<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style>body { line-height: 1.5; }body { font-size: 16pt; font-family: 微软雅黑; color: rgb(0, 0, 0); line-height: 1.5; }</style> </head> <body> <div> <pre style="margin: 0cm 0cm 0.0001pt;">Hi,</pre> <pre style="margin: 0cm 0cm 0.0001pt;"> everyone</pre> <pre style="margin: 0cm 0cm 0.0001pt;"><pre style="line-height: 32px;">This is a fateful problems then what you are talking about first. That is the bug Hannes is talking about.</pre></pre> <pre style="margin: 0cm 0cm 0.0001pt;">Warning! Received an indication that the LUN assignments on this target have changed. </pre> <pre style="margin: 0cm 0cm 0.0001pt;">The Linux SCSI layer does not automatically remap LUN assignments.</pre> </div> <div> <pre style="margin: 0cm 0cm 0.0001pt;">logged in /var/log/syslog. </pre> <pre style="margin: 0cm 0cm 0.0001pt;"> </pre> <pre style="margin: 0cm 0cm 0.0001pt;">Details:</pre> <pre style="margin: 0cm 0cm 0.0001pt;"><pre style="margin: 0cm 0cm 0.0001pt;">there will be corruption while dm-1 is accessing/dev/sdc which it thinks is LUN3 but is now LUN 2. </pre><pre style="margin: 0cm 0cm 0.0001pt;">Because we do not handle the sense indicating the LUNS changed, dm-1 will not change.</pre><pre style="margin: 0cm 0cm 0.0001pt;"><pre style="margin: 0cm 0cm 0.0001pt;">So right now you should do what Hannes suggests and use 'rescan-scsi-bus.sh -r'.</pre><pre style="margin: 0cm 0cm 0.0001pt;">This will delete old mappings and setup /dev/sdXs for new ones,</pre><pre style="margin: 0cm 0cm 0.0001pt;">or restart multipath-tool daemon.</pre><pre style="margin: 0cm 0cm 0.0001pt;"> </pre><pre style="margin: 0cm 0cm 0.0001pt;">but the corruption may have been caused.</pre><pre style="margin: 0cm 0cm 0.0001pt;">so I think /dev/sdc,/dev/sdg should be not added the dm-1 while scsi_id have different.</pre><pre style="margin: 0cm 0cm 0.0001pt;">but Now I don't have a right way to deal with the case. Thanks for your advise.</pre><pre style="margin: 0cm 0cm 0.0001pt;"> </pre></pre></pre> </div> <div>root@cvknode98:~# /lib/udev/scsi_id --whitelisted /dev/dm-1 36001438009b051b90000a000003d0000 root@cvknode98:~# udevadm info --query=all --name=/dev/dm-1 P: /devices/virtual/block/dm-1 N: dm-1 L: -100 S: disk/by-id/dm-name-36001438009b051b90000900000fe0000 S: disk/by-id/dm-uuid-mpath-36001438009b051b90000900000fe0000 S: mapper/36001438009b051b90000900000fe0000 E: DEVLINKS=/dev/disk/by-id/dm-name-36001438009b051b90000900000fe0000 /dev/disk/by-id/dm-uuid-mpath-36001438009b051b90000900000fe0000 /dev/mapper/36001438009b051b90000900000fe0000 E: DEVNAME=/dev/dm-1 E: DEVPATH=/devices/virtual/block/dm-1 E: DEVTYPE=disk E: DM_NAME=36001438009b051b90000900000fe0000 E: DM_SUSPENDED=0 E: DM_UDEV_DISABLE_DISK_RULES_FLAG=1 E: DM_UDEV_DISABLE_OTHER_RULES_FLAG=1 E: DM_UDEV_RULES=1 E: DM_UUID=mpath-36001438009b051b90000900000fe0000 E: MAJOR=252 E: MINOR=1 E: SUBSYSTEM=block E: UDEV_LOG=3 E: USEC_INITIALIZED=17779274 </div> <div> </div> <div>36001438009b051b90000900000fe0000 dm-1 HP,HSV340 size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=50 status=active | `- 1:0:0:2 sdc 8:32 active ready running `-+- policy='round-robin 0' prio=10 status=enabled `- 2:0:0:2 sdg 8:96 active ready running </div> <div> </div> <div> </div> <hr style="width: 210px; height: 1px;" color="#b5c4df" size="1" align="left"> <div> <div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"> <div style="font-size: 16px;">zhangguanghui</div> </div> </div> ------------------------------------------------------------------------------------------------------------------------------------- 本邮件及其附件含有杭州华三通信技术有限公司的保密信息，仅限于发送给上面地址中列出 的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、 或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本 邮件！ This e-mail and its attachments contain confidential information from H3C, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! </body> </html>