As others have pointed out; setting the failure domain to OSD is dangerous because then all 6 chunks for an object can end up on the same host. 6 hosts really seems like the minimum to mess with EC pools. Adding a bucket type between host and osd seems like a good idea here, if you absolutely must use EC pools. Perhaps something that corresponds to the HBAs / disk controllers? Thank you, Dominic L. Hilsbos, MBA Director - Information Technology Perform Air International, Inc. DHilsbos@xxxxxxxxxxxxxx www.PerformAir.com -----Original Message----- From: Lindsay Mathieson [mailto:lindsay.mathieson@xxxxxxxxx] Sent: Friday, June 26, 2020 4:08 AM To: Zhenshi Zhou Cc: ceph-users Subject: Re: fault tolerant about erasure code pool On 26/06/2020 8:08 pm, Zhenshi Zhou wrote: > Hi Lindsay, > > I have only 3 hosts, and is there any method to set a EC pool cluster > in a better way There's failure domain by OSD, which Janne knows far better than I :) -- Lindsay _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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