https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-10599 Lustre <p>consider a command like:</p> <p><tt>mkfs.ext4 /dev/disk/by-id/ata-VBOX_HARDDISK_OST0PORT100000000000-part1</tt></p> <p>This yields a UDEV event with:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">ID_FS_TYPE=ext4 </pre> </div></div> <p> <br/> Creating a ldiskfs also sets </p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">ID_FS_TYPE=ext4 </pre> </div></div> <p>Possible to set that to something other than <tt>ext4</tt>, I.E. <tt>lustre</tt> or <tt>ldiskfs</tt>?</p> LU-10599

Possible for ID_FS_TYPE to be lustre / ldiskfs?

Improvement Minor Open Unresolved Nathaniel Clark Joe Grund Fri, 2 Feb 2018 23:06:06 +0000 Tue, 14 Jul 2020 20:10:49 +0000 0 7 <p>Nathaniel</p> <p>Is this something that you could help with?</p> <p>Peter</p> <p><tt>mkfs.lustre</tt> does emit udev events and they are almost the same. The FS_TYPE is listed as "ext4", since ldiskfs is based on ext4. </p> <p><b>ldiskfs</b></p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[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 </pre> </div></div> <p><b>ext4</b></p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[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: </pre> </div></div> <p>Sorry, let me update ticket to reflect my intent better</p> <p>It would be useful for the purposes of <a href="https://jira.whamcloud.com/browse/LU-12530" title="udev add/change rule loads zfs module on clients" class="issue-link" data-issue-key="LU-12530"><del>LU-12530</del></a> if there was a property of an ldiskfs-formatted device that definitely distinguished it from an ext-formatted device.</p> <p>one day ext4 will be ldiskfs so we need to think of another way.</p> <p>I agree with James in that the format of ldiskfs is as close as possible to ext4, so the <tt>ID_FS_TYPE</tt> cannot be used to distinguish them. Some options include using the <tt>ID_FS_LABEL</tt> to check for <tt>$fsname<span class="error">&#91;:-&#93;</span>TGTxxxx</tt>, where <tt>TGT</tt> is <tt>MDT</tt> or <tt>OST</tt> or <tt>MGS/MGT</tt>.</p> Related LU-12530 LU-10756 Development Rank 1|hzzs3z: Rank (Obsolete) 9223372036854775807