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    LargeBlockSR for 4KiB blocksize disks

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    • stormiS Online
      stormi Vates 🪐 XCP-ng Team @Greg_E
      last edited by

      @Greg_E It is a separate SR type that you can select when you create a SR in Xen Orchestra.

      It's also just local SR. For NFS you still use the NFS storage driver.

      G 1 Reply Last reply Reply Quote 0
      • G Offline
        Greg_E @stormi
        last edited by

        @stormi

        Thanks, I was wondering if that was the case from reading the other threads.

        1 Reply Last reply Reply Quote 0
        • Y Offline
          yllar
          last edited by yllar

          @dthenot Are multiple SR-s with type=largeblock supported on the same host?

          1 Reply Last reply Reply Quote 0
          • olivierlambertO Offline
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by

            I don't see any reason it couldn't, but I prefer @dthenot to answer 🙂

            1 Reply Last reply Reply Quote 0
            • Y yllar referenced this topic
            • Y Offline
              yllar
              last edited by

              @dthenot

              NVMe drives attached to the PERC H965i are identified as SCSI disks in the operating system
              OS exposes a 4kn nvme device on /dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05

              Below is a log of creating a type=largeblock SR on latest XCP-ng 8.2

              It takes about 10 minutes and some errors but it does successfully create the SR and we are able to use it.
              Are all these errors expected and we can trust it's working normally?

              Console:

              # xe sr-create host-uuid=383399d1-b304-48db-ad4b-bc8fe8b56f89 type=largeblock name-label="Local Main Name storage" device-config:device=/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05
              42535e39-4c98-22c6-71eb-303caa3fc97b
              

              SM.log

              May  2 08:22:29 a1 SM: [15928] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:22:29 a1 SM: [15928] lock: acquired /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:22:29 a1 SM: [15928] sr_create {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|2d81471d-e02c-4c9c-8273-51527e849c1d|SR.create', 'args': ['0'], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:61307cea-d759-4f9a-9052-e44c0c574b1f', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_create', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              May  2 08:22:29 a1 SM: [15928] ['blockdev', '--getss', '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] ['losetup', '-f', '-v', '--show', '--sector-size', '512', '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] util.test_scsiserial: Not a serial device: /dev/loop0
              May  2 08:22:29 a1 SM: [15928] lock: opening lock file /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['/sbin/vgs', '--readonly', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928] FAILED in util.pread: (rc 5) stdout: '', stderr: '  WARNING: Not using device /dev/sda for PV HMeziz-gDTa-cNLl-1B2E-ebbh-e5ki-RIhK5T.
              May  2 08:22:29 a1 SM: [15928]   WARNING: PV HMeziz-gDTa-cNLl-1B2E-ebbh-e5ki-RIhK5T prefers device /dev/loop0 because device was seen first.
              May  2 08:22:29 a1 SM: [15928]   Volume group "XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b" not found
              May  2 08:22:29 a1 SM: [15928]   Cannot process volume group XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b
              May  2 08:22:29 a1 SM: [15928] '
              May  2 08:22:29 a1 SM: [15928] ['/bin/dd', 'if=/dev/zero', 'of=/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05.512', 'bs=1M', 'count=10', 'oflag=direct']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] lock: acquired /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['/sbin/vgcreate', '--metadatasize', '10M', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b', '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05.512']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] lock: released /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] lock: acquired /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['/sbin/vgchange', '-an', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] lock: released /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] lock: acquired /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['/sbin/lvdisplay', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928] FAILED in util.pread: (rc 5) stdout: '', stderr: '  WARNING: Not using device /dev/sda for PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94.
              May  2 08:22:29 a1 SM: [15928]   WARNING: PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94 prefers device /dev/loop0 because device was seen first.
              May  2 08:22:29 a1 SM: [15928]   Failed to find logical volume "XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b"
              May  2 08:22:29 a1 SM: [15928] '
              May  2 08:22:29 a1 SM: [15928] lock: released /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] lock: acquired /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['/sbin/vgs', '--noheadings', '--nosuffix', '--units', 'b', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] lock: released /var/lock/sm/.nil/lvm
              May  2 08:22:29 a1 SM: [15928] ['lvcreate', '-n', '42535e39-4c98-22c6-71eb-303caa3fc97b', '-L', '29302004', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] ['lvchange', '-ay', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:22:29 a1 SM: [15928]   pread SUCCESS
              May  2 08:22:29 a1 SM: [15928] ['mkfs.ext4', '-F', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b']
              
              
              May  2 08:31:40 a1 SM: [18985] lock: opening lock file /var/lock/sm/07ab18c4-a76f-d1fc-4374-babfe21fd679/sr
              May  2 08:31:40 a1 SM: [18985] LVMCache created for VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679
              May  2 08:31:40 a1 SM: [18985] lock: opening lock file /var/lock/sm/.nil/lvm
              May  2 08:31:40 a1 SM: [18985] ['/sbin/vgs', '--readonly', 'VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679']
              May  2 08:32:24 a1 SM: [18985]   pread SUCCESS
              May  2 08:32:24 a1 SM: [15928]   pread SUCCESS
              May  2 08:32:24 a1 SM: [15928] ['/usr/lib/udev/scsi_id', '-g', '--device', '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05.512']
              May  2 08:32:24 a1 SM: [18985] ***** Long LVM call of 'vgs' took 43.6255850792
              May  2 08:32:24 a1 SM: [18985] Entering _checkMetadataVolume
              May  2 08:32:24 a1 SM: [18985] LVMCache: will initialize now
              May  2 08:32:24 a1 SM: [18985] LVMCache: refreshing
              May  2 08:32:24 a1 SM: [18985] lock: acquired /var/lock/sm/.nil/lvm
              May  2 08:32:24 a1 SM: [18985] ['/sbin/lvs', '--noheadings', '--units', 'b', '-o', '+lv_tags', '/dev/VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679']
              May  2 08:32:24 a1 SM: [15928] FAILED in util.pread: (rc 1) stdout: '', stderr: ''
              May  2 08:32:24 a1 SM: [15928] ['losetup', '--list']
              May  2 08:32:24 a1 SM: [15928]   pread SUCCESS
              May  2 08:32:24 a1 SM: [15928] ['losetup', '-d', '/dev/loop0']
              May  2 08:32:24 a1 SM: [18985]   pread SUCCESS
              May  2 08:32:24 a1 SM: [18985] lock: released /var/lock/sm/.nil/lvm
              May  2 08:32:24 a1 SM: [15928]   pread SUCCESS
              May  2 08:32:24 a1 SM: [15928] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:24 a1 SM: [19294] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:24 a1 SM: [19294] lock: acquired /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:24 a1 SM: [19294] sr_attach {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|ab5bca7f-6597-4874-948a-b4c8a0b4283e|SR.attach', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:5abf6e38-a9b0-44ff-a095-e95786bb30f7', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_attach', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              May  2 08:32:24 a1 SMGC: [19294] === SR 42535e39-4c98-22c6-71eb-303caa3fc97b: abort ===
              May  2 08:32:24 a1 SM: [19294] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:24 a1 SM: [19294] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active
              May  2 08:32:24 a1 SM: [19294] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active, acquired: True (exists: True)
              May  2 08:32:24 a1 SMGC: [19294] abort: releasing the process lock
              May  2 08:32:24 a1 SM: [19294] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active
              May  2 08:32:24 a1 SM: [19294] lock: acquired /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:24 a1 SM: [19294] RESET for SR 42535e39-4c98-22c6-71eb-303caa3fc97b (master: True)
              May  2 08:32:24 a1 SM: [19294] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:24 a1 SM: [19294] set_dirty 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013' succeeded
              May  2 08:32:24 a1 SM: [19294] ['vgs', '--noheadings', '-o', 'vg_name,devices', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['losetup', '--list']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['losetup', '-f', '-v', '--show', '--sector-size', '512', '/dev/sda']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['vgs', '--noheadings', '-o', 'vg_name,devices', 'XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['lvchange', '-ay', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['fsck', '-a', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['mount', '/dev/XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b/42535e39-4c98-22c6-71eb-303caa3fc97b', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['/usr/lib/udev/scsi_id', '-g', '--device', '/dev/sda.512']
              May  2 08:32:24 a1 SM: [19294] FAILED in util.pread: (rc 1) stdout: '', stderr: ''
              May  2 08:32:24 a1 SM: [19294] Dom0 disks: ['/dev/nvme0n1p']
              May  2 08:32:24 a1 SM: [19294] Block scheduler: /dev/sda.512 (/dev/loop) wants noop
              May  2 08:32:24 a1 SM: [19294] no path /sys/block/loop/queue/scheduler
              May  2 08:32:24 a1 SM: [19294] ['/usr/bin/vhd-util', 'scan', '-f', '-m', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b/*.vhd']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] ['ls', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b', '-1', '--color=never']
              May  2 08:32:24 a1 SM: [19294]   pread SUCCESS
              May  2 08:32:24 a1 SM: [19294] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running, acquired: True (exists: True)
              May  2 08:32:24 a1 SM: [19294] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:24 a1 SM: [19294] Kicking GC
              May  2 08:32:24 a1 SMGC: [19294] === SR 42535e39-4c98-22c6-71eb-303caa3fc97b: gc ===
              May  2 08:32:24 a1 SMGC: [19335] Will finish as PID [19336]
              May  2 08:32:24 a1 SMGC: [19294] New PID [19335]
              May  2 08:32:24 a1 SM: [19294] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19336] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SMGC: [19336] *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
              May  2 08:32:25 a1 SMGC: [19336]          ***********************
              May  2 08:32:25 a1 SMGC: [19336]          *  E X C E P T I O N  *
              May  2 08:32:25 a1 SMGC: [19336]          ***********************
              May  2 08:32:25 a1 SMGC: [19336] gc: EXCEPTION <class 'util.SMException'>, SR 42535e39-4c98-22c6-71eb-303caa3fc97b not attached on this host
              May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 3388, in gc
              May  2 08:32:25 a1 SMGC: [19336]     _gc(None, srUuid, dryRun)
              May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 3267, in _gc
              May  2 08:32:25 a1 SMGC: [19336]     sr = SR.getInstance(srUuid, session)
              May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 1552, in getInstance
              May  2 08:32:25 a1 SMGC: [19336]     return FileSR(uuid, xapi, createLock, force)
              May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 2334, in __init__
              May  2 08:32:25 a1 SMGC: [19336]     SR.__init__(self, uuid, xapi, createLock, force)
              May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 1582, in __init__
              May  2 08:32:25 a1 SMGC: [19336]     raise util.SMException("SR %s not attached on this host" % uuid)
              May  2 08:32:25 a1 SMGC: [19336]
              May  2 08:32:25 a1 SMGC: [19336] *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
              May  2 08:32:25 a1 SMGC: [19336] * * * * * SR 42535e39-4c98-22c6-71eb-303caa3fc97b: ERROR
              May  2 08:32:25 a1 SMGC: [19336]
              May  2 08:32:25 a1 SM: [19367] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19367] sr_update {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|f960ef27-5d11-461d-9d4f-072e24be96b0|SR.stat', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:220b9035-d899-4882-9627-bd6d4adb9e9c', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_update', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              May  2 08:32:25 a1 SM: [19387] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19387] lock: acquired /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19387] sr_scan {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|9e3a3942-fb33-46d2-bb01-5463e16ff9a1|SR.scan', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:7e309bfe-889c-464e-b6ed-949d9e4adfb5', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_scan', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              May  2 08:32:25 a1 SM: [19387] ['/usr/bin/vhd-util', 'scan', '-f', '-m', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b/*.vhd']
              May  2 08:32:25 a1 SM: [19387]   pread SUCCESS
              May  2 08:32:25 a1 SM: [19387] ['ls', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b', '-1', '--color=never']
              May  2 08:32:25 a1 SM: [19387]   pread SUCCESS
              May  2 08:32:25 a1 SM: [19387] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:25 a1 SM: [19387] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running, acquired: True (exists: True)
              May  2 08:32:25 a1 SM: [19387] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:25 a1 SM: [19387] Kicking GC
              May  2 08:32:25 a1 SMGC: [19387] === SR 42535e39-4c98-22c6-71eb-303caa3fc97b: gc ===
              May  2 08:32:25 a1 SMGC: [19398] Will finish as PID [19399]
              May  2 08:32:25 a1 SM: [19399] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
              May  2 08:32:25 a1 SM: [19399] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active
              May  2 08:32:25 a1 SMGC: [19387] New PID [19398]
              May  2 08:32:25 a1 SM: [19387] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19399] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SMGC: [19399] Found 0 cache files
              May  2 08:32:25 a1 SM: [19399] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active, acquired: True (exists: True)
              May  2 08:32:25 a1 SM: [19399] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr, acquired: True (exists: True)
              May  2 08:32:25 a1 SM: [19399] ['/usr/bin/vhd-util', 'scan', '-f', '-m', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b/*.vhd']
              May  2 08:32:25 a1 SM: [19399]   pread SUCCESS
              May  2 08:32:25 a1 SMGC: [19399] SR 4253 ('Local Main Name storage') (0 VDIs in 0 VHD trees): no changes
              May  2 08:32:25 a1 SM: [19399] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SMGC: [19399] No work, exiting
              May  2 08:32:25 a1 SMGC: [19399] GC process exiting, no work left
              May  2 08:32:25 a1 SM: [19399] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active
              May  2 08:32:25 a1 SMGC: [19399] In cleanup
              May  2 08:32:25 a1 SMGC: [19399] SR 4253 ('Local Main Name storage') (0 VDIs in 0 VHD trees): no changes
              May  2 08:32:25 a1 SM: [19432] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19432] sr_update {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|3207059a-03f4-42a3-bd23-23d226386b08|SR.stat', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:1a441cae-d761-45b0-a025-c2ca371f0639', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_update', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              May  2 08:32:25 a1 SM: [19449] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
              May  2 08:32:25 a1 SM: [19449] sr_update {'sr_uuid': '42535e39-4c98-22c6-71eb-303caa3fc97b', 'subtask_of': 'DummyRef:|6486f365-f80b-427e-afc5-e5c8cc1b4931|SR.stat', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:1501190d-78ae-4d34-9b7f-bc6fb1103494', 'device_config': {'device': '/dev/disk/by-id/scsi-36f4ee0807844d90068121b9321711e05', 'SRmaster': 'true'}, 'command': 'sr_update', 'sr_ref': 'OpaqueRef:339f5ed6-e8e6-4421-932f-d64f7ef60013'}
              
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              • olivierlambertO Offline
                olivierlambert Vates 🪐 Co-Founder CEO
                last edited by

                Reping @dthenot

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                • Y Offline
                  yllar
                  last edited by

                  Reping @dthenot

                  dthenotD 1 Reply Last reply Reply Quote 0
                  • dthenotD Offline
                    dthenot Vates 🪐 XCP-ng Team @yllar
                    last edited by

                    @yllar

                    Sorry, I missed the first ping.

                    May  2 08:31:40 a1 SM: [18985] ['/sbin/vgs', '--readonly', 'VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679']
                    May  2 08:32:24 a1 SM: [18985]   pread SUCCESS
                    May  2 08:32:24 a1 SM: [18985] ***** Long LVM call of 'vgs' took 43.6255850792
                    

                    That would explain why it took a long time to create. 43 seconds for a call to vgs.
                    Can you try to do a vgs call yourself on your host?
                    Does it take a long time?

                    This exception is "normal":

                    May  2 08:32:25 a1 SMGC: [19336] *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
                    May  2 08:32:25 a1 SMGC: [19336]          ***********************
                    May  2 08:32:25 a1 SMGC: [19336]          *  E X C E P T I O N  *
                    May  2 08:32:25 a1 SMGC: [19336]          ***********************
                    May  2 08:32:25 a1 SMGC: [19336] gc: EXCEPTION <class 'util.SMException'>, SR 42535e39-4c98-22c6-71eb-303caa3fc97b not attached on this host
                    May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 3388, in gc
                    May  2 08:32:25 a1 SMGC: [19336]     _gc(None, srUuid, dryRun)
                    May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 3267, in _gc
                    May  2 08:32:25 a1 SMGC: [19336]     sr = SR.getInstance(srUuid, session)
                    May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 1552, in getInstance
                    May  2 08:32:25 a1 SMGC: [19336]     return FileSR(uuid, xapi, createLock, force)
                    May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 2334, in __init__
                    May  2 08:32:25 a1 SMGC: [19336]     SR.__init__(self, uuid, xapi, createLock, force)
                    May  2 08:32:25 a1 SMGC: [19336]   File "/opt/xensource/sm/cleanup.py", line 1582, in __init__
                    May  2 08:32:25 a1 SMGC: [19336]     raise util.SMException("SR %s not attached on this host" % uuid)
                    May  2 08:32:25 a1 SMGC: [19336]
                    May  2 08:32:25 a1 SMGC: [19336] *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
                    May  2 08:32:25 a1 SMGC: [19336] * * * * * SR 42535e39-4c98-22c6-71eb-303caa3fc97b: ERROR
                    May  2 08:32:25 a1 SMGC: [19336]
                    

                    It's the garbage collector trying to run on the SR but it is in the process of attaching.
                    It's weird though because it's the call to sr_attach that launched the GC.
                    Does the GC run normally on this SR on next attempts?

                    Otherwise, I don't see anything worrying the logs you shared.
                    It should be safe to use 🙂

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                    • Y Offline
                      yllar
                      last edited by

                      Hi, thank you for the response.

                      Currently these commands return data immediately

                      [10:52 a1 ~]# vgs
                        WARNING: Not using device /dev/sda for PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94.
                        WARNING: PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94 prefers device /dev/sda.512 because device is used by LV.
                        VG                                                     #PV #LV #SN Attr   VSize   VFree  
                        VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679       1   1   0 wz--n- 405.55g 405.55g
                        XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b   1   1   0 wz--n-  27.94t      0 
                      [10:40 a1 ~]# /sbin/vgs --readonly VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679
                        WARNING: Not using device /dev/sda for PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94.
                        WARNING: PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94 prefers device /dev/sda.512 because device is used by LV.
                        VG                                                 #PV #LV #SN Attr   VSize   VFree  
                        VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679   1   1   0 wz--n- 405.55g 405.55g
                      [11:02 a1 log]# /sbin/vgs --readonly XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b
                        WARNING: Not using device /dev/sda for PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94.
                        WARNING: PV tJUoM9-WUfs-XYZy-vXje-p040-30ui-dder94 prefers device /dev/sda.512 because device is used by LV.
                        VG                                                     #PV #LV #SN Attr   VSize  VFree
                        XSLocalLargeBlock-42535e39-4c98-22c6-71eb-303caa3fc97b   1   1   0 wz--n- 27.94t    0 
                      

                      Maybe this call was somehow in a locked state during the 512 SR create

                      May  2 08:31:40 a1 SM: [18985] ['/sbin/vgs', '--readonly', 'VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679']
                      May  2 08:32:24 a1 SM: [18985]   pread SUCCESS
                      May  2 08:32:24 a1 SM: [18985] ***** Long LVM call of 'vgs' took 43.6255850792
                      

                      GC seems to be normal for on next attempts

                      SR:

                      [11:02 a1 log]# xe sr-list uuid=42535e39-4c98-22c6-71eb-303caa3fc97b
                      uuid ( RO)                : 42535e39-4c98-22c6-71eb-303caa3fc97b
                                name-label ( RW): Local Main Nvme storage
                          name-description ( RW): 
                                      host ( RO): A1 - L 11 - 8.2 - 6740E - 30TB - 512GB - 100G - 2U
                                      type ( RO): largeblock
                              content-type ( RO): 
                      

                      GC:

                      May 19 10:40:29 a1 SM: [4167] Kicking GC
                      May 19 10:40:29 a1 SMGC: [4167] === SR 42535e39-4c98-22c6-71eb-303caa3fc97b: gc ===
                      May 19 10:40:29 a1 SMGC: [4286] Will finish as PID [4287]
                      May 19 10:40:29 a1 SM: [4287] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/running
                      May 19 10:40:29 a1 SM: [4287] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active
                      May 19 10:40:29 a1 SMGC: [4167] New PID [4286]
                      May 19 10:40:29 a1 SM: [4176]   pread SUCCESS
                      May 19 10:40:29 a1 SM: [4176] lock: released /var/lock/sm/.nil/lvm
                      May 19 10:40:29 a1 SM: [4176] lock: released /var/lock/sm/07ab18c4-a76f-d1fc-4374-babfe21fd679/sr
                      May 19 10:40:29 a1 SM: [4176] Entering _checkMetadataVolume
                      May 19 10:40:29 a1 SM: [4176] lock: acquired /var/lock/sm/07ab18c4-a76f-d1fc-4374-babfe21fd679/sr
                      May 19 10:40:29 a1 SM: [4176] sr_scan {'sr_uuid': '07ab18c4-a76f-d1fc-4374-babfe21fd679', 'subtask_of': 'DummyRef:|37b48251-6927-4828-8c6b-38f9b21bc157|SR.scan', 'args': [], 'host_ref': 'OpaqueRef:a26b109a-5fb2-4644-8e7e-3cc251e43d5c', 'session_ref': 'OpaqueRef:970bc095-e2eb-434b-bc9f-1c4e8f58b5c2', 'device_config': {'device': '/dev/disk/by-id/nvme-Dell_BOSS-N1_CN0CMFVPFCP0048500D5-part3', 'SRmaster': 'true'}, 'command': 'sr_scan', 'sr_ref': 'OpaqueRef:c67721e5-74b8-47fe-a180-de50665948c5'}
                      May 19 10:40:29 a1 SM: [4176] LVHDSR.scan for 07ab18c4-a76f-d1fc-4374-babfe21fd679
                      May 19 10:40:29 a1 SM: [4176] lock: acquired /var/lock/sm/.nil/lvm
                      May 19 10:40:29 a1 SM: [4176] ['/sbin/vgs', '--noheadings', '--nosuffix', '--units', 'b', 'VG_XenStorage-07ab18c4-a76f-d1fc-4374-babfe21fd679']
                      May 19 10:40:29 a1 SM: [4167] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
                      May 19 10:40:29 a1 SM: [4287] lock: opening lock file /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
                      May 19 10:40:29 a1 SMGC: [4287] Found 0 cache files
                      May 19 10:40:29 a1 SM: [4287] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/gc_active, acquired: True (exists: True)
                      May 19 10:40:29 a1 SM: [4287] lock: tried lock /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr, acquired: True (exists: True)
                      May 19 10:40:29 a1 SM: [4287] ['/usr/bin/vhd-util', 'scan', '-f', '-m', '/var/run/sr-mount/42535e39-4c98-22c6-71eb-303caa3fc97b/*.vhd']
                      May 19 10:40:29 a1 SM: [4287]   pread SUCCESS
                      May 19 10:40:29 a1 SMGC: [4287] SR 4253 ('Local Main Nvme storage') (5 VDIs in 3 VHD trees):
                      May 19 10:40:29 a1 SMGC: [4287]         255478b4(20.000G/2.603G)
                      May 19 10:40:29 a1 SMGC: [4287]         *5b3775a4(20.000G/2.603G)
                      May 19 10:40:29 a1 SMGC: [4287]             fefe7bde(20.000G/881.762M)
                      May 19 10:40:29 a1 SMGC: [4287]             761e5fa7(20.000G/45.500K)
                      May 19 10:40:29 a1 SMGC: [4287]         a3f4b8e5(20.000G/2.675G)
                      May 19 10:40:29 a1 SMGC: [4287]
                      May 19 10:40:29 a1 SM: [4287] lock: released /var/lock/sm/42535e39-4c98-22c6-71eb-303caa3fc97b/sr
                      May 19 10:40:29 a1 SM: [4176]   pread SUCCESS
                      May 19 10:40:29 a1 SM: [4176] lock: released /var/lock/sm/.nil/lvm
                      May 19 10:40:29 a1 SMGC: [4287] Got sm-config for *5b3775a4(20.000G/2.603G): {'vhd-blocks': 'eJz7///3DgYgaGBABZTyiQX/oYBc/bjsJ9Y8mNXUcgepAGTnHwb624uwvwHujgHy/z8Ghg9kpx8K7MUK6OUOXPbTyj3o5qDbQC93QNI7kn0HKDWRsYESzQC3eq69'}
                      May 19 10:40:29 a1 SMGC: [4287] No work, exiting
                      May 19 10:40:29 a1 SMGC: [4287] GC process exiting, no work left
                      
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                      • dthenotD Offline
                        dthenot Vates 🪐 XCP-ng Team @yllar
                        last edited by

                        @yllar Maybe it was because of the loopdevice not being completely created indeed.
                        No error for this GC run.

                        Everything should be ok then 🙂

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