Storeonce Encryption

[ledvan]

Hi All,

we are using storeonce to store our backup data, previously when i wanted to enable the hardware encryption feature of storeonce, i was warned that if we enable it, we can not disable it unless we delete the catalyst store. i would like to know:

1. if  that is still the case?

2. would enabling encrpytion have any impact on compression & deduplication ratio?

3. how much enabling encryption affect resource usage on storeonce(RAM, CPU,..) roughly?

regards,

Hirosh

[Cali]

Hi,

i can say that when you create the catalyst store, you specify whether it will use encryption or not.
And you can't change that afterward.
But you can create a second one with different settings.

Typically, if customers later decide to change their settings, we create a second store and have all new backups written to it.
When the old one has become empty over time, it can then be deleted.

Cali

[sbhat09]

Hello @ledvan,

Agree with @Cali's comments. Just adding my points..

1. if  that is still the case?
The information in the warning message is true. If you enable encryption for a catalyst store, you can't disable the encryption for that store in future. All the backups saved in that store will be encrypted. You can't reverse it.
If you want to do away from encryption in future, create a new catalyst store without encryption -> redirect all future backups to the new store -> over a period the backups in the encrypted store will become absolete -> you can delete the old encrypted store if that is no more required.

2. would enabling encrpytion have any impact on compression & deduplication ratio?
Compression and deduplication will work as usual in an encrypted catalyst store. It will just add encryption bits to the backups while saving them.

3. how much enabling encryption affect resource usage on storeonce(RAM, CPU,..) roughly?
This is data at rest encryption. It will NOT use considerable amount of system resource like deduplication.
Video link for more details - https://support.hpe.com/hpesc/public/videoDisplay?videoId=vtc00030134en_us

Regards,
Srinivas Bhat

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