https://community.hpe.com/t5/msa-storage/msa20-total-cache-size-0/m-p/6765433#M9047 <P>I have a problem with MSA20 I have a feeling that the cache does not work<BR /><BR />=&gt; ctrl all show detail<BR />MSA20 in 0<BR />Bus Interface: SCSI<BR />Serial Number: P6C8C0FMQR773K<BR />Chassis Serial Number: E038MLJ144<BR />Cache Serial Number: P67570M9STP1QK<BR />Chassis Name: 0<BR />RAID 6 (ADG) Status: Enabled<BR />Controller Status: OK<BR />Chassis Slot: 2<BR />Hardware Revision: A<BR />Firmware Version: 1.24<BR />Cache Board Present: True<BR />Cache Status: OK<BR />Drive Write Cache: Enabled<BR />Total Cache Size: 0 MB<BR />Total Cache Memory Available: 240 MB<BR />No-Battery Write Cache: Disabled<BR />Chassis Slot 2 Battery Info<BR />Cache Backup Power Source: Batteries<BR />Battery/Capacitor Count: 2<BR />Battery/Capacitor Status: OK<BR />Host Bus Adapter Port: 2<BR />SATA NCQ Supported: False<BR />Smart Array 6400 in Slot 0 (Embedded)<BR />Bus Interface: PCI<BR />Slot: 0<BR />Serial Number: P57820P9SRH167<BR />Cache Serial Number: P577A0D9SRH0YD<BR />RAID 6 (ADG) Status: Enabled<BR />Controller Status: OK<BR />Hardware Revision: B<BR />Firmware Version: 2.84<BR />Rebuild Priority: Low<BR />Expand Priority: Low<BR />Surface Scan Delay: 15 secs<BR />Surface Scan Mode: Idle<BR />Post Prompt Timeout: 0 secs<BR />Cache Board Present: True<BR />Cache Status: OK<BR />Cache Ratio: 25% Read / 75% Write<BR />Total Cache Size: 192 MB<BR />Total Cache Memory Available: 128 MB<BR />No-Battery Write Cache: Disabled<BR />Cache Backup Power Source: Batteries<BR />Battery/Capacitor Count: 2<BR />Battery/Capacitor Status: OK<BR />SATA NCQ Supported: False<BR /><BR />What can I do to make it work normally??</P> Thu, 16 Jul 2015 13:24:39 GMT NuMeR 2015-07-16T13:24:39Z https://community.hpe.com/t5/msa-storage/msa20-total-cache-size-0/m-p/6765433#M9047 <P>I have a problem with MSA20 I have a feeling that the cache does not work<BR /><BR />=&gt; ctrl all show detail<BR />MSA20 in 0<BR />Bus Interface: SCSI<BR />Serial Number: P6C8C0FMQR773K<BR />Chassis Serial Number: E038MLJ144<BR />Cache Serial Number: P67570M9STP1QK<BR />Chassis Name: 0<BR />RAID 6 (ADG) Status: Enabled<BR />Controller Status: OK<BR />Chassis Slot: 2<BR />Hardware Revision: A<BR />Firmware Version: 1.24<BR />Cache Board Present: True<BR />Cache Status: OK<BR />Drive Write Cache: Enabled<BR />Total Cache Size: 0 MB<BR />Total Cache Memory Available: 240 MB<BR />No-Battery Write Cache: Disabled<BR />Chassis Slot 2 Battery Info<BR />Cache Backup Power Source: Batteries<BR />Battery/Capacitor Count: 2<BR />Battery/Capacitor Status: OK<BR />Host Bus Adapter Port: 2<BR />SATA NCQ Supported: False<BR />Smart Array 6400 in Slot 0 (Embedded)<BR />Bus Interface: PCI<BR />Slot: 0<BR />Serial Number: P57820P9SRH167<BR />Cache Serial Number: P577A0D9SRH0YD<BR />RAID 6 (ADG) Status: Enabled<BR />Controller Status: OK<BR />Hardware Revision: B<BR />Firmware Version: 2.84<BR />Rebuild Priority: Low<BR />Expand Priority: Low<BR />Surface Scan Delay: 15 secs<BR />Surface Scan Mode: Idle<BR />Post Prompt Timeout: 0 secs<BR />Cache Board Present: True<BR />Cache Status: OK<BR />Cache Ratio: 25% Read / 75% Write<BR />Total Cache Size: 192 MB<BR />Total Cache Memory Available: 128 MB<BR />No-Battery Write Cache: Disabled<BR />Cache Backup Power Source: Batteries<BR />Battery/Capacitor Count: 2<BR />Battery/Capacitor Status: OK<BR />SATA NCQ Supported: False<BR /><BR />What can I do to make it work normally??</P> Thu, 16 Jul 2015 13:24:39 GMT https://community.hpe.com/t5/msa-storage/msa20-total-cache-size-0/m-p/6765433#M9047 NuMeR 2015-07-16T13:24:39Z