Core-iSCSI/Infortrend

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The Infortrend EonStor A12E-G2121-2 has the following issues with Core-iSCSI and Open-iSCSI.

Core-iSCSI

With Core-iSCSI v1.6.2.9 under Red Hat AS 4.0 U4 (kernel 2.6.9-42.0.2.ELsmp x86_64) the initial connect works, but under load i got the following errors:

iSCSI Core Stack[1] - Incremented number of active iSCSI sessions to 4.
iCHANNEL[2] - Unable to recover from CmdSN timeout while in ErorrRecoveryLevel=0
iCHANNEL[2] - Performing Cleanup for failed iSCSI CID: 0 to iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - Decremented iSCSI connection count to 0 to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - released iSCSI session to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iSCSI Core Stack[1] - Decremented number of active iSCSI sessions to 3
iCHANNEL[2] - Unable to locate active network interface: eth0:0
iCHANNEL[2] - iSCSI login successful on CID: 0 to 10.10.73.253:3260,1
iCHANNEL[2] - Incremented iSCSI connection count to 1 to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - Established iSCSI session to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iSCSI Core Stack[1] - Incremented number of active iSCSI sessions to 4.
iCHANNEL[2] - Unable to recover from CmdSN timeout while in ErorrRecoveryLevel=0
iCHANNEL[2] - Performing Cleanup for failed iSCSI CID: 0 to iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - Decremented iSCSI connection count to 0 to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - released iSCSI session to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iSCSI Core Stack[1] - Decremented number of active iSCSI sessions to 3
iCHANNEL[2] - Unable to locate active network interface: eth0:0
iCHANNEL[2] - iSCSI login successful on CID: 0 to 10.10.73.253:3260,1
iCHANNEL[2] - Incremented iSCSI connection count to 1 to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iCHANNEL[2] - Established iSCSI session to node: iqn.2002-10.com.infortrend:raid.sn7051917.00
iSCSI Core Stack[1] - Incremented number of active iSCSI sessions to 4.

Open-iSCSI

With Open-iSCSI version 4:0.1.11-3 under Red Hat AS 4.0 U4 (kernel 2.6.9-42.0.2.ELsmp x86_64) the initial connect works and under load it works much better as under Core-iSCSI (ticket)

Connect Errors:

iscsi-sfnet: Loading iscsi_sfnet version 4:0.1.11-3
iscsi-sfnet: Control device major number 253
iscsi-sfnet:host1: Session established
iscsi-sfnet:host2: Session established
scsi1 : SFNet iSCSI driver
scsi2 : SFNet iSCSI driver
isa bounce pool size: 16 pages
  Vendor: IFT       Model: A12E-G2121-2      Rev: 342G
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IFT       Model: A12E-G2121-2      Rev: 342G
  Type:   Direct-Access                      ANSI SCSI revision: 03
SCSI device sdb: 3123046400 512-byte hdwr sectors (1599000 MB)
iscsi-sfnet:host1: recv_sg_data - invalid sglist for offset 0 len 20, remaining data 12, sglist size 1, dropping session
SCSI device sdb: drive cache: write back
iscsi-sfnet:host1: iscsi_recv_pdu() cannot read 16384 bytes of PDU data, only 4096 bytes of buffer available
iscsi-sfnet:host1: Session has ended quickly 1 times, login delay 2 seconds
iscsi-sfnet:host1: Session dropped
iscsi-sfnet:host1: Failing command cdb 0x00 task 9 with return code = 0x20000
iscsi-sfnet:host1: Waiting 2 seconds before next login attempt
iscsi-sfnet:host3: Session established
scsi3 : SFNet iSCSI driver
  Vendor: IFT       Model: A12E-G2121-2      Rev: 342G
  Type:   Direct-Access                      ANSI SCSI revision: 03
iscsi-sfnet:host4: Session established
scsi4 : SFNet iSCSI driver
  Vendor: IFT       Model: A12E-G2121-2      Rev: 342G
  Type:   Direct-Access                      ANSI SCSI revision: 03
iscsi-sfnet:host1: Session established
SCSI device sdb: 3123046400 512-byte hdwr sectors (1599000 MB)
iscsi-sfnet:host1: recv_sg_data - invalid sglist for offset 0 len 20, remaining data 12, sglist size 1, dropping session
SCSI device sdb: drive cache: write back
 sdb:<3>iscsi-sfnet:host1: iscsi_recv_pdu() cannot read 16384 bytes of PDU data, only 4096 bytes of buffer available
iscsi-sfnet:host1: Session has ended quickly 2 times, login delay 2 seconds
iscsi-sfnet:host1: Session dropped
iscsi-sfnet:host1: Failing command cdb 0x28 task 15 with return code = 0x20000
iscsi-sfnet:host1: Waiting 2 seconds before next login attempt
iscsi-sfnet:host1: Session established

Errors under load:

iscsi-sfnet:host2: Sending ABORT TASK for task itt 568
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 585
iscsi-sfnet:host2: task mgmt itt 585 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 568
iscsi-sfnet:host2: Sending ABORT TASK for task itt 569
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 588
iscsi-sfnet:host2: task mgmt itt 588 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 569
iscsi-sfnet:host2: Sending ABORT TASK for task itt 570
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 591
iscsi-sfnet:host2: task mgmt itt 591 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 570
iscsi-sfnet:host2: Sending ABORT TASK for task itt 594
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 616
iscsi-sfnet:host2: task mgmt itt 616 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 594
iscsi-sfnet:host2: Sending ABORT TASK for task itt 595
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 619
iscsi-sfnet:host2: task mgmt itt 619 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 595
iscsi-sfnet:host2: Sending ABORT TASK for task itt 596
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 622
iscsi-sfnet:host2: task mgmt itt 622 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 596
iscsi-sfnet:host2: Sending ABORT TASK for task itt 625
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 641
iscsi-sfnet:host2: task mgmt itt 641 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 625
iscsi-sfnet:host2: Sending ABORT TASK for task itt 626
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 644
iscsi-sfnet:host2: task mgmt itt 644 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 626
iscsi-sfnet:host2: Sending ABORT TASK for task itt 627
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 647
iscsi-sfnet:host2: task mgmt itt 647 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 627
iscsi-sfnet:host2: Sending ABORT TASK for task itt 650
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 670
iscsi-sfnet:host2: task mgmt itt 670 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 650
iscsi-sfnet:host2: Sending ABORT TASK for task itt 651
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 673
iscsi-sfnet:host2: task mgmt itt 673 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 651
iscsi-sfnet:host2: Sending ABORT TASK for task itt 652
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 676
iscsi-sfnet:host2: task mgmt itt 676 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 652
iscsi-sfnet:host2: Sending ABORT TASK for task itt 679
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 693
iscsi-sfnet:host2: task mgmt itt 693 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 679
iscsi-sfnet:host2: Sending ABORT TASK for task itt 680
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 696
iscsi-sfnet:host2: task mgmt itt 696 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 680
iscsi-sfnet:host2: Sending ABORT TASK for task itt 681
iscsi-sfnet:host2: Waking tx_thread to send task mgmt function itt 699
iscsi-sfnet:host2: task mgmt itt 699 successful
iscsi-sfnet:host2: Cleaning up aborted task itt 681
SCSI error : <2 0 0 0> return code = 0x6000000
end_request: I/O error, dev sdc, sector 312424
Buffer I/O error on device dm-4, logical block 39001
lost page write due to I/O error on dm-4
SCSI error : <2 0 0 0> return code = 0x6000000
end_request: I/O error, dev sdc, sector 312432
SCSI error : <2 0 0 0> return code = 0x6000000
end_request: I/O error, dev sdc, sector 312688

This should be fixed with Core-iSCSI-5.0.0.0.3rc6-363.

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