From owner-freebsd-fs@freebsd.org Sun Nov 11 10:44:00 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6BBD011345A7 for ; Sun, 11 Nov 2018 10:44:00 +0000 (UTC) (envelope-from steven@multiplay.co.uk) Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 223797A663 for ; Sun, 11 Nov 2018 10:43:58 +0000 (UTC) (envelope-from steven@multiplay.co.uk) Received: by mail-lf1-x134.google.com with SMTP id p17so4227345lfh.4 for ; Sun, 11 Nov 2018 02:43:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=multiplay-co-uk.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=bpvN33k8eEE1TeT37BvnGdTtehEPaEaUR4zNLs0yfiA=; b=xI/oFwcIXXUEMojpq0bczekMlR1tg3dbD6vxm6YlFmzqolSAd2z7ik1IiQYdtl9jAw bmAIa3D58NJ+mdpsmpNBFvJfEKAP5blAiYnSj7ws1Qy3g777hqmO8GrYBft5sDD/eqzI /Td8AMEP1Fshxxc7P4wabN0r6YonWQMfKawYtioNsJtIrN+42GZtN93qrHnqd6BDEezw MCJe7DFWRE5neGdPiUNVUX2O/5dWywsJipw3tf9sf70u8QWs8ISqwKsG3IqFwvE1DVSl 1gI2IKTfLNMa6i5pKrvog/Q82R2cBntmKTk/wYrRy0r35VLqL/l/DJ35SNKT7/iluvqy 23dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=bpvN33k8eEE1TeT37BvnGdTtehEPaEaUR4zNLs0yfiA=; b=tQ6q5B/OKufzHVYCHX3pG40f+ONyUSzasFXQiC04gaeTSQZ1wWQLruRbdlvfCG0rJa MFYdp1q+avkF8qTEFk1+7sTbdvG7luzrLfOmBbJ5mKanWwhmmKhXdhkFnDTJ6U4ktM7y gSEDHJ/13GafyUyE5goobT+tfKE7JYQxMN/jxrujHsaKrebo1ZYzYruNjVoQaNxt7rv6 MXbSUTwiw5hFl4CUo7uyY8xnImihRdQVIxZqoi8iLWcX5eG9zLBqUJ+ykB9VHqcGKn2K +uGzr5lGSmMTC0K5DZi1ZnE9wNH8du4vwNVIgEmgvdP0a7g/KVnG4IM47O02fCOFsVU9 NbNg== X-Gm-Message-State: AGRZ1gJtpWw0XTPcr2GapspNHg3dgllU+77F4pydKkEZW1a7dyBYgDZj 2jVzwPNvzahseTSBkG1yMVqu4xrLec9tqnvLTclT+tYaGh0= X-Google-Smtp-Source: AJdET5eIngpT8qEbPZJjqR3YEuHW9AXEL5CslPhekLKNr/TSudqaPayozysThhUf1lkdn7BCbPgwOTw+/Ye7ddB6MdQ= X-Received: by 2002:a19:4ace:: with SMTP id x197mr8780228lfa.39.1541933037061; Sun, 11 Nov 2018 02:43:57 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Steven Hartland Date: Sun, 11 Nov 2018 10:43:46 +0000 Message-ID: Subject: Re: ZFS flash systems To: joe mcguckin Cc: freebsd-fs@freebsd.org X-Rspamd-Queue-Id: 223797A663 X-Spamd-Result: default: False [-3.91 / 200.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.997,0]; R_DKIM_ALLOW(-0.20)[multiplay-co-uk.20150623.gappssmtp.com]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; DMARC_NA(0.00)[multiplay.co.uk]; NEURAL_HAM_SHORT(-0.89)[-0.893,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[multiplay-co-uk.20150623.gappssmtp.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[4.3.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; MX_GOOD(-0.01)[ASPMX.L.GOOGLE.COM,ALT2.ASPMX.L.GOOGLE.COM,ALT1.ASPMX.L.GOOGLE.COM,ASPMX2.GOOGLEMAIL.COM,ASPMX3.GOOGLEMAIL.COM]; FORGED_SENDER(0.30)[killing@multiplay.co.uk,steven@multiplay.co.uk]; RCVD_TLS_LAST(0.00)[]; IP_SCORE(-0.81)[ipnet: 2a00:1450::/32(-2.02), asn: 15169(-1.94), country: US(-0.09)]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[killing@multiplay.co.uk,steven@multiplay.co.uk]; RCVD_COUNT_TWO(0.00)[2] X-Rspamd-Server: mx1.freebsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Nov 2018 10:44:00 -0000 It does perform well and it does have some specific knowledge when it comes to the underlying storage on FreeBSD specifically in knows rotating vs non-rotating media. Regards Steve On Sun, 11 Nov 2018 at 00:16, joe mcguckin wrote: > NVMe drives are pretty cheap and there=E2=80=99s al least one manufacture= r that > makes a JBOD that takes 24 or so NVMe drives. > So, will ZFS on FreeBSD perform well if a made a largish ZFS filer with > all flash instead of spinning disks? > > Does ZFS have to have any special knowledge that the storage is flash > based? > > Thanks, > > joe > > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >