Bug 674394
| Summary: | [5.6] Problem using very large disks with iscsi but works with 5.5 scsi-target-utils | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Debbie Johnson <dejohnso> |
| Component: | scsi-target-utils | Assignee: | Andy Grover <agrover> |
| Status: | CLOSED ERRATA | QA Contact: | Storage QE <storage-qe> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 5.6 | CC: | agrover, bdonahue, fge, jathomas, ndoane, qcai, robin, roland.friedwagner |
| Target Milestone: | rc | Keywords: | Regression |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-07-21 11:36:09 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 707606 | ||
This is fixed with this upstream commit. Adding devel ack to bring this in.
commit edb4658fdeb28e0088eaad4ae610956684013af8
Author: FUJITA Tomonori <fujita.tomonori.co.jp>
Date: Tue Nov 2 02:33:28 2010 +0900
fix READ_CAPACITY_16
This fixes the 551b64ed34dbb43d6d6530a91d122c0b4d0131bd commit
regression.
Old kernels request 12 bytes for READ_CAPACITY_16. So we return
invalid data.
reproduced this problem on scsi-target-utils-1.0.8-2.el5 with 12TB disk. Problem fixed on scsi-target-utils-1.0.14-1.el5. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2011-1049.html |
Description of problem: 5.6] Problem using very large disks with iscsi but works with 5.5 scsi-target-utils On initiator get following: kernel: sda : very big device. try to use READ CAPACITY(16). kernel: sda : unsupported sector size 1097097584. Version-Release number of selected component (if applicable): V5.6 How reproducible: Very often Workround: The behavior went away when we downgraded scsi-target-utils. Removed: scsi-target-utils.x86_64 0:1.0.8-0.el5 Installed: scsi-target-utils.x86_64 0:0.0-6.20091205snap.el5_5.3 On the initiator, we're running iscsi-initiator-utils-6.2.0.872-6.el5. The machines are up to date otherwise. Further Data: Troubleshooting we have done: * create a new target name using the same backing-store /dev/sdb -- same failed result * create a new LUN with a new file based backing-store in the same target -- this worked * tried to login into the sdb backed store using a different initiator -- same failed result * tried to change direct-store to backing-store in targets.conf -- same failed result * tried to roll back the network routing changes -- same failed result * tried creating new targets with the same backing store using tgtadm directly -- same failed result * tried to mount the backing store /dev/sdb1 on the target locally -- worked just fine This is the output from the initiator: # lsscsi -vv sysfsroot: /sys [82:0:0:0] storage IET Controller 0001 - dir: /sys/bus/scsi/devices/82:0:0:0 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:0] [82:0:0:1] disk IET VIRTUAL-DISK 0001 /dev/sda dir: /sys/bus/scsi/devices/82:0:0:1 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:1] [82:0:0:2] disk IET VIRTUAL-DISK 0001 /dev/sdb dir: /sys/bus/scsi/devices/82:0:0:2 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:2] [82:0:0:3] disk IET VIRTUAL-DISK 0001 /dev/sdc dir: /sys/bus/scsi/devices/82:0:0:3 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:3] [82:0:0:4] disk IET VIRTUAL-DISK 0001 /dev/sdd dir: /sys/bus/scsi/devices/82:0:0:4 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:4] [82:0:0:5] disk IET VIRTUAL-DISK 0001 /dev/sde dir: /sys/bus/scsi/devices/82:0:0:5 [/sys/devices/platform/host82/session1/target82:0:0/82:0:0:5] This is the output from the target: # lsscsi -v [0:0:0:0] disk SEAGATE ST3600057SS 0008 - dir: /sys/bus/scsi/devices/0:0:0:0 [/sys/devices/pci0000:00/0000:00:09.0/0000:05:00.0/host0/port-0:0/end_device-0:0/target0:0:0/0:0:0:0] [0:0:1:0] disk SEAGATE ST3600057SS 0008 - dir: /sys/bus/scsi/devices/0:0:1:0 [/sys/devices/pci0000:00/0000:00:09.0/0000:05:00.0/host0/port-0:1/end_device-0:1/target0:0:1/0:0:1:0] [0:1:0:0] disk LSI Logical Volume 3000 /dev/sda dir: /sys/bus/scsi/devices/0:1:0:0 [/sys/devices/pci0000:00/0000:00:09.0/0000:05:00.0/host0/target0:1:0/0:1:0:0] [1:3:0:0] enclosu ADAPTEC Virtual SGPIO 0 0001 - dir: /sys/bus/scsi/devices/1:3:0:0 [/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/host1/target1:3:0/1:3:0:0] [1:3:1:0] enclosu ADAPTEC Virtual SGPIO 1 0001 - dir: /sys/bus/scsi/devices/1:3:1:0 [/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/host1/target1:3:1/1:3:1:0] [2:3:0:0] enclosu ADAPTEC Virtual SGPIO 0 0001 - dir: /sys/bus/scsi/devices/2:3:0:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:03:00.0/host2/target2:3:0/2:3:0:0] [2:3:1:0] enclosu ADAPTEC Virtual SGPIO 1 0001 - dir: /sys/bus/scsi/devices/2:3:1:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:03:00.0/host2/target2:3:1/2:3:1:0] [3:0:0:0] disk Adaptec card2 V1.0 /dev/sdb dir: /sys/bus/scsi/devices/3:0:0:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:0:0/3:0:0:0] [3:1:0:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:0:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:0/3:1:0:0] [3:1:1:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:1:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:1/3:1:1:0] [3:1:2:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:2:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:2/3:1:2:0] [3:1:3:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:3:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:3/3:1:3:0] [3:1:4:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:4:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:4/3:1:4:0] [3:1:5:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:5:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:5/3:1:5:0] [3:1:6:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:6:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:6/3:1:6:0] [3:1:7:0] disk OCZ COLOSSUS-LT 1. - dir: /sys/bus/scsi/devices/3:1:7:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:1:7/3:1:7:0] [3:3:0:0] enclosu ADAPTEC Virtual SGPIO 0 0001 - dir: /sys/bus/scsi/devices/3:3:0:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:3:0/3:3:0:0] [3:3:1:0] enclosu ADAPTEC Virtual SGPIO 1 0001 - dir: /sys/bus/scsi/devices/3:3:1:0 [/sys/devices/pci0000:00/0000:00:07.0/0000:04:00.0/host3/target3:3:1/3:3:1:0] [4:0:0:0] disk Adaptec archive V1.0 /dev/sdc dir: /sys/bus/scsi/devices/4:0:0:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:0:0/4:0:0:0] [4:1:0:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:0:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:0/4:1:0:0] [4:1:1:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:1:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:1/4:1:1:0] [4:1:2:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:2:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:2/4:1:2:0] [4:1:3:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:3:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:3/4:1:3:0] [4:1:4:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:4:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:4/4:1:4:0] [4:1:5:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:5:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:5/4:1:5:0] [4:1:6:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:6:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:6/4:1:6:0] [4:1:7:0] disk SEAGATE ST31000640SS 0001 - dir: /sys/bus/scsi/devices/4:1:7:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:1:7/4:1:7:0] [4:3:0:0] enclosu ADAPTEC Virtual SGPIO 0 0001 - dir: /sys/bus/scsi/devices/4:3:0:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:3:0/4:3:0:0] [4:3:1:0] enclosu ADAPTEC Virtual SGPIO 1 0001 - dir: /sys/bus/scsi/devices/4:3:1:0 [/sys/devices/pci0000:80/0000:80:09.0/0000:86:00.0/host4/target4:3:1/4:3:1:0] started over with an empty /etc/tgtd/targets.conf. This is how I've configured the target: tgtadm --lld iscsi --op new --mode target --tid=1 --targetname iqn.2001-04.com.example:storage.disk1.amiens.sys1.xyz tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /root/disk1test tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 2 -b /dev/sdb tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 3 -b /dev/sdb1 tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 4 -b /dev/sdc tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 5 -b /dev/sdc1 /root/disk1test is a 512M file I created according to the guide in DOC-15154. /dev/sdb and /dev/sdc are both 6.5T RAID 5 arrays from our Adaptec RAID controller. /dev/sdb1 and /dev/sdc1 are the partitions with an ext3 filesystem. I can mount both of these partitions locally. When I do all this, I can see the 5 luns on the initiator: # /etc/init.d/iscsi start iscsid is stopped Starting iSCSI daemon: [ OK ] [ OK ] Setting up iSCSI targets: Logging in to [iface: default, target: iqn.2001-04.com.example:storage.disk1.amiens.sys1.xyz, portal: 10.213.3.31,3260] Login to [iface: default, target: iqn.2001-04.com.example:storage.disk1.amiens.sys1.xyz, portal: 10.213.3.31,3260] successful. [ OK ] # ll /dev/sd* brw-r----- 1 root disk 8, 0 2011-01-28 12:48 /dev/sda brw-r----- 1 root disk 8, 16 2011-01-28 12:48 /dev/sdb brw-r----- 1 root disk 8, 32 2011-01-28 12:48 /dev/sdc brw-r----- 1 root disk 8, 48 2011-01-28 12:48 /dev/sdd brw-r----- 1 root disk 8, 64 2011-01-28 12:48 /dev/sde On the initiator, I can mount /dev/sda, but none of the other iscsi devices. I always have the same error in /var/log/messages # cat /var/log/messages | grep "unsupported sector size" Jan 28 12:48:27 mh01-dbx01 kernel: sdb : unsupported sector size 1229280288. Jan 28 12:48:27 mh01-dbx01 kernel: sdc : unsupported sector size 1229280288. Jan 28 12:48:27 mh01-dbx01 kernel: sdd : unsupported sector size 1229280288. Jan 28 12:48:27 mh01-dbx01 kernel: sde : unsupported sector size 1229280288. I still get the same error when I try to mount any of the iscsi devices, except the 512M flat file: