 performance advice may be inaccurate Created: 09/Mar/15  Updated: 30/Oct/23  Resolved: 07/Feb/19

Status: Closed
Project: Documentation
Component/s: manual, production, Server
Affects Version/s: None
Fix Version/s: Server_Docs_20231030

Type: Improvement Priority: Major - P3
Reporter: 耀星 张 Assignee: Ravind Kumar (Inactive)
Resolution: Done Votes: 3
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
Participants:
Days since reply: 5 years, 6 days ago

 Description   

I'm a little bit confused by the RAID section of Production Notes
Here it says

Avoid RAID-0 with MongoDB deployments. While RAID-0 provides good write performance, it also provides limited availability and can lead to reduced performance on read operations, particularly when using Amazon’s EBS volumes.

To my understanding usually RAID-0 should work better than single disk, both read and write. Then why does it lead to reduced performance? Is there any specific reason?

Scope

Remove the clause from master -> 3.4



 Comments   
Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: v3.0
https://github.com/mongodb/docs/commit/304536eb04a13eba1040bd1e2b93671f4035fcf9

Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: v3.2
https://github.com/mongodb/docs/commit/38f3a37c9331a28e8eb6c58edcc565d7369d1eaf

Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: v3.4
https://github.com/mongodb/docs/commit/2ce027e8082cf97b7c80c81fdee49a06e77279a6

Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: v3.6
https://github.com/mongodb/docs/commit/d752a24e53657b1c3edc103995c3431e1944677c

Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: v4.0
https://github.com/mongodb/docs/commit/3c59cd0d7b60b95059edc08a08a85b6a085645cb

Comment by Githook User [ 07/Feb/19 ]

Author:

{'name': 'rkumar-mongo', 'email': 'ravind.kumar@mongodb.com'}

Message: DOCS-4944: Remove RAID-0 commentary from production notes
Branch: master
https://github.com/mongodb/docs/commit/ddbbd2f99a3cf52b843f47c425d25b47ed857888

Comment by Ravind Kumar (Inactive) [ 07/Feb/19 ]

I'm going to remove the clause entirely. I am wary about diving into this without more testing and guidance. I don't mind having more opinionated viewpoints on deployment architectures/strategies, but in absence of testing and consensus, I'm inclined to just scratch it out.

Comment by Emily Hall [ 27/Jul/16 ]

Closed for housekeeping on 7/27/2016 by Emily Hall.
If you require additional support, please open a new ticket for prioritization.
Thanks,
Emily

Comment by 耀星 张 [ 09/Mar/15 ]

This is originally from my discussion on stackexchange

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