[libvirt] [libivrt] storage: Two iSCSI node records may cause refreshing iscsi pool failed

Hi, John When starting an iscsi storage pool, libvirt will execute “iscsiadm --mode node --portal 192.168.0.42 --targetname iqn.2003-10.com.xxxx --op new”, which is called by virISCSINodeNew. This will add an iSCSI node record. The record file is /etc/iscsi/nodes/iqn.2003-10.com.xxxx/192.168.0.42,3260. When we already executed "iscsiadm --mode discovery --type sendtargets --portal 192.168.0.42 --op new", another iSCSI node record will be produced in /etc/iscsi/nodes/iqn.2003-10.com.xxxx/192.168.0.42,3260,1/default. Then two iscsi sessions, as [2] and [3], will be logged in when we start the pool. Device of session [2] is /dev/sde, and device of session [3] is /dev/sdf. But there is only one path in /dev/disk/by-path, let's assume it is /dev/sdf. Refreshing storage pool will choose first session, like [2], and libvirt will find sde NOT sdf in /dev/disk/by-path. We will not find sde, then no volumes is found in the pool. I think the root reason is we have two iSCSI node records. Can we use "iscsiadm --mode discovery --type sendtargets --portal 192.168.0.42 --op new" in virISCSINodeNew? diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c index 504ffbd..a8a8644 100644 --- a/src/util/viriscsi.c +++ b/src/util/viriscsi.c @@ -469,9 +469,9 @@ virISCSINodeNew(const char *portal, int ret = -1; cmd = virCommandNewArgList(ISCSIADM, - "--mode", "node", + "--mode", "discovery", + "--type", "sendtargets", "--portal", portal, - "--targetname", target, "--op", "new", NULL); Thanks, Changkuo. ------------------------------------------------------------------------------------------------------------------------------------- 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!