backups on secondary replica (high availability - Sql 2012)

if the HA is in 'Asynchronous' mode, should you schedule backups for the replica, or is it even possible?
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Vitor MontalvãoMSSQL Senior EngineerCommented:
Backup operations on secondary replicas only supports copy-only full backups and regular transactional log backups. Is those type of backups do you need?
25112Author Commented:
Vitor, I am wondering if I should plan for it. basically the secondary is in sync, even though with time delay. would having the backup of primary and Tlog be sufficient? what would be the industry best practice for this?
Vitor MontalvãoMSSQL Senior EngineerCommented:
I would set the Full and Differential backups to run in the primary since these kind of backups are scheduled to run out of working hours (usually by night) and set the transactional log backups to run in the secondary since this kind of backup runs more regularly and during working hours.
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25112Author Commented:
will FULL from primary and LOG from secondary work together..? (will their log chain match?)
Vitor MontalvãoMSSQL Senior EngineerCommented:
Yes. There is no issue of both jobs running from different machines since they will run on the same databases and that was count for keep the backup chain.
25112Author Commented:
OK. thanks Vitor.

does this need special permissions? (since 'Asynchronous' does not allow Read access, will that cause TranLog backup any issues?)
Vitor MontalvãoMSSQL Senior EngineerCommented:
I shouldn't since you won't read data but backup only.

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