On 18.04.2017 15:15, Hugo Mills wrote:
On Tue, Apr 18, 2017 at 02:41:49PM +0200, Werner Braun wrote:
Hi,
i have a WD WD40EZRX with strange beaviour off btrfs check vs. btrfs scrub
running btrfs check --check-data-csum returns no errors on the disk
running btrfs scrub on the disk finds tons of errors
i could clear the disk and send it to anyone intrested in ;-)
Do you have anything likely to be writing with O_DIRECT during the
scrub? Specifically, databases and VMs. Possibly some kinds of
torrent/distributed downloads.
No i used as a temporary disk for btrfs send receive,
btrfs send -v -f /mnt/tmp/out <subvol>
wrote 1.5 TB of Data.
while running
btrfs receive -v -f /mnt/tmp/out /path/to/dest
read errors occured
I called
btrfs check --check-data-csum
which returned no errors
then i mounted the Disk and called
btrfs scrub start /path/to/dest
No other read or write operations where running on the disk at that time.
--
Werner Braun
+49 178 145 8768
O³ Software GmbH & Co. KG * Franziusallee 73 * 24148 Kiel * Germany
Sitz der Gesellschaft Kiel * HR Amtsgericht Kiel HRA 6418 KI
Persönlich haftende Gesellschafterin: O³ Software GmbH
HR Amtsgericht Kiel HRB 10335 KI * Geschäftsführer Werner Braun
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