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Question About Raid type in Centera
Hi
Does any one know how to get the RAID type in Centera Centra star 4.1, i mean, Parity or Mirror.
Best regards
This post is more than 5 years old
165 Posts
0
2828
Hi
Does any one know how to get the RAID type in Centera Centra star 4.1, i mean, Parity or Mirror.
Best regards
Top
Apex_Ops
89 Posts
0
July 29th, 2010 06:00
Hi Guanabacoa,
I see you posted a question regarding the raid type on a centera and that your question in this post appears to have been answered. Was this a correct or helpful answer? If so could you please mark the question as Answered (helpful or correct)?
Thanks for your assistance and participation in the Support Forums.
Regards,
Ronan
EMCDennis
124 Posts
0
June 8th, 2010 10:00
Centera Viewer CLI command "show protection" will show the current protection scheme
Config# show prot
Write Fallback
------------------------------------------
Mirror 0 B -
Parity disabled -
------------------------------------------
The above shows the protection scheme is mirroring else Parity (CPP) would be enabled and showing a threshold where anything larger than the threshold would be written in parity. Small objects (250KB or less) should always be written in Mirroring (CPM)
Anonymous
5 Practitioner
5 Practitioner
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274.2K Posts
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June 8th, 2010 10:00
The CLI command show protection will show whether the cluster is configured for CPP or CPM
Anonymous
5 Practitioner
5 Practitioner
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274.2K Posts
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June 8th, 2010 10:00
Use the CLI command:Syntax
show protection
Role
The monitor role is required to perform this command.
Use
This command displays information on the content protection scheme in use.
Output
Write Fallback
Mirror 0 B -
------------------------------------------
Description
The output descriptions are as follows:
Mirror
Content Protection Mirrored.
Parity
Content Protection Parity.
Write
The minimum file size above which the given protection scheme is used for writing files.
Fallback
The fallback scheme being used. If Mirror is the current protection scheme, there is no fallback. The fallback scheme for Parity is disabled by default but can be set to Mirror.
Joe_Ab
227 Posts
0
June 8th, 2010 22:00
If its a CPM then the parity will be disabled ?
so what about the below cluster ;
Write Fallback
------------------------------------------
Mirror 0 B -
Parity 250 KB Mirror
------------------------------------------
Thnx
Anonymous
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274.2K Posts
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June 9th, 2010 06:00
In this cluster objects over 250K will be written as parity. If there are not 8 nodes with enough capacity to store the object, then the write will fallback to mirror.
All objests less than 250K will be writen as mirrored.
East_TN_EMC
29 Posts
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June 15th, 2010 07:00
If you are on the email list to receive the daily health reports, you can also find this information in the health report.
Protection Scheme(s): CPP,CPM
Protection Threshold(s): 256000,0
In this case, you have CPP with mirrored fallback and a 256K threshold.