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09-17-2015 07:11 AM
09-17-2015 07:11 AM
P812 Array Accellerator disabled
We have a P812 controller in an Se326M1 (DL180 G6) and the array accelerator is disabled.
Output from the CLI is this:
Cache Board Present: True
Cache Status: Permanently Disabled
Cache Status Details: Cache disabled; backup to flash memory failed
Accelerator Ratio: 50% Read / 50% Write
Drive Write Cache: Enabled
Total Cache Size: 1024 MB
Total Cache Memory Available: 912 MB
No-Battery Write Cache: Enabled
Cache Backup Power Source: Capacitors
Battery/Capacitor Count: 1
Battery/Capacitor Status: OK
Is there any way to re-enable the cache without rebooting this server? It is running critical storage for VMs.
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09-17-2015 11:33 PM
09-17-2015 11:33 PM
Re: P812 Array Accellerator disabled
>Cache Status Details: Cache disabled; backup to flash memory failed
I would think this is the problem.
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09-18-2015 02:46 AM
09-18-2015 02:46 AM
Re: P812 Array Accellerator disabled
Yeah we have already replaced the 1GB cache module and assumed the array accellerator would be enabled automatically.
After a few days we noticed the performance of the VMs was still terrible so we checked the acucli and saw the cache is still disabled.
We were hoping there is a way to force enable the cache again from the cli because scheduling another reboot and maintenance window is not ideal.
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09-18-2015 02:05 PM
09-18-2015 02:05 PM
Re: P812 Array Accellerator disabled
>we have already replaced the 1GB cache module
Hmm, if you replaced it, why does it still say failed?
Did that module also contain the flash?
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09-19-2015 12:42 AM
09-19-2015 12:42 AM
Re: P812 Array Accellerator disabled
Yep we replaced both the flash cache module and capacitor pack.