From owner-freebsd-scsi@FreeBSD.ORG Sat Sep 15 02:24:37 2012 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 821) id A6DA0106566C; Sat, 15 Sep 2012 02:24:37 +0000 (UTC) Date: Sat, 15 Sep 2012 02:24:37 +0000 From: John To: FreeBSD iSCSI Message-ID: <20120915022437.GA90210@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i Subject: How to force a reset of a device (disk) in an enclosre slot X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Sep 2012 02:24:37 -0000 Hi Folks, I've been poking around and can't seem to find a way to reset and hopefully acquire access to a disk device in an enclosure. For instance: FreeBSD 9.1-PRERELEASE # camcontrol smpphylist ses4 37 PHYs: PHY Attached SAS Address 0 0x5000039368233602 (pass105,da98) 1 0x5000039368238e3e (pass106,da99) 2 0x500003936823bca2 (pass107,da100) 3 0x500003936819507e (pass108,da101) 4 0x5000039368197d5a (pass109,da102) 5 0x5000039368197c6e (pass110,da103) 6 0x500003936818770e (pass111,da104) 7 0x5000039368238eba (pass112,da105) 8 0x5000039368232f42 (pass113,da106) 9 0x0000000000000000 10 0x500003936813c31e 11 0x5000039368233892 (pass114,da107) 12 0x500003936813c2ca (pass115,da108) ... Note, bay/slot 10 has a listed device address. If I were to pull the drive and re-insert it, it would show up (as da390 in this case). The above is after a fresh reboot. Note da106 to da107 skipping slot 10 (slot 9 is empty). The smp utils provide a similar view: # smp_discover /dev/ses4 phy 0:D:attached:[5000039368233602:00 t(SSP)] 6 Gbps phy 1:D:attached:[5000039368238e3e:00 t(SSP)] 6 Gbps phy 2:D:attached:[500003936823bca2:00 t(SSP)] 6 Gbps phy 3:D:attached:[500003936819507e:00 t(SSP)] 6 Gbps phy 4:D:attached:[5000039368197d5a:00 t(SSP)] 6 Gbps phy 5:D:attached:[5000039368197c6e:00 t(SSP)] 6 Gbps phy 6:D:attached:[500003936818770e:00 t(SSP)] 6 Gbps phy 7:D:attached:[5000039368238eba:00 t(SSP)] 6 Gbps phy 8:D:attached:[5000039368232f42:00 t(SSP)] 6 Gbps phy 10:D:attached:[500003936813c31e:00 t(SSP)] 6 Gbps phy 11:D:attached:[5000039368233892:00 t(SSP)] 6 Gbps phy 12:D:attached:[500003936813c2ca:00 t(SSP)] 6 Gbps ... The address of slot 10 matches. There is a disk in the slot - just isn't recognized and attached. Back to the basic question. How can I issue a command to the enclosure to force a re-initialization of the device to recover it without having to physically pull & insert it. Even if the device numbers are not sequential, I need access to the drive... Thoughts? Thanks, John