From: Eric Wheeler <btrfs@lists.ewheeler.net>
To: linux-btrfs@vger.kernel.org
Subject: Global reserve ran out of space at 512MB, fails to rebalance
Date: Thu, 10 Dec 2020 01:52:19 +0000 (UTC) [thread overview]
Message-ID: <alpine.LRH.2.21.2012100149160.15698@pop.dreamhost.com> (raw)
Hello all,
We have a 30TB volume with lots of snapshots that is low on space and we
are trying to rebalance. Even if we don't rebalance, the space cleaner
still fills up the Global reserve:
Device size: 30.00TiB
Device allocated: 30.00TiB
Device unallocated: 1.00GiB
Device missing: 0.00B
Used: 29.27TiB
Free (estimated): 705.21GiB (min: 704.71GiB)
Data ratio: 1.00
Metadata ratio: 2.00
>>> Global reserve: 512.00MiB (used: 512.00MiB) <<<<<<<
This was on a Linux 5.6 kernel. I'm trying a Linux 5.9.13 kernel with a
hacked in SZ_4G in place of the SZ_512MB and will report back when I learn
more.
In the meantime, do you have any suggestions to work through the issue?
Thank you for your help!
--
Eric Wheeler
next reply other threads:[~2020-12-10 1:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 1:52 Eric Wheeler [this message]
2020-12-10 2:38 ` Global reserve ran out of space at 512MB, fails to rebalance Qu Wenruo
2020-12-10 3:12 ` Zygo Blaxell
2020-12-10 19:02 ` Eric Wheeler
2020-12-10 19:50 ` Eric Wheeler
2020-12-11 3:49 ` Zygo Blaxell
2020-12-11 19:08 ` Eric Wheeler
2020-12-11 21:05 ` Zygo Blaxell
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