From owner-freebsd-questions@FreeBSD.ORG Tue Nov 3 18:08:28 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 87AFA106566C for ; Tue, 3 Nov 2009 18:08:28 +0000 (UTC) (envelope-from ryallsd@gmail.com) Received: from mail-qy0-f176.google.com (mail-qy0-f176.google.com [209.85.221.176]) by mx1.freebsd.org (Postfix) with ESMTP id 46CCF8FC17 for ; Tue, 3 Nov 2009 18:08:28 +0000 (UTC) Received: by qyk6 with SMTP id 6so2979364qyk.3 for ; Tue, 03 Nov 2009 10:08:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=bPJqNXL0CK3yBk6LaX9hfTuQ3NvMG4x8IEmwf7OWeNM=; b=P2DFAj4l5e4QcE+o/SqOEM02NqNYWqJfEMwyOsyyd1bacxlkLX68m+vsc4acUg84fo KEg/LfhxmvMd/HX+m3ni0HyBL/vIZPG7szhv60ClnfBQXhJQtb2g5k5b+K3UQxm7AnQr dkk9G6vqhLEpyt5kg0IKML2Dof1Z0rtV/Nuy0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=lwumDp/FV2OIWxrfK/p5Pdfb04q6PtqIPZrmCLW+Bfv5K03tGE1U6QGMb7it4icTFG xRM42fPqfO3TTl/xHumUzrr9PCQUCzX2Lfs8EnHxn2SVOpYpnHye1kuQWsL4aNSIlUG7 sIp6l69XyfIPUiXA6Q4jP6kY55E6XCyxg19hg= MIME-Version: 1.0 Received: by 10.229.100.221 with SMTP id z29mr45491qcn.18.1257269867599; Tue, 03 Nov 2009 09:37:47 -0800 (PST) Date: Tue, 3 Nov 2009 09:37:47 -0800 Message-ID: From: Derrick Ryalls To: FreeBSD Questions Content-Type: text/plain; charset=ISO-8859-1 Subject: ZFS disk replacement questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Nov 2009 18:08:28 -0000 Hello list, I plan on rebuilding my home fileserver next month with FreeBSD 8.0 x64 and will be using 4x 2TB drives in an external eSATA hotswap enclosure using RAIDZ. I have played around with FreeBSD in VirtualBox just to see how easy it is to deal with ZFS, but a few questions have come up for this configuration. 1) In the event of a disk failure, how do I trace back the name such as adX to a physical drive in the enclosure? Is there a way to take the drive offline then use atacontrol to spin it down or something so it is easy to identify? 2) In the event that I do experience a failure and manage to replace a working disk instead of the failed disk, am I now completely hosed or can I put the working disk back in and try pulling another drive which is hopefully the bad drive? 3) Finally, does the extra load of resilvering the replaced drive 'age' the good drives causing them to fail quicker? Any tips would be greatly appreciated. Thanks.