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I have a 2 x 146GB SAS in RAID1. I bought 2 more, same specs drive. I am on a production server. I have a P410 with 512MB cache, but no battery. I can afford a downtime.

My questions are:

  1. Can I load ACU boot CD and add the new drives, in offline mode?
  2. After I added the drives to the array, can I migrate the RAID level from 1, to 10, offline?
  3. Is my data gonna be safe?

I still don't get it if P410 without a battery, which is needed for online migration and other operations, will allow me to do this offline, as I have no battery for the cache.

Any help will be appreciated! Thanks a lot!

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By HP Website : https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03510253 you Can extend the Array. i would recommend a backup any way. but you do need the cache battery. unless it won't be successful and you might lose your DATA.

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