Hi Len, Thank you for your response.
Btw, what will be the approximate cost for Netbackup encryption license per client. Regards, Pondy On 1/5/07, Len Boyle <[EMAIL PROTECTED]> wrote:
Good Day Pondy I did not notice any change between netbackup 5 and 6 in performance for the encryption option. The encryption option uses large quantities of cpu on the client. If you have a client with plenty of spare cpu, you should see no difference in the backup speeds. But you will lose compression of the data at the tape drive if you are using the tape hardware to compress your data. We have not tried software compression with the software encryption option. If your client has little or no spare cpu cycles, you will see a slow down in the backup speeds. There is almost no management of the encryption keys with the netbackup encryption feature. You have to make sure that if you want to restore data to a client, that the key that was used to encrypt the data is installed on the client. So if you have data from client A from nov last year and want to restore it to client B. And you have data from client C from last jan that you want to restore to client B. And you have data from client B from yesterday that you want to restore to client B. You must have a keyfile with keys that match all three sets of data. Note- as far as I know there is only one active keyfile on the client and no way to tell netbackup to look at more then one keyfile when search for a matching key for a restore. If this morning you had changed the key on client B and you plan to do a backup on client B using the new key, you must make sure that this new key is the correct position in the keyfile. As the first key is the one used for backups. Unless your keyfiles for the different clients are all the same [And you can do this by maintaining a keyfile on one client and copying it to other clients] you must either do all the restores with a different keyfile installed on the client, or build a new keyfile with all the keys installed. With the current key installed last, even if it was already installed in the keyfile. len ------------------------------ *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Pondy p *Sent:* Friday, January 05, 2007 6:40 AM *To:* veritas-bu@mailman.eng.auburn.edu *Subject:* [Veritas-bu] NetBackup Encryption Hello, We are looking to implement NetBackup Encryption in our setup. I would like to know some details from the people whoever using it. What is the performance impact in backup/restore while using NetBackup encryption in 5.1 and 6.0? Is there cost benefits to management? Thanks in advance. Pondy Storage Administrator Bangalore,India
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