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#1 2021-08-17 06:07:49

netsky
Member
Registered: 2017-12-05
Posts: 12

Backup fails - Error code 3923 can't access device /dev/disks/UUID

I downloaded the latest version of xsibacup DC today and tried on ESXi 7.0 free but got the below error

[root@jp-tokyo-esxi2:/vmfs/volumes/5d0c9541-3f06c58c-f3ba-0cc47afdd2be/XSIBackup-DC/etc/jobs] ./panopta-backup
|---------------------------------------------------------------------------------|
||-------------------------------------------------------------------------------||
|||   (c)XSIBackup-Free 1.5.0.13: Backup & Replication Software                 |||
|||   (c)33HOPS, Sistemas de Informacion y Redes, S.L. | All Rights Reserved    |||
||-------------------------------------------------------------------------------||
|---------------------------------------------------------------------------------|
                   (c)Daniel J. Garcia Fidalgo | info@33hops.com
|---------------------------------------------------------------------------------|
System Information: ESXi, Kernel 7 Major 0 Minor 1 Patch 0
-------------------------------------------------------------------------------------------------------------
License: unlicensed trial version, remaining trial time: 150:00:42 | (c)XSIBackup-Free
-------------------------------------------------------------------------------------------------------------
PID: 4828487, Running job as: root
-------------------------------------------------------------------------------------------------------------
(c)XSIBackup-Free replicating data to /vmfs/volumes/VM/VMBackup
-------------------------------------------------------------------------------------------------------------
Performing --replica action
-------------------------------------------------------------------------------------------------------------
Backup folder '/vmfs/volumes/VM/VMBackup'
-------------------------------------------------------------------------------------------------------------
Item number 1 in this job
-------------------------------------------------------------------------------------------------------------
Available space in backup volume:           2999722180608 (2.79 TB)
-------------------------------------------------------------------------------------------------------------
JP-PANOPTA Hardware Version is: 13
-------------------------------------------------------------------------------------------------------------
Virtual Machine Name: JP-PANOPTA
-------------------------------------------------------------------------------------------------------------
(c)ESXi 7.0 or higher detected, all snapshots were removed for VM JP-PANOPTA(11)
-------------------------------------------------------------------------------------------------------------
Creating snapshot VM : JP-PANOPTA (powered on)
-------------------------------------------------------------------------------------------------------------
*** Snapshot was successfully created ***
-------------------------------------------------------------------------------------------------------------
Virtual Machine: JP-PANOPTA
-------------------------------------------------------------------------------------------------------------
Backup start date: 2021-08-17T05:59:22
-------------------------------------------------------------------------------------------------------------
2021-08-17 05:59:22 | Backing up 17 files, total size is 58.30 GB
-------------------------------------------------------------------------------------------------------------
    NUMBER                                                         FILE             SIZE          PROGRESS
-------------------------------------------------------------------------------------------------------------
    1/17                                                 JP-PANOPTA.vmx          2.89 KB    | Done   0.00%
-------------------------------------------------------------------------------------------------------------
2021-08-17T05:59:22 | Error code 3923 at file xsibackup.c, line 3923 | Error description: can't access device /dev/disks/UUID
-------------------------------------------------------------------------------------------------------------
    2/17                                           JP-PANOPTA-flat.vmdk         50.00 GB    | Done   0.00%
-------------------------------------------------------------------------------------------------------------
2021-08-17T05:59:23 | Error code 279 at file copy-in.c, line 279 | Error description: can't open input file: /dev/disks/UUID


The backup command is as below

/vmfs/volumes/ESXi/XSIBackup-DC/xsibackup \
--replica \
"VMs(JP-PANOPTA)" \
"/vmfs/volumes/VM/VMBackup" \



/vmfs/volumes/VM is internal datastore. We tried with NFS datastore but experienced the same error

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#2 2021-08-17 08:48:02

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Please provide the output of this two commands:

ls -la /vmfs/volumes/
esxcli storage vmfs extent list

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#3 2021-08-17 08:54:05

netsky
Member
Registered: 2017-12-05
Posts: 12

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Hi team,

Thanks a lot for your response. Below is your requested information

[root@jp-tokyo-esxi2:~] ls -al /vmfs/volumes/
total 3588
drwxr-xr-x    1 root     root           512 Aug 17 08:52 .
drwxr-xr-x    1 root     root           512 Feb 26 07:46 ..
drwxrwxrwx    1 root     root           706 Aug 17 02:19 308f2f08-3e85e816
drwxr-xr-x    1 root     root             8 Jan  1  1970 582d37d9-ff441041-c789-f8511512c1da
drwxr-xr-t    1 root     root         73728 Aug 17 02:34 5d0c9541-3f06c58c-f3ba-0cc47afdd2be
drwxr-xr-t    1 root     root         77824 Mar  8 00:50 5d0ca287-dc7c5890-0873-0cc47afdd2be
drwxr-xr-x    1 root     root             8 Jan  1  1970 5faccf62-4e451b9c-6331-0cc47afdd2be
drwxr-xr-t    1 root     root         77824 Jan 15  2021 5facd03d-2dfad930-a2d8-0cc47afdd2be
lrwxr-xr-x    1 root     root            35 Aug 17 08:52 BOOTBANK1 -> 5faccf62-4e451b9c-6331-0cc47afdd2be
lrwxr-xr-x    1 root     root            35 Aug 17 08:52 BOOTBANK2 -> 582d37d9-ff441041-c789-f8511512c1da
lrwxr-xr-x    1 root     root            35 Aug 17 08:52 ESXi -> 5d0c9541-3f06c58c-f3ba-0cc47afdd2be
lrwxr-xr-x    1 root     root            35 Aug 17 08:52 OSDATA-5facd03d-2dfad930-a2d8-0cc47afdd2be -> 5facd03d-2dfad930-a2d8-0cc47afdd2be
lrwxr-xr-x    1 root     root            35 Aug 17 08:52 VM -> 5d0ca287-dc7c5890-0873-0cc47afdd2be
lrwxr-xr-x    1 root     root            17 Aug 17 08:52 nasbackup -> 308f2f08-3e85e816
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~] esxcli storage vmfs extent list
Volume Name                                 VMFS UUID                            Extent Number  Device Name                           Partition
------------------------------------------  -----------------------------------  -------------  ------------------------------------  ---------
ESXi                                        5d0c9541-3f06c58c-f3ba-0cc47afdd2be              0  naa.60030480253bc9002450c8c504acb6bc          8
VM                                          5d0ca287-dc7c5890-0873-0cc47afdd2be              0  naa.60030480253bc9002450c8be043f7568          2
OSDATA-5facd03d-2dfad930-a2d8-0cc47afdd2be  5facd03d-2dfad930-a2d8-0cc47afdd2be              0  naa.60030480253bc9002450c8c504acb6bc          7

Last edited by netsky (2021-08-17 09:00:34)

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#4 2021-08-17 11:04:36

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Your output is normal.

You are running (c)XSIBackup from a datastore named "ESXi" which is a reserved word to (c)XSIBackup.
Please, install to the recommended location (/scratch/XSI/XSIBackup-DC) and try again, just to clear some variables.

Although that should not cause any problem, there's a possibility that the keyword is causing some conflict in some inner algorithm, we'll dedicate some time to revise disk selection algorithms.

Also, check that we have tested the (c)ESXi version you want to install to before doing it.
https://33hops.com/xsibackup-vmware-esx … -list.html

UPDATE:

The above are just general considerations and a move to narrow the problem down.
Please, provide the output of the commands:

vim-cmd vmsvc/getallvms
vmware -v

So that we can try to reproduce your issue as closely as possible. The purpose of vim-cmd vmsvc/getallvms is to retrieve the DS name your VM is sitting at.
If you don't want to publish your real output here, please mask it down and send the real one to our support department.
If it is due to some bug we will release a quick fix

Please download this alternative version and let us know if that fixed your issue: Alternative debug version

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#5 2021-08-17 23:14:47

netsky
Member
Registered: 2017-12-05
Posts: 12

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Here is the output for your reference

[root@jp-tokyo-esxi2:~] vim-cmd vmsvc/getallvms
Vmid        Name                         File                          Guest OS          Version                                            Annotation
1      JP-TOKYO-DNS2    [VM] JP-DNS2/JP-DNS2.vmx                 centos7_64Guest         vmx-13                                             
10     JP-VEEAM         [VM] JP-VEEAM/JP-VEEAM.vmx               windows9Server64Guest   vmx-13                                             
11     JP-PANOPTA       [VM] JP-PANOPTA/JP-PANOPTA.vmx           ubuntu64Guest           vmx-13                                             
7      JP-FAC-TEST      [VM] JP-FAC-TEST/JP-FAC-TEST.vmx         other26xLinuxGuest      vmx-10    FortiAuthenticator Virtual Appliance by Fortinet Technologies Inc. (http://www.fortinet.com)
8      JP-Ubuntu-Test   [VM] JP-Ubuntu-Test/JP-Ubuntu-Test.vmx   ubuntu64Guest           vmx-13                                             
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~]
[root@jp-tokyo-esxi2:~] vmware -v
VMware ESXi 7.0.1 build-17551050
[root@jp-tokyo-esxi2:~]

We will try the suggested version and update later

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#6 2021-08-17 23:51:38

netsky
Member
Registered: 2017-12-05
Posts: 12

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Hi Team,

This issue seems resolved with the provided release.
We will continue to monitor the status and let you know if there are further issues

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#7 2021-08-18 11:08:00

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Thank you for your feedback. You can safely use that version, it contains a tweak in comparison to 1.5.0.13 and will become 1.5.0.14 as we eventually add some additional tweak or fix.

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#8 2021-08-18 11:14:14

netsky
Member
Registered: 2017-12-05
Posts: 12

Re: Backup fails - Error code 3923 can't access device /dev/disks/UUID

Thanks a lot for your great support!

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