Date: Thu, 04 Mar 2010 23:42:31 +1100 From: David Rawling <djr@pdconsec.net> To: freebsd-questions@freebsd.org Subject: Re: IBM DS4800 Storage Message-ID: <4B8FAAB7.1060203@pdconsec.net> In-Reply-To: <20100301154004.GU70798@dan.emsphone.com> References: <75a268721003010102n4e1cc375qdbd8f3b2acb96c40@mail.gmail.com> <20100301154004.GU70798@dan.emsphone.com>
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On 2/03/2010 2:40 AM, Dan Nelson wrote: > In the last episode (Mar 01), Omer Faruk Sen said: > >> (da0:isp1:0:0:6): Vendor Specific ASC >> (da0:isp1:0:0:6): Unretryable error >> (da0:isp1:0:0:6): READ(10). CDB: 28 0 0 0 0 10 0 0 1 0 >> (da0:isp1:0:0:6): CAM Status: SCSI Status Error >> (da0:isp1:0:0:6): SCSI Status: Check Condition >> (da0:isp1:0:0:6): ILLEGAL REQUEST asc:94,1 >> (da0:isp1:0:0:6): Vendor Specific ASC >> (da0:isp1:0:0:6): Unretryable error >> > According to the "DS4000 Problem Determination Guide" at > ftp://ftp.software.ibm.com/systems/support/system_x_pdf/gc27207600.pdf#page=104 > , ASC/ASCQ 94/01 corresponds to "Invalid Request Due to Current Logical Unit > Ownership". Maybe the DS4800 thinks that the lun has been assigned to a > different host, and that's why it won't let the FreeBSD machine access it. > > Other web searches indicate that this may be an attempt to access the > passive path of multipathed device on an active/passive RAID array. If > that's the case, FreeBSD should have found another disk (da1 possibly?) that > you should be able to use. > > That being the case, it's also possible that the LUN is accessible to the FreeBSD system, but another application or system has applied a SCSI-2 "reservation" or a SCSI-3 persistent reservation to the disk; that would prevent the FreeBSD system from accessing the LUN. Perhaps see what servers or devices the DS4800 thinks is connected to the LUN. Dave. -- David Rawling PD Consulting And Security Mob: +61 412 135 513 Email: djr@pdconsec.net
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