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Ip=[23.103.226.20]; Helo=[032-smtp-out.weatherford.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR0301MB1621 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 22:02:22 -0000 With regards to this issue, it's a case of the old FreeBSD 9.0 settings not= working the same as in FreeBSD 10 & 11: the ZFS ARC min & max settings I w= as utilizing were too aggressive. On a separate server with 18 days of uptime, bumping vfs.zfs.arc_min and vf= s.zfs.arc_max up to something more reasonable sans reboot restored performa= nce. Apologies for the noise and thanks for the suggestions. -- Aaron This message may contain confidential and privileged information. If it has= been sent to you in error, please reply to advise the sender of the error = and then immediately delete it. If you are not the intended recipient, do n= ot read, copy, disclose or otherwise use this message. The sender disclaims= any liability for such unauthorized use. PLEASE NOTE that all incoming e-m= ails sent to Weatherford e-mail accounts will be archived and may be scanne= d by us and/or by external service providers to detect and prevent threats = to our systems, investigate illegal or inappropriate behavior, and/or elimi= nate unsolicited promotional e-mails (spam). 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