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ZFS esxi: auto tier, snapping service, scrubbing service ...?

Posted on 2013-01-06
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Last Modified: 2013-01-06
Hi,

I see Nexenta ZFS has a lot of "services", as mentioned in this title and below in screenshot.
How should I configure them best practice?

Auto tier? Can do it locally or remotely, I guess that's also some kind of backup?

Snapping? Understand what it can do but I have the option to snap every hour(?!), won't impact be drastic on performance and where does it keep the data (I'd need massive extra storage right)?

Scrubbing? Here I have the option to do this weekly by default?

zfssnap
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Question by:janhoedt
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Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 38749273
Best Practices: Using NexentaStor for VMware Customers


Auto-Tier = Incremental File-Level Snapshot Backups.

Snapping = ZFS Snapshots are kept in the ZFS volume, so yes, your storage will be used, if you decide to use Snapshots for Restore.

Scrubbing = ZFS Scrubs allows you to schedule and manage scrubs on a ZFS volume. Performing a ZFS scrub on a regular basis helps to identify data integrity problems, detect silent data corruptions caused by transient hardware issues, and to provide early alerts to disk failures. If you have consumer-quality drives, consider a weekly scrubbing schedule. If you have datacenter-quality drives, consider a monthly scrubbing schedule.
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by:janhoedt
ID: 38749284
Thanks!

*Auto tier isn't relevant here to activate then?

*By default snapping shows option for every hour. What would you recommend + will it impact performance heavily?

*Scrubbing: ok, I'll activate it once a week
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LVL 121
ID: 38749298
We do not do Auto-Tiering, or scrubbing.

Snapshots, only if you are going to use them, if you have another backup method, use that.
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