Hi all.
I'm testing some iscsi configurations. Right now i have a iscsi target 
on a solaris system and i get some errors when i use a linux initiator 
with debian lenny and open-iscsi 2.0.869.
When i connect to a target, i always get this in the log:




Sep  5 10:02:56 srv-file kernel: scsi4 : iSCSI Initiator over TCP/IP
Sep  5 10:02:56 srv-file kernel: scsi 4:0:0:0: Direct-Access     SUN 
   SOLARIS          1    PQ: 0 ANSI: 5
Sep  5 10:02:56 srv-file kernel: sd 4:0:0:0: [sda] 2147483648 512-byte 
hardware sectors (1099512 MB)
Sep  5 10:02:56 srv-file kernel: sd 4:0:0:0: [sda] Write Protect is off
Sep  5 10:02:56 srv-file kernel: sd 4:0:0:0: [sda] Mode Sense: 67 00 00 08
Sep  5 10:02:56 srv-file kernel: sd 4:0:0:0: [sda] Write cache: 
disabled, read cache: enabled, doesn't support DPO or FUA
Sep  5 10:02:56 srv-file kernel: sd 4:0:0:0: [sda] 2147483648 512-byte 
hardware sectors (1099512 MB)
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Write Protect is off
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Mode Sense: 67 00 00 08
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Write cache: 
disabled, read cache: enabled, doesn't support DPO or FUA
Sep  5 10:02:57 srv-file kernel:  sda: sda1
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Attached SCSI disk
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file iscsid: connection2:0 is operational now
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Sense Key : Hardware 
Error [current]
Sep  5 10:02:57 srv-file kernel: Info fld=0x7ffffff8
Sep  5 10:02:57 srv-file kernel: sd 4:0:0:0: [sda] Add. Sense: No 
additional sense information
Sep  5 10:02:57 srv-file kernel: end_request: I/O error, dev sda, sector 
2147483640
Sep  5 10:02:57 srv-file kernel: Buffer I/O error on device sda, logical 
block 268435455


After this, i can use the device and all seems normal.
Just once i get some problem trying to use lvm above some iscsi devices 
(i lost all partitions :-) 3 tera of data :-) ).
Any clue?
Thanks

Pier

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