Write cache stays disabled

Question

It happend two times that one of our clariion CX500 was powerd off at once (power failure in the building)

After the first time th power was on again the CX500 came up. Starts mirroring again en the write cache on de Storage proccesors was enabled again. Batteries where charge 100% again ( I hope) Leds where green on the back!

Short after that again a power failure and all repeats just like writen above.
But now the write cache state still disabled!
The last power failure happend about 3 hours ago.

Do I need to give it time? What can be the problem?

nandas · Answer

Can you see any errors on the CX500? Are both the SPS (battery) fully charged?

You may try to enable the write cache manually and see whether it comes back on.

It should not take that much long time - but something else might be preventing the write cache to be enabled automatically.

Check for any error or issue (you may check the SP event log as well), try manually enabling the write cache Or else, open a case with EMC support.

Thanks,
Sandip

teovmy · Answer

Great, I forgot that it was possible to enable the write cache manual.
So I did this and it works again.

I will check the logs it I can fins anything why it nog enable it self.

Thanx for your quick reply.

nandas · Answer

Great - nice to hear that.

nandas · Answer

Hi,Request you to kindly mark the relevant answer(s) as 'Correct' and/or 'Helpful' which will facilitate proper search results in future for similar type of queries.Have a great weekend.Regards,Sandip

kelleg · Answer

To enable the Write cache. log into NAvisphere, right-click on the array icon, select Properties, go to the cache tab - there you will see three cache enable buttons - two for Read and one for Write - check the box. If there are no problems on the array, the box will stay checked, if there are issues, you will get an error message.

regards,

glen

daveirwin · Answer

So....how did you enable write cache manually?I have same issue on a CX300Regards

CLARiiON

Write cache stays disabled

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