Date: Mon, 5 Mar 2018 18:16:54 +0100 From: Bengt Ahlgren <bengt.ahlgren@ri.se> To: <freebsd-fs@FreeBSD.org> Subject: "PI - Protection Information" drives? Message-ID: <uh7y3j6zbll.fsf@P142s.sics.se>
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I've recently gotten a (Dell-branded) Seagate drive which seems to be formatted with something called "Protection Information (PI) type 2". CDB read/write commands of size 6 seems to work, but any read/write commands of size 10 (or larger) do not work: (da20:mps0:0:11:0): READ(10). CDB: 28 00 00 00 00 00 00 01 00 00 (da20:mps0:0:11:0): CAM status: SCSI Status Error (da20:mps0:0:11:0): SCSI status: Check Condition (da20:mps0:0:11:0): SCSI sense: ILLEGAL REQUEST asc:20,0 (Invalid command operation code) (da20:mps0:0:11:0): Error 22, Unretryable error smartctl output says: === START OF INFORMATION SECTION === Vendor: SEAGATE Product: ST600MM0238 Revision: BS04 Compliance: SPC-4 User Capacity: 600,127,266,816 bytes [600 GB] Logical block size: 512 bytes Formatted with type 2 protection LU is fully provisioned Rotation Rate: 10000 rpm Form Factor: 2.5 inches Logical Unit id: XXX Serial number: YYY Device type: disk Transport protocol: SAS (SPL-3) Local Time is: Mon Mar 5 17:54:09 2018 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled Temperature Warning: Disabled or Not Supported Read Cache is: Enabled Writeback Cache is: Disabled Any advice? Does this "Protection Information" work at all with FreeBSD? Or do I simply need to reformat the drive without this "PI" stuff? Bengt
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