From: Erich Weiler <weiler@soe.ucsc.edu>
To: linux-scsi@vger.kernel.org
Subject: SCSI disk IO problem with JBOD
Date: Tue, 31 Jul 2012 21:00:47 -0700 [thread overview]
Message-ID: <5018A9EF.2080003@soe.ucsc.edu> (raw)
Hi Y'all,
First let me apologize if this is the wrong venue to post this question.
If it is not, please point me to the correct spot if possible!
We have a Dell R610 server running CentOS 6.3 (kernel
2.6.32-279.2.1.el6.x86_64). We installed a LSI 9201-16e SAS HBA in it,
upgraded to the latest firmware (9116 chipset). Then we attached a LSI
DE2660 JBOD array to it, with 60 hard drives.
At first boot, it got past grub to the initrd stage and crashed hard. A
bunch of add_disk exceptions or something. If we unplugged the array,
it boots fine.
So then I had the idea to compile the RDAC driver and create a new
initrd that preloads the RDAC driver:
mkinitrd /boot/initrd-$(uname -r)-scsi_dh.img $(uname -r)
--preload=scsi_dh_rdac
Then I booted with that. It actually did not crash this time, but did
spew a *ton* of SCSI errors on boot, like these (from dmesg):
end_request: I/O error, dev sdbh, sector 0
end_request: I/O error, dev dm-57, sector 0
end_request: I/O error, dev dm-58, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:10:0: [sdj] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdj, sector 0
end_request: I/O error, dev dm-59, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:52:0: [sdaz] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaz, sector 0
end_request: I/O error, dev dm-57, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:60:0: [sdbh] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbh, sector 0
end_request: I/O error, dev dm-58, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:10:0: [sdj] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 18 00 00 00 18 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdj, sector 24
end_request: I/O error, dev dm-59, sector 24
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:43:0: [sdaq] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 01 5d 50 a3 a8 5d 50 a3 a8 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaq, sector 5860533160
end_request: I/O error, dev dm-40, sector 5860533160
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:60:0: [sdbh] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 18 00 00 00 18 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbh, sector 24
sd 0:0:52:0: [sdaz] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 18 00 00 00 18 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaz, sector 24
end_request: I/O error, dev dm-58, sector 24
end_request: I/O error, dev dm-57, sector 24
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:53:0: [sdba] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 01 5d 50 a3 a8 5d 50 a3 a8 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdba, sector 5860533160
end_request: I/O error, dev dm-28, sector 5860533160
sd 0:0:43:0: [sdaq] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 01 5d 50 a3 a8 5d 50 a3 a8 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaq, sector 5860533160
end_request: I/O error, dev dm-40, sector 5860533160
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:53:0: [sdba] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 01 5d 50 a3 a8 5d 50 a3 a8 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdba, sector 5860533160
end_request: I/O error, dev dm-28, sector 5860533160
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:53:0: [sdba] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdba, sector 0
end_request: I/O error, dev dm-28, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:53:0: [sdba] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdba, sector 0
end_request: I/O error, dev dm-28, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:53:0: [sdba] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 18 00 00 00 18 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdba, sector 24
end_request: I/O error, dev dm-28, sector 24
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:43:0: [sdaq] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaq, sector 0
end_request: I/O error, dev dm-40, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:43:0: [sdaq] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaq, sector 0
end_request: I/O error, dev dm-40, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:43:0: [sdaq] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 18 00 00 00 18 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdaq, sector 24
end_request: I/O error, dev dm-40, sector 24
lo: Disabled Privacy Extensions
bnx2 0000:01:00.0: irq 63 for MSI/MSI-X
bnx2 0000:01:00.0: irq 64 for MSI/MSI-X
bnx2 0000:01:00.0: irq 65 for MSI/MSI-X
bnx2 0000:01:00.0: irq 66 for MSI/MSI-X
bnx2 0000:01:00.0: irq 67 for MSI/MSI-X
bnx2 0000:01:00.0: irq 68 for MSI/MSI-X
bnx2 0000:01:00.0: irq 69 for MSI/MSI-X
bnx2 0000:01:00.0: irq 70 for MSI/MSI-X
bnx2 0000:01:00.0: irq 71 for MSI/MSI-X
bnx2 0000:01:00.0: em1: using MSIX
ADDRCONF(NETDEV_UP): em1: link is not ready
bnx2 0000:01:00.0: em1: NIC Copper Link is Up, 1000 Mbps full duplex
ADDRCONF(NETDEV_CHANGE): em1: link becomes ready
em1: no IPv6 routers present
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20
__ratelimit: 304 callbacks suppressed
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
__ratelimit: 618 callbacks suppressed
__ratelimit: 370 callbacks suppressed
Buffer I/O error on device dm-56, logical block 0
Buffer I/O error on device dm-56, logical block 1
Buffer I/O error on device dm-56, logical block 2
Buffer I/O error on device dm-56, logical block 3
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
Buffer I/O error on device dm-56, logical block 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
sd 0:0:61:0: [sdbi] Target Data Integrity Failure
sd 0:0:61:0: [sdbi] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:61:0: [sdbi] Sense Key : Aborted Command [current]
sd 0:0:61:0: [sdbi] Add. Sense: Logical block reference tag check failed
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 8
end_request: I/O error, dev dm-56, sector 8
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
end_request: I/O error, dev sdbi, sector 0
end_request: I/O error, dev dm-56, sector 0
mpt2sas0: log_info(0x3112043b): originator(PL), code(0x12), sub_code(0x043b)
sd 0:0:61:0: [sdbi] CDB: cdb[0]=0x7f, sa=0x9: 7f 00 00 00 00 00 00 18 00
09 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
etc, etc, thousands of times. Just for fun I then tried to tie it
together with multipathd, using this config:
defaults {
udev_dir /dev
polling_interval 5
path_grouping_policy failover
getuid_callout "/lib/udev/scsi_id --whitelisted
--device=/dev/%n"
path_checker directio
prio const
rr_min_io 1000
rr_weight uniform
failback manual
no_path_retry fail
user_friendly_names yes
}
blacklist {
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
devnode "^hd[a-z]
# Blacklist the root disk (/dev/sda) by wwid - Find the wwid via
"/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/sda"
wwid "3600508e000000000c3c8e073ff8f3b0c"
devnode "^dcssblk[0-9]*"
}
devices {
device {
vendor "*"
product "*"
getuid_callout "/lib/udev/scsi_id --whitelisted
--device=/dev/%n"
path_selector "round-robin 0"
path_grouping_policy failover
failback immediate
rr_weight priorities
no_path_retry 5
rr_min_io 1000
path_checker tur
prio const
}
}
And it *appears* to work:
# multipath -ll
mpathak (35000c500418ae7db) dm-18 SEAGATE,ST33000651SS
size=2.7T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:24:0 sdx 65:112 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 0:0:84:0 sdce 69:32 active ready running
mpathr (35000c500419206c3) dm-3 SEAGATE,ST33000651SS
size=2.7T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:19:0 sds 65:32 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 0:0:79:0 sdbz 68:208 active ready running
mpathe (35000c500418b9ca7) dm-15 SEAGATE,ST33000651SS
size=2.7T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:11:0 sdk 8:160 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 0:0:71:0 sdbr 68:80 active ready running
mpathbc (35000c500418ac97f) dm-55 SEAGATE,ST33000651SS
size=2.7T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:59:0 sdbg 67:160 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 0:0:119:0 sddn 71:80 active ready running
mpathaw (35000cca01a8e7174) dm-32 HITACHI,HUS723030ALS641
size=2.7T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=1 status=active
| `- 0:0:35:0 sdai 66:32 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 0:0:95:0 sdcp 69:208 active ready running
But I cannot write to the disks, I get I/O errors. When I reboot I
still get the thousands of SCSI errors on boot from mpt2sas, etc. I'm
completely stuck. Does anyone have any ideas? Or, is there a better
place to ask this question?
Many, many thanks!
-erich
next reply other threads:[~2012-08-01 4:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-01 4:00 Erich Weiler [this message]
2012-08-01 5:11 ` SCSI disk IO problem with JBOD Stan Hoeppner
2012-08-01 5:31 ` Erich Weiler
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