Date: Sat, 15 Sep 2012 02:24:37 +0000 From: John <jwd@FreeBSD.org> To: FreeBSD iSCSI <freebsd-scsi@freebsd.org> Subject: How to force a reset of a device (disk) in an enclosre slot Message-ID: <20120915022437.GA90210@FreeBSD.org>
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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 <HP EG0600FBDSR HPD4> (pass105,da98) 1 0x5000039368238e3e <HP EG0600FBDSR HPD4> (pass106,da99) 2 0x500003936823bca2 <HP EG0600FBDSR HPD4> (pass107,da100) 3 0x500003936819507e <HP EG0600FBDSR HPD4> (pass108,da101) 4 0x5000039368197d5a <HP EG0600FBDSR HPD4> (pass109,da102) 5 0x5000039368197c6e <HP EG0600FBDSR HPD4> (pass110,da103) 6 0x500003936818770e <HP EG0600FBDSR HPD2> (pass111,da104) 7 0x5000039368238eba <HP EG0600FBDSR HPD4> (pass112,da105) 8 0x5000039368232f42 <HP EG0600FBDSR HPD4> (pass113,da106) 9 0x0000000000000000 10 0x500003936813c31e 11 0x5000039368233892 <HP EG0600FBDSR HPD4> (pass114,da107) 12 0x500003936813c2ca <HP EG0600FBDSR HPD4> (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
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