ECS: Migrated Clip cannot be read - Error Code: Maximum C-Clip size reached

Summary: Unable to read clip that has been migrated from Centera to ECS due to error Maximum Clip Size

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Symptoms

CAS migration from Centera to ECS

Clip that has been migrated from Centera to ECS cannot be read and throws error: Maximum C-Clip size reached, code: -10026

Example of the failed restore on ECS: 
java -jar /home/filepool/bin/CenteraExerciser.jar  -address xx.xx.xx.xx?casuser.pea -order ro -clipfile file
Starting restore of clips and blobs to cluster...
FPClip::CheckCDFSizeEstimate()<FPTag::BlobWrite(stream,2)<FPTag_BlobWrite(-,-,0)

com.filepool.fplibrary.FPLibraryException: Maximum C-Clip size reached
        at com.filepool.fplibrary.FPTag.BlobWrite(Unknown Source)
        at com.filepool.fplibrary.FPTag.BlobWrite(Unknown Source)
        at com.emc.centera.apiengine.core.CenteraSDK.storeRAW(CenteraSDK.java:2150)
        at com.emc.centera.centeraexerciser.utils.RawOpenThread.run(RawOpenThread.java:215)
ERROR: Writing blob (com.filepool.fplibrary.FPTag@1cd296b.BlobWrite(java.io.FileInputStream@5a7159)) - com.filepool.fplibrary.FPLibraryException: Maximum C-Clip size reached, code: -10026 [Thread-1] CenteraSDK.java:2169 at 2019-05-07 17:41:06,757
**** RawOpen(s) finished ****

Test has finished with 1 errors

Test failed

Cause

Centera cannot migrate clips over 100 MB to the ECS.

This is by design, it is CAS SDK behavior which stops taking additional tags once CDF crosses 100 MB. Although a raw-read is successful on the Centera, the file read on ECS fails.

Resolution

The clip must be directly written from the application to the Centera and then migrated once more to ECS. This generates a new clip ID.

The new clip must be updated on customer application database. It may have to be stored with previous clip ID which can cause read errors.

Affected Products

ECS Appliance

Products

ECS Appliance
Article Properties
Article Number: 000050451
Article Type: Solution
Last Modified: 22 Feb 2023
Version:  3
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