too many VDI/VHD per VM, how to get rid of unused ones

robert wild

thanks Olivier because when i change the magnifying glass to "type:!VDI-unmanaged" i see under the VMs the actual live vm name and the backup vm so i think its safe to delete all the orphaned ones

olivierlambert

Yes, VDIs connected to a VM are by definition not orphaned. You don't want to remove those.

robert wild

just out of interest when i change the magnifying glass to "type:VDI-unmanaged"

it lists "base copy"

what are they?

olivierlambert

They are the read only parent of a disk (when you do a snapshot, in fact it creates 3 disks: the base copy in read only, the new active disk and the snapshot).

If you remove the snapshot, then a coalesce will appear, to merge the active disk within the base copy, and get back to the initial state: 1 disk only.

robert wild

so can i delete the "type:VDI-snapshot"

robert wild

This post is deleted!

olivierlambert

Please edit your post and use Markdown syntax for code/error blocks
Rescan your SR and try again, at worst remove everything you can, leave it a while to coalesce and wait before trying to remove it again

robert wild

vdi.delete
{
"id": "1778c579-65a5-48b3-82df-9558a4f6ff7f"
}
{
"code": "SR_BACKEND_FAILURE_1200",
"params": [
"",
"",
""
],
"task": {
"uuid": "3c72bd9a-36ec-01da-b1b5-0b19468f4532",
"name_label": "Async.VDI.destroy",
"name_description": "",
"allowed_operations": [],
"current_operations": {},
"created": "20200120T19:23:41Z",
"finished": "20200120T19:23:50Z",
"status": "failure",
"resident_on": "OpaqueRef:bb0f833a-b400-4862-9d3f-07f15f34e0f8",
"progress": 1,
"type": "<none/>",
"result": "",
"error_info": [
"SR_BACKEND_FAILURE_1200",
"",
"",
""
],
"other_config": {},
"subtask_of": "OpaqueRef:NULL",
"subtasks": [],
"backtrace": "(((process"xapi @ lon-p-xenserver01")(filename lib/backtrace.ml)(line 210))((process"xapi @ lon-p-xenserver01")(filename ocaml/xapi/storage_access.ml)(line 31))((process"xapi @ lon-p-xenserver01")(filename ocaml/xapi/xapi_vdi.ml)(line 683))((process"xapi @ lon-p-xenserver01")(filename ocaml/xapi/message_forwarding.ml)(line 100))((process"xapi @ lon-p-xenserver01")(filename lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process"xapi @ lon-p-xenserver01")(filename ocaml/xapi/rbac.ml)(line 236))((process"xapi @ lon-p-xenserver01")(filename ocaml/xapi/server_helpers.ml)(line 83)))"
},
"message": "SR_BACKEND_FAILURE_1200(, , )",
"name": "XapiError",
"stack": "XapiError: SR_BACKEND_FAILURE_1200(, , )
at Function.wrap (/xen-orchestra/packages/xen-api/src/_XapiError.js:16:11)
at _default (/xen-orchestra/packages/xen-api/src/_getTaskResult.js:11:28)
at Xapi._addRecordToCache (/xen-orchestra/packages/xen-api/src/index.js:812:37)
at events.forEach.event (/xen-orchestra/packages/xen-api/src/index.js:833:13)
at Array.forEach (<anonymous>)
at Xapi._processEvents (/xen-orchestra/packages/xen-api/src/index.js:823:11)
at /xen-orchestra/packages/xen-api/src/index.js:984:13
at Generator.next (<anonymous>)
at asyncGeneratorStep (/xen-orchestra/packages/xen-api/dist/index.js:58:103)
at _next (/xen-orchestra/packages/xen-api/dist/index.js:60:194)
at tryCatcher (/xen-orchestra/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/xen-orchestra/node_modules/bluebird/js/release/promise.js:547:31)
at Promise._settlePromise (/xen-orchestra/node_modules/bluebird/js/release/promise.js:604:18)
at Promise._settlePromise0 (/xen-orchestra/node_modules/bluebird/js/release/promise.js:649:10)
at Promise._settlePromises (/xen-orchestra/node_modules/bluebird/js/release/promise.js:729:18)
at _drainQueueStep (/xen-orchestra/node_modules/bluebird/js/release/async.js:93:12)
at _drainQueue (/xen-orchestra/node_modules/bluebird/js/release/async.js:86:9)
at Async._drainQueues (/xen-orchestra/node_modules/bluebird/js/release/async.js:102:5)
at Immediate.Async.drainQueues (/xen-orchestra/node_modules/bluebird/js/release/async.js:15:14)
at runCallback (timers.js:810:20)
at tryOnImmediate (timers.js:768:5)
at processImmediate [as _immediateCallback] (timers.js:745:5)"
}

robert wild

got the command

xe vm-disk-list vm=(name or UUID)

im going to cross refernce it with this

xe vdi-list sr-uuid=$sr_uuid params=uuid managed=true

and any vdis that dont match im going to delete with

xe vdi-destroy

is this corect?

mmm... when i run a

xe vdi-list

i see i have a lot of base copies

what are they all about?

robert wild

ok Olivier

as XOA isnt working can i do it from the cli of xen, so -

xe vdi-destroy uuid=(uuid of orphaned vdi )

olivierlambert

It's not XOA that's not working. XO is the client, sending commands to the host. You had a pretty clear error coming from the host, so the issue is there.

Also, please edit your post and use Markdown syntax please, otherwise it's hard to read.

robert wild

Hi Olivier, do i need to do this -

https://support.citrix.com/article/CTX214523

olivierlambert

Why? How it's related? Have you cleaned the maximum number of VDIs?

robert wild

no...how do i do that Olivier

do you mean delete the orphan ones?

olivierlambert

Yes, removing all possible orphaned VDIs

robert wild

mmm... not looking good, got a problem with my backend SR...

Jan 21 08:57:16 lon-p-xenserver01 SMGC: [6577] Found 2 orphaned vdis
Jan 21 08:57:16 lon-p-xenserver01 SMGC: [6577] Found 2 VDIs for deletion:
Jan 21 08:57:16 lon-p-xenserver01 SMGC: [6577]   *4c5de6b9[VHD](20.000G//192.000M|ao)
Jan 21 08:57:16 lon-p-xenserver01 SMGC: [6577]   *98b10e9d[VHD](50.000G//9.445G|n)
Jan 21 08:57:16 lon-p-xenserver01 SMGC: [6577] Deleting unlinked VDI *4c5de6b9[VHD](20.000G//192.000M|ao)
Jan 21 08:57:16 lon-p-xenserver01 SM: [6577] lock: tried lock /var/lock/sm/0f956522-42d7-5328-a5ec-a7fd406ca0f3/sr, acquired: True (exists: True)
Jan 21 08:57:16 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #0
Jan 21 08:57:21 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:24 lon-p-xenserver01 SM: [9438] sr_scan {'sr_uuid': 'e4497404-baa7-c26f-49b1-266fd1f89e5f', 'subtask_of': 'DummyRef:|26c1154f-1c31-4ff7-8455-7899be8018d9|SR.scan', 'args': [], 'host_ref': 'OpaqueRef:bb0f833a-b400-4862-9d3f-07f15f34e0f8', 'session_ref': 'OpaqueRef:a5cdddcc-1b39-4fe7-8de0-457e40783795', 'device_config': {'username': 'robert.wild.admin', 'vers': '3.0', 'cifspassword_secret': '8a5270fc-72ca-59aa-a71e-c8cd9dc91750', 'iso_path': '/engineering/xen/iso', 'location': '//10.110.130.101/mmfs1', 'type': 'cifs', 'SRmaster': 'true'}, 'command': 'sr_scan', 'sr_ref': 'OpaqueRef:88f40308-1653-4d3e-906b-c85de994844d'}
Jan 21 08:57:25 lon-p-xenserver01 SM: [9464] sr_update {'sr_uuid': 'e4497404-baa7-c26f-49b1-266fd1f89e5f', 'subtask_of': 'DummyRef:|d6f3febc-c434-446f-b152-8b226d935e8c|SR.stat', 'args': [], 'host_ref': 'OpaqueRef:bb0f833a-b400-4862-9d3f-07f15f34e0f8', 'session_ref': 'OpaqueRef:6355efbb-370e-4192-b69b-d7e529058db9', 'device_config': {'username': 'robert.wild.admin', 'vers': '3.0', 'cifspassword_secret': '8a5270fc-72ca-59aa-a71e-c8cd9dc91750', 'iso_path': '/engineering/xen/iso', 'location': '//10.110.130.101/mmfs1', 'type': 'cifs', 'SRmaster': 'true'}, 'command': 'sr_update', 'sr_ref': 'OpaqueRef:88f40308-1653-4d3e-906b-c85de994844d'}
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #1
Jan 21 08:57:26 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #2
Jan 21 08:57:31 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #3
Jan 21 08:57:36 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #4
Jan 21 08:57:41 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577] '
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577] *** lvremove failed on attempt #5
Jan 21 08:57:45 lon-p-xenserver01 SM: [6577] ['/sbin/lvremove', '-f', '/dev/VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653']
Jan 21 08:57:50 lon-p-xenserver01 SM: [6577] FAILED in util.pread: (rc 5) stdout: '', stderr: '  /run/lvm/lvmetad.socket: connect failed: No such file or directory
Jan 21 08:57:50 lon-p-xenserver01 SM: [6577]   WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Jan 21 08:57:50 lon-p-xenserver01 SM: [6577]   Logical volume VG_XenStorage-0f956522-42d7-5328-a5ec-a7fd406ca0f3/VHD-4c5de6b9-ae97-4a15-ad76-84a49c397653 in use.