if we use the scsi_id, it return the same thing. scsi_id --export --whitelisted --device=/dev/sdb E: ID_SERIAL_RAW=360000000000000000e001000c00000e0 E: ID_SERIAL=360000000000000000e001000c00000e0 E: ID_SERIAL_SHORT=60000000000000000e001000c00000e0 Do we need another tool or update iscsiadm/scsi_id/multipath or return to tgt 1.0.24？ 2014-06-03 14:09 GMT+08:00 Apollon Oikonomopoulos <apoikos@xxxxxxxxxx>: > Hi, > On 14:43 Mon 02 Jun , Nicholas A. Bellinger wrote: >> Forwarding to the correct stgt-devel list.. >> >> On Fri, 2014-05-30 at 17:38 +0800, lingli tang wrote: >> > 点击展示： >> > 1. 点击服务器展示服务器的：cpu（%user,%sys,%iowait,%idle）,memory(Total，used, free, >> > buffer, cache), IOPS(read request, write request), Througthput(read >> > kb, write kb)， >> > >> > we use tgtd 1.0.47 to export a disk and use iscsiadm to load it. >> > but the ID_SERIAL of this disk is not the same with scsi_id of export disk. >> > if we use tgtd 1.0.24 it is the same. > >> > >> > after iscsiadm log in, we check the ID_SERIAL of this disk using >> > “udevadm info --query=all --path=/block/sdb”： >> > E: ID_SERIAL_RAW=360000000000000000e001000c00000e0 >> > E: ID_SERIAL=360000000000000000e001000c00000e0 >> > E: ID_SERIAL_SHORT=60000000000000000e001000c00000e0 >> > >> > but with tgtd 1.0.24, it is correct: >> > E: ID_SERIAL_RAW=1test1-iscsi-iser >> > E: ID_SERIAL=1test1-iscsi-iser >> > E: ID_SERIAL_SHORT=test1-iscsi-iser >> > >> > test environment rhel6.2 > > We were debugging the exact same thing yesterday, after our persistent > links under /dev stopped working, so here's the short version of the > story: > > Commit 6402eb8 added an NAA local designator (WWN) field to tgt's 0x83 > VPD (the Device Identification page), and commit 8141d67b further added > an extended WWN. All three identifiers are sent out in tgt's 0x83 VPD, > but udev's scsi_id helper always picks the binary WWN by preference and > uses it as ID_SERIAL, i.e. ignores the ASCII T10 (ID_SERIAL) identifier > present in the VPD. If you use sg_inq from the sg3-utils package you > will get both. > > I'm not sure tgt can do much more than make both NAA identifiers > optional, the issue seems to lie with udev at this point. > > Regards, > Apollon -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
