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  1. Lustre
  2. LU-10599

Possible for ID_FS_TYPE to be lustre / ldiskfs?

Details

    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 9223372036854775807

    Description

      consider a command like:

      mkfs.ext4 /dev/disk/by-id/ata-VBOX_HARDDISK_OST0PORT100000000000-part1

      This yields a UDEV event with:

      ID_FS_TYPE=ext4

       
      Creating a ldiskfs also sets 

      ID_FS_TYPE=ext4

      Possible to set that to something other than ext4, I.E. lustre or ldiskfs?

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-12530 udev add/change rule loads zfs module on clients

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-10756 Send Uevents for interesting Lustre changes

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Activity

            [LU-10599] Possible for ID_FS_TYPE to be lustre / ldiskfs?
            adilger Andreas Dilger added a comment -

            I agree with James in that the format of ldiskfs is as close as possible to ext4, so the ID_FS_TYPE cannot be used to distinguish them. Some options include using the ID_FS_LABEL to check for $fsname[:-]TGTxxxx, where TGT is MDT or OST or MGS/MGT.

            adilger Andreas Dilger added a comment - I agree with James in that the format of ldiskfs is as close as possible to ext4, so the ID_FS_TYPE cannot be used to distinguish them. Some options include using the ID_FS_LABEL to check for $fsname [:-] TGTxxxx , where TGT is MDT or OST or MGS/MGT .
            simmonsja James A Simmons added a comment -

            one day ext4 will be ldiskfs so we need to think of another way.

            simmonsja James A Simmons added a comment - one day ext4 will be ldiskfs so we need to think of another way.
            ofaaland Olaf Faaland added a comment -

            It would be useful for the purposes of LU-12530 if there was a property of an ldiskfs-formatted device that definitely distinguished it from an ext-formatted device.

            ofaaland Olaf Faaland added a comment - It would be useful for the purposes of LU-12530 if there was a property of an ldiskfs-formatted device that definitely distinguished it from an ext-formatted device.
            joe.grund Joe Grund added a comment -

            Sorry, let me update ticket to reflect my intent better

            joe.grund Joe Grund added a comment - Sorry, let me update ticket to reflect my intent better
            utopiabound Nathaniel Clark added a comment -

            mkfs.lustre does emit udev events and they are almost the same. The FS_TYPE is listed as "ext4", since ldiskfs is based on ext4.

            ldiskfs

            [root@ieel-oss05 ~]# udevadm info --query=property --name /dev/sdb
DEVLINKS=/dev/disk/by-id/scsi-36001405d57eec3c890142e593bc04a66 /dev/disk/by-id/wwn-0x6001405d57eec3c890142e593bc04a66 /dev/disk/by-label/scratch:OST0000 /dev/disk/by-path/ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-0 /dev/disk/by-uuid/89fa6c99-2c9d-471c-bf86-4893c54583c6
DEVNAME=/dev/sdb
DEVPATH=/devices/platform/host5/session3/target5:0:0/5:0:0:0/block/sdb
DEVTYPE=disk
ID_BUS=scsi
ID_FS_LABEL=scratch:OST0000
ID_FS_LABEL_ENC=scratch:OST0000
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=89fa6c99-2c9d-471c-bf86-4893c54583c6
ID_FS_UUID_ENC=89fa6c99-2c9d-471c-bf86-4893c54583c6
ID_FS_VERSION=1.0
ID_MODEL=ost5
ID_MODEL_ENC=ost5\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_PATH=ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-0
ID_PATH_TAG=ip-192_168_56_3_3260-iscsi-iqn_2005-06_net_utopiabound_ieel-storage_ieel-os2-lun-0
ID_REVISION=4.0
ID_SCSI=1
ID_SCSI_SERIAL=d57eec3c-8901-42e5-93bc-04a660762a87
ID_SERIAL=36001405d57eec3c890142e593bc04a66
ID_SERIAL_SHORT=6001405d57eec3c890142e593bc04a66
ID_TARGET_PORT=0
ID_TYPE=disk
ID_VENDOR=LIO-ORG
ID_VENDOR_ENC=LIO-ORG\x20
ID_WWN=0x6001405d57eec3c8
ID_WWN_VENDOR_EXTENSION=0x90142e593bc04a66
ID_WWN_WITH_EXTENSION=0x6001405d57eec3c890142e593bc04a66
IML_IS_RO=0
IML_SCSI_80=SLIO-ORG ost5            d57eec3c-8901-42e5-93bc-04a660762a87
IML_SCSI_83=36001405d57eec3c890142e593bc04a66
IML_SIZE=16777216
MAJOR=8
MINOR=16
MPATH_SBIN_PATH=/sbin
SUBSYSTEM=block
TAGS=:systemd:
USEC_INITIALIZED=285444

            ext4

            [root@ieel-oss05 ~]# udevadm info --query=property --name /dev/sdc
DEVLINKS=/dev/disk/by-id/scsi-360014050c340c8c56654461bf31ca064 /dev/disk/by-id/wwn-0x60014050c340c8c56654461bf31ca064 /dev/disk/by-path/ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-1 /dev/disk/by-uuid/45719ab5-bff2-4aa5-9e41-5239c0d56bcf
DEVNAME=/dev/sdc
DEVPATH=/devices/platform/host5/session3/target5:0:0/5:0:0:1/block/sdc
DEVTYPE=disk
ID_BUS=scsi
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=45719ab5-bff2-4aa5-9e41-5239c0d56bcf
ID_FS_UUID_ENC=45719ab5-bff2-4aa5-9e41-5239c0d56bcf
ID_FS_VERSION=1.0
ID_MODEL=ost6
ID_MODEL_ENC=ost6\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_PATH=ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-1
ID_PATH_TAG=ip-192_168_56_3_3260-iscsi-iqn_2005-06_net_utopiabound_ieel-storage_ieel-os2-lun-1
ID_REVISION=4.0
ID_SCSI=1
ID_SCSI_SERIAL=0c340c8c-5665-4461-bf31-ca064dc55200
ID_SERIAL=360014050c340c8c56654461bf31ca064
ID_SERIAL_SHORT=60014050c340c8c56654461bf31ca064
ID_TARGET_PORT=0
ID_TYPE=disk
ID_VENDOR=LIO-ORG
ID_VENDOR_ENC=LIO-ORG\x20
ID_WWN=0x60014050c340c8c5
ID_WWN_VENDOR_EXTENSION=0x6654461bf31ca064
ID_WWN_WITH_EXTENSION=0x60014050c340c8c56654461bf31ca064
IML_IS_RO=0
IML_SCSI_80=SLIO-ORG ost6            0c340c8c-5665-4461-bf31-ca064dc55200
IML_SCSI_83=360014050c340c8c56654461bf31ca064
IML_SIZE=16777216
MAJOR=8
MINOR=32
MPATH_SBIN_PATH=/sbin
SUBSYSTEM=block
TAGS=:systemd:
            utopiabound Nathaniel Clark added a comment - mkfs.lustre does emit udev events and they are almost the same. The FS_TYPE is listed as "ext4", since ldiskfs is based on ext4. ldiskfs [root@ieel-oss05 ~]# udevadm info --query=property --name /dev/sdb DEVLINKS=/dev/disk/by-id/scsi-36001405d57eec3c890142e593bc04a66 /dev/disk/by-id/wwn-0x6001405d57eec3c890142e593bc04a66 /dev/disk/by-label/scratch:OST0000 /dev/disk/by-path/ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-0 /dev/disk/by-uuid/89fa6c99-2c9d-471c-bf86-4893c54583c6 DEVNAME=/dev/sdb DEVPATH=/devices/platform/host5/session3/target5:0:0/5:0:0:0/block/sdb DEVTYPE=disk ID_BUS=scsi ID_FS_LABEL=scratch:OST0000 ID_FS_LABEL_ENC=scratch:OST0000 ID_FS_TYPE=ext4 ID_FS_USAGE=filesystem ID_FS_UUID=89fa6c99-2c9d-471c-bf86-4893c54583c6 ID_FS_UUID_ENC=89fa6c99-2c9d-471c-bf86-4893c54583c6 ID_FS_VERSION=1.0 ID_MODEL=ost5 ID_MODEL_ENC=ost5\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20 ID_PATH=ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-0 ID_PATH_TAG=ip-192_168_56_3_3260-iscsi-iqn_2005-06_net_utopiabound_ieel-storage_ieel-os2-lun-0 ID_REVISION=4.0 ID_SCSI=1 ID_SCSI_SERIAL=d57eec3c-8901-42e5-93bc-04a660762a87 ID_SERIAL=36001405d57eec3c890142e593bc04a66 ID_SERIAL_SHORT=6001405d57eec3c890142e593bc04a66 ID_TARGET_PORT=0 ID_TYPE=disk ID_VENDOR=LIO-ORG ID_VENDOR_ENC=LIO-ORG\x20 ID_WWN=0x6001405d57eec3c8 ID_WWN_VENDOR_EXTENSION=0x90142e593bc04a66 ID_WWN_WITH_EXTENSION=0x6001405d57eec3c890142e593bc04a66 IML_IS_RO=0 IML_SCSI_80=SLIO-ORG ost5 d57eec3c-8901-42e5-93bc-04a660762a87 IML_SCSI_83=36001405d57eec3c890142e593bc04a66 IML_SIZE=16777216 MAJOR=8 MINOR=16 MPATH_SBIN_PATH=/sbin SUBSYSTEM=block TAGS=:systemd: USEC_INITIALIZED=285444 ext4 [root@ieel-oss05 ~]# udevadm info --query=property --name /dev/sdc DEVLINKS=/dev/disk/by-id/scsi-360014050c340c8c56654461bf31ca064 /dev/disk/by-id/wwn-0x60014050c340c8c56654461bf31ca064 /dev/disk/by-path/ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-1 /dev/disk/by-uuid/45719ab5-bff2-4aa5-9e41-5239c0d56bcf DEVNAME=/dev/sdc DEVPATH=/devices/platform/host5/session3/target5:0:0/5:0:0:1/block/sdc DEVTYPE=disk ID_BUS=scsi ID_FS_TYPE=ext4 ID_FS_USAGE=filesystem ID_FS_UUID=45719ab5-bff2-4aa5-9e41-5239c0d56bcf ID_FS_UUID_ENC=45719ab5-bff2-4aa5-9e41-5239c0d56bcf ID_FS_VERSION=1.0 ID_MODEL=ost6 ID_MODEL_ENC=ost6\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20 ID_PATH=ip-192.168.56.3:3260-iscsi-iqn.2005-06.net.utopiabound.ieel-storage:ieel-os2-lun-1 ID_PATH_TAG=ip-192_168_56_3_3260-iscsi-iqn_2005-06_net_utopiabound_ieel-storage_ieel-os2-lun-1 ID_REVISION=4.0 ID_SCSI=1 ID_SCSI_SERIAL=0c340c8c-5665-4461-bf31-ca064dc55200 ID_SERIAL=360014050c340c8c56654461bf31ca064 ID_SERIAL_SHORT=60014050c340c8c56654461bf31ca064 ID_TARGET_PORT=0 ID_TYPE=disk ID_VENDOR=LIO-ORG ID_VENDOR_ENC=LIO-ORG\x20 ID_WWN=0x60014050c340c8c5 ID_WWN_VENDOR_EXTENSION=0x6654461bf31ca064 ID_WWN_WITH_EXTENSION=0x60014050c340c8c56654461bf31ca064 IML_IS_RO=0 IML_SCSI_80=SLIO-ORG ost6 0c340c8c-5665-4461-bf31-ca064dc55200 IML_SCSI_83=360014050c340c8c56654461bf31ca064 IML_SIZE=16777216 MAJOR=8 MINOR=32 MPATH_SBIN_PATH=/sbin SUBSYSTEM=block TAGS=:systemd:
            pjones Peter Jones added a comment -

            Nathaniel

            Is this something that you could help with?

            Peter

            pjones Peter Jones added a comment - Nathaniel Is this something that you could help with? Peter

            People

              utopiabound Nathaniel Clark
              joe.grund Joe Grund
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              Dates

                Created:
                Updated: