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| What is "DisableChunkletInitUNMAP" ? https://3parug.net/viewtopic.php?f=18&t=2787 |
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| Author: | markinnz [ Wed Jan 31, 2018 8:36 pm ] |
| Post subject: | What is "DisableChunkletInitUNMAP" ? |
There is a system parameter "DisableChunkletInitUNMAP" .. anyone know what that is ? Array is an 8440 running : Code: cli% showversion Release version 3.3.1 Patches: P01,P02,P04,P06,P13,P16 example: Code: cli% showsys -param
System parameters from configured settings -------Parameter-------- ----Value---- RawSpaceAlertFC : 0 RawSpaceAlertNL : 0 RawSpaceAlertSSD : 0 RemoteSyslog : 0 RemoteSyslogHost : 0.0.0.0 RemoteSyslogSecurityHost : 0.0.0.0 SparingAlgorithm : Default EventLogSize : 4M VVRetentionTimeMax : 336 Hours UpgradeNote : PortFailoverEnabled : yes AutoExportAfterReboot : yes AllowR5OnNLDrives : no AllowR0 : no ThermalShutdown : yes FailoverMatchedSet : yes SessionTimeout : 01:00:00 HostDIF : yes HostDIFTemplate : 3par_host_dif AllowWrtbackSingleNode : 0 AllowWrtbackUpgrade : 0 DisableDedup : no OverprovRatioLimit : 0.0 OverprovRatioWarning : 0.0 DisableChunkletInitUNMAP : no PersonaProfile : block-only AllowR5OnFCDrives : no DisableCompr : no RemoteCopyHostThrottling : no |
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| Author: | MammaGutt [ Thu Feb 01, 2018 3:11 am ] |
| Post subject: | Re: What is "DisableChunkletInitUNMAP" ? |
I have no idea, but based on the name I would assume that it would prevent chunklets being fully cleared by UNMAP to be reinitialized automatically... However I thought you would need to compact the CPG to clear empty LDs which again cleared chunklets. But again, this is a wild guess. |
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