isp0: <Qlogic ISP 2312 PCI FC-AL Adapter> port 0x4000-0x40ff mem 0xf7df0000-0xf7 df0fff irq 15 at device 1.0 on pci3
isp0: [GIANT-LOCKED]
isp0: Board Type 2312, Chip Revision 0x2, loaded F/W Revision 3.3.6
isp0: Installed in 64-Bit PCI slot
isp0: 839 max I/O commands supported
isp0: NVRAM Port WWN 0x210000e08b11c60d 
isp0: Point-to-Point mode
isp0: Loop UP
isp0: Port Database Changed
isp0: Port Database Changed
isp0: Firmware State <Config Wait->Ready>
isp0: Target 126 (Loop 0x7e) Port ID 0xfffffe (role (none)) Arrived
 Port WWN 0x2008006069517c7c
 Node WWN 0x1000006069517c7c
isp0: 2Gb link speed/s
isp0: Loop ID 255, AL_PA 0x0, Port ID 0x10800, Loop State 0x2, Topology 'F Port'
isp0: Target 255 (Loop 0xff) Port ID 0x10800 (role Initiator) Arrived
 Port WWN 0x210000e08b11c60d
 Node WWN 0x200000e08b11c60d
isp0:   Fabric Device @ PortID 0x10f00
isp0:   Fabric Device @ PortID 0x10700
isp0:   Fabric Device @ PortID 0x10800
isp0: Target 0 (Loop 0x1) Port ID 0x10f00 (role Target) Arrived
 Port WWN 0x500805f3000ba4a9
 Node WWN 0x500805f3000ba4a0
isp0: Target 1 (Loop 0x2) Port ID 0x10700 (role Initiator) Arrived
 Port WWN 0x210000e08b119312
 Node WWN 0x200000e08b119312
pass1 at isp0 bus 0 target 0 lun 0
pass1: <COMPAQ MSA1000 4.32> Fixed Storage Array SCSI-4 device
pass1: 200.000MB/s transfers, Tagged Queueing Enabled
pass3 at isp1 bus 0 target 0 lun 0
pass3: <COMPAQ MSA1000 4.32> Fixed Storage Array SCSI-4 device
pass3: 200.000MB/s transfers, Tagged Queueing Enabled
da2 at isp1 bus 0 target 0 lun 5
da2: <COMPAQ MSA1000 VOLUME 4.32> Fixed Direct Access SCSI-4 device
da2: 200.000MB/s transfers, Tagged Queueing Enabled
da2: 99999MB (204799680 512 byte sectors: 255H 63S/T 12748C)
da1 at isp0 bus 0 target 0 lun 5
da1: <COMPAQ MSA1000 VOLUME 4.32> Fixed Direct Access SCSI-4 device
da1: 200.000MB/s transfers, Tagged Queueing Enabled
da1: 99999MB (204799680 512 byte sectors: 255H 63S/T 12748C)
(da2:isp1:0:0:5): READ(6)/WRITE(6) not supported, increasing minimum_cmd_size to 10.
(da2:isp1:0:0:5): READ(10). CDB: 28 0 0 0 0 1 0 0 1 0
(da2:isp1:0:0:5): CAM Status: SCSI Status Error
(da2:isp1:0:0:5): SCSI Status: Check Condition
(da2:isp1:0:0:5): ILLEGAL REQUEST asc:20,0
(da2:isp1:0:0:5): Invalid command operation code
(da2:isp1:0:0:5): Unretryable error
(da2:isp1:0:0:5): READ(10). CDB: 28 0 0 0 0 0 0 0 1 0
(da2:isp1:0:0:5): CAM Status: SCSI Status Error
(da2:isp1:0:0:5): SCSI Status: Check Condition
(da2:isp1:0:0:5): ILLEGAL REQUEST asc:20,0
(da2:isp1:0:0:5): Invalid command operation code
(da2:isp1:0:0:5): Unretryable error
(da2:isp1:0:0:5): READ(10). CDB: 28 0 0 0 0 0 0 0 2 0
(da2:isp1:0:0:5): CAM Status: SCSI Status Error
(da2:isp1:0:0:5): SCSI Status: Check Condition
(da2:isp1:0:0:5): ILLEGAL REQUEST asc:20,0
(da2:isp1:0:0:5): Invalid command operation code
(da2:isp1:0:0:5): Unretryable error
(da2:isp1:0:0:5): READ(10). CDB: 28 0 0 0 0 0 0 0 1 0
(da2:isp1:0:0:5): CAM Status: SCSI Status Error
(da2:isp1:0:0:5): SCSI Status: Check Condition
(da2:isp1:0:0:5): ILLEGAL REQUEST asc:20,0
(da2:isp1:0:0:5): Invalid command operation code
(da2:isp1:0:0:5): Unretryable error

Index: sys/cam/scsi/scsi_da.c
===================================================================
RCS file: /home/ncvs/src/sys/cam/scsi/scsi_da.c,v
retrieving revision 1.190
diff -u -r1.190 scsi_da.c
--- sys/cam/scsi/scsi_da.c	18 Apr 2006 22:01:59 -0000	1.190
+++ sys/cam/scsi/scsi_da.c	4 May 2006 18:39:32 -0000
@@ -250,6 +250,13 @@
 		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 		/*quirks*/ DA_Q_NO_SYNC_CACHE
 	},
+	{
+		/*
+		 * The COMPAQ MSA1000 Storage doesn't work with 6 bytes.
+		 */
+		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "MSA1000*", "*"},
+		/*quirks*/ DA_Q_NO_6_BYTE
+	},
 	/* USB mass storage devices supported by umass(4) */
 	{
 		/*