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Re: [zfs-discuss] Can this be done?

Subject: Re: [zfs-discuss] Can this be done?
From: Miles Nordin
Date: Wed, 08 Apr 2009 12:39:21 -0400
>>>>> "ms" == Michael Shadle <[email protected]> writes:

    ms> When I attach this new raidz2, will ZFS auto "rebalance" data
    ms> between the two, or will it keep the other one empty and do
    ms> some sort of load balancing between the two for future writes
    ms> only?

the second choice.

You can see how things are balanced right now, in terms of both size
used on each vdev and io/s on each device, using 'zpool iostat <pool>
1'.  the interval timing seems kind of goofy though---when the pool is
busy the intervals are longer than one second, which sort of defeats
the purpose of bucketing, so it is just a rough-guess kind of tool,
not the serious statistics collector it looks like.
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