Depends on the error case β usually you will see blocked IO messages as well if there is a condition causing OSDs to be unresponsive.
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of ??? Sent: Friday, 4 August 2017 1:34 PM To: ceph-users@lists.ceph.com Subject: [ceph-users] Does ceph pg scrub error affect all of I/O in ceph cluster? Hi cephers, I experienced ceph status into HEALTH_ERR because of pg scrub error. I thought all I/O is blocked when the status of ceph is Error. However, ceph could operate normally even thought ceph is in error status. There are two pools in ceph cluster which are include seperate nodes.(volumes-1, volumes-2) The OSD device which has problem is in volumes-1 pool. I noticed that volumes-2 pool has no problem with operation. My question is that all of I/O request are blocked when the ceph status is into error or it depends on error case? Thank you! John Haan Confidentiality: This email and any attachments are confidential and may be subject to copyright, legal or some other professional privilege. They are intended solely for the attention and use of the named addressee(s). They may only be copied, distributed or disclosed with the consent of the copyright owner. If you have received this email by mistake or by breach of the confidentiality clause, please notify the sender immediately by return email and delete or destroy all copies of the email. Any confidentiality, privilege or copyright is not waived or lost because this email has been sent to you by mistake.
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